[style] apply google python style guide (#4501)

This commit applies and enforces Google's python style for tests.

tests/scripts/thread-cert/Cert_5_1_01_RouterAttach.py

@@ -39,6 +39,7 @@ ROUTER = 2
 
 
 class Cert_5_1_01_RouterAttach(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -110,9 +111,7 @@ class Cert_5_1_01_RouterAttach(unittest.TestCase):
         msg.assertMleMessageContainsTlv(mle.Version)
 
         # 4 - Router
-        msg = router_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_REQUEST
-        )
+        msg = router_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST)
         msg.assertSentToNode(self.nodes[LEADER])
         msg.assertMleMessageContainsTlv(mle.Response)
         msg.assertMleMessageContainsTlv(mle.LinkLayerFrameCounter)
@@ -125,8 +124,7 @@ class Cert_5_1_01_RouterAttach(unittest.TestCase):
 
         # 5 - Leader
         msg = leader_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        )
+            mle.CommandType.CHILD_ID_RESPONSE)
         msg.assertSentToNode(self.nodes[ROUTER])
         msg.assertMleMessageContainsTlv(mle.SourceAddress)
         msg.assertMleMessageContainsTlv(mle.LeaderData)
@@ -162,8 +160,7 @@ class Cert_5_1_01_RouterAttach(unittest.TestCase):
 
         # 9 - Leader
         msg = leader_messages.next_mle_message(
-            mle.CommandType.LINK_ACCEPT_AND_REQUEST
-        )
+            mle.CommandType.LINK_ACCEPT_AND_REQUEST)
         msg.assertMleMessageContainsTlv(mle.SourceAddress)
         msg.assertMleMessageContainsTlv(mle.LeaderData)
         msg.assertMleMessageContainsTlv(mle.Response)

tests/scripts/thread-cert/Cert_5_1_02_ChildAddressTimeout.py

@@ -42,6 +42,7 @@ MTDS = [ED, SED]
 
 
 class Cert_5_1_02_ChildAddressTimeout(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_1_03_RouterAddressReallocation.py

@@ -40,6 +40,7 @@ ROUTER2 = 3
 
 
 class Cert_5_1_03_RouterAddressReallocation(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -124,8 +125,7 @@ class Cert_5_1_03_RouterAddressReallocation(unittest.TestCase):
 
         # Leader or Router1 can be parent of Router2
         if leader_messages.contains_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        ):
+                mle.CommandType.CHILD_ID_RESPONSE):
             leader_messages.next_mle_message(mle.CommandType.CHILD_ID_RESPONSE)
 
             msg = router2_messages.next_coap_message("0.02")
@@ -134,11 +134,8 @@ class Cert_5_1_03_RouterAddressReallocation(unittest.TestCase):
             msg = leader_messages.next_coap_message("2.04")
 
         elif router1_messages.contains_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        ):
-            router1_messages.next_mle_message(
-                mle.CommandType.CHILD_ID_RESPONSE
-            )
+                mle.CommandType.CHILD_ID_RESPONSE):
+            router1_messages.next_mle_message(mle.CommandType.CHILD_ID_RESPONSE)
 
             msg = router2_messages.next_coap_message("0.02")
             msg.assertCoapMessageRequestUriPath("/a/as")
@@ -154,8 +151,7 @@ class Cert_5_1_03_RouterAddressReallocation(unittest.TestCase):
         # Router1 make two attempts to reconnect to its current Partition.
         for _ in range(4):
             msg = router1_messages.next_mle_message(
-                mle.CommandType.PARENT_REQUEST
-            )
+                mle.CommandType.PARENT_REQUEST)
             msg.assertSentWithHopLimit(255)
             msg.assertSentToDestinationAddress("ff02::2")
             msg.assertMleMessageContainsTlv(mle.Mode)
@@ -182,8 +178,7 @@ class Cert_5_1_03_RouterAddressReallocation(unittest.TestCase):
 
         # 7 - Router1
         msg = router1_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_REQUEST
-        )
+            mle.CommandType.CHILD_ID_REQUEST)
         msg.assertSentToNode(self.nodes[ROUTER2])
         msg.assertMleMessageContainsTlv(mle.Response)
         msg.assertMleMessageContainsTlv(mle.LinkLayerFrameCounter)

tests/scripts/thread-cert/Cert_5_1_04_RouterAddressReallocation.py

@@ -40,6 +40,7 @@ ROUTER2 = 3
 
 
 class Cert_5_1_04_RouterAddressReallocation(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -123,8 +124,7 @@ class Cert_5_1_04_RouterAddressReallocation(unittest.TestCase):
 
         # Leader or Router1 can be parent of Router2
         if leader_messages.contains_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        ):
+                mle.CommandType.CHILD_ID_RESPONSE):
             leader_messages.next_mle_message(mle.CommandType.CHILD_ID_RESPONSE)
 
             msg = router2_messages.next_coap_message("0.02")
@@ -133,11 +133,8 @@ class Cert_5_1_04_RouterAddressReallocation(unittest.TestCase):
             msg = leader_messages.next_coap_message("2.04")
 
         elif router1_messages.contains_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        ):
-            router1_messages.next_mle_message(
-                mle.CommandType.CHILD_ID_RESPONSE
-            )
+                mle.CommandType.CHILD_ID_RESPONSE):
+            router1_messages.next_mle_message(mle.CommandType.CHILD_ID_RESPONSE)
 
             msg = router2_messages.next_coap_message("0.02")
             msg.assertCoapMessageRequestUriPath("/a/as")
@@ -153,8 +150,7 @@ class Cert_5_1_04_RouterAddressReallocation(unittest.TestCase):
         # Router1 make two attempts to reconnect to its current Partition.
         for _ in range(4):
             msg = router1_messages.next_mle_message(
-                mle.CommandType.PARENT_REQUEST
-            )
+                mle.CommandType.PARENT_REQUEST)
             msg.assertSentWithHopLimit(255)
             msg.assertSentToDestinationAddress("ff02::2")
             msg.assertMleMessageContainsTlv(mle.Mode)
@@ -184,9 +180,7 @@ class Cert_5_1_04_RouterAddressReallocation(unittest.TestCase):
         router2_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST)
 
         # 9 - Router1
-        msg = router1_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router1_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[ROUTER2])
         msg.assertMleMessageContainsTlv(mle.SourceAddress)
         msg.assertMleMessageContainsTlv(mle.LeaderData)
@@ -199,8 +193,7 @@ class Cert_5_1_04_RouterAddressReallocation(unittest.TestCase):
         msg.assertMleMessageContainsTlv(mle.Version)
 
         msg = router1_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        )
+            mle.CommandType.CHILD_ID_RESPONSE)
         msg.assertSentToNode(self.nodes[ROUTER2])
         msg.assertMleMessageContainsTlv(mle.SourceAddress)
         msg.assertMleMessageContainsTlv(mle.LeaderData)

tests/scripts/thread-cert/Cert_5_1_05_RouterAddressTimeout.py

@@ -39,6 +39,7 @@ ROUTER1 = 2
 
 
 class Cert_5_1_05_RouterAddressTimeout(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_1_06_RemoveRouterId.py

@@ -40,6 +40,7 @@ ROUTER1 = 2
 
 
 class Cert_5_1_06_RemoveRouterId(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -105,8 +106,7 @@ class Cert_5_1_06_RemoveRouterId(unittest.TestCase):
         command.check_parent_request(msg, is_first_request=True)
 
         msg = router1_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_REQUEST, sent_to_node=self.nodes[LEADER]
-        )
+            mle.CommandType.CHILD_ID_REQUEST, sent_to_node=self.nodes[LEADER])
         command.check_child_id_request(
             msg,
             tlv_request=CheckType.CONTAIN,

tests/scripts/thread-cert/Cert_5_1_07_MaxChildCount.py

@@ -38,6 +38,7 @@ SED1 = 7
 
 
 class Cert_5_1_07_MaxChildCount(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_1_08_RouterAttachConnectivity.py

@@ -41,6 +41,7 @@ ROUTER4 = 5
 
 
 class Cert_5_1_08_RouterAttachConnectivity(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -135,20 +136,15 @@ class Cert_5_1_08_RouterAttachConnectivity(unittest.TestCase):
         self.assertEqual(0, scan_mask_tlv.end_device)
 
         # 3 - Router2, Router3
-        msg = router2_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router2_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[ROUTER4])
 
-        msg = router3_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router3_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[ROUTER4])
 
         # 4 - Router4
         msg = router4_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_REQUEST
-        )
+            mle.CommandType.CHILD_ID_REQUEST)
         msg.assertSentToNode(self.nodes[ROUTER3])
         msg.assertMleMessageContainsTlv(mle.Response)
         msg.assertMleMessageContainsTlv(mle.LinkLayerFrameCounter)

tests/scripts/thread-cert/Cert_5_1_09_REEDAttachConnectivity.py

@@ -41,6 +41,7 @@ ROUTER2 = 5
 
 
 class Cert_5_1_09_REEDAttachConnectivity(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -161,8 +162,7 @@ class Cert_5_1_09_REEDAttachConnectivity(unittest.TestCase):
 
         # 6 - Router2
         msg = router2_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_REQUEST
-        )
+            mle.CommandType.CHILD_ID_REQUEST)
         msg.assertSentToNode(self.nodes[REED1])
         msg.assertMleMessageContainsTlv(mle.Response)
         msg.assertMleMessageContainsTlv(mle.LinkLayerFrameCounter)

tests/scripts/thread-cert/Cert_5_1_10_RouterAttachLinkQuality.py

@@ -40,6 +40,7 @@ ROUTER3 = 4
 
 
 class Cert_5_1_10_RouterAttachLinkQuality(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -63,9 +64,8 @@ class Cert_5_1_10_RouterAttachLinkQuality(unittest.TestCase):
         self.nodes[ROUTER2].set_panid(0xface)
         self.nodes[ROUTER2].set_mode('rsdn')
         self.nodes[ROUTER2].add_whitelist(self.nodes[LEADER].get_addr64())
-        self.nodes[ROUTER2].add_whitelist(
-            self.nodes[ROUTER3].get_addr64(), rssi=-85
-        )
+        self.nodes[ROUTER2].add_whitelist(self.nodes[ROUTER3].get_addr64(),
+                                          rssi=-85)
         self.nodes[ROUTER2].enable_whitelist()
         self.nodes[ROUTER2].set_router_selection_jitter(1)
 
@@ -142,20 +142,15 @@ class Cert_5_1_10_RouterAttachLinkQuality(unittest.TestCase):
         msg.assertMleMessageContainsTlv(mle.Version)
 
         # 4 - Router1, Router2
-        msg = router1_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router1_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[ROUTER3])
 
-        msg = router2_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router2_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[ROUTER3])
 
         # 5 - Router3
         msg = router3_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_REQUEST
-        )
+            mle.CommandType.CHILD_ID_REQUEST)
         msg.assertSentToNode(self.nodes[ROUTER1])
         msg.assertMleMessageContainsTlv(mle.Response)
         msg.assertMleMessageContainsTlv(mle.LinkLayerFrameCounter)

tests/scripts/thread-cert/Cert_5_1_11_REEDAttachLinkQuality.py

@@ -40,6 +40,7 @@ ROUTER1 = 4
 
 
 class Cert_5_1_11_REEDAttachLinkQuality(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -63,9 +64,8 @@ class Cert_5_1_11_REEDAttachLinkQuality(unittest.TestCase):
         self.nodes[ROUTER2].set_panid(0xface)
         self.nodes[ROUTER2].set_mode('rsdn')
         self.nodes[ROUTER2].add_whitelist(self.nodes[LEADER].get_addr64())
-        self.nodes[ROUTER2].add_whitelist(
-            self.nodes[ROUTER1].get_addr64(), rssi=-85
-        )
+        self.nodes[ROUTER2].add_whitelist(self.nodes[ROUTER1].get_addr64(),
+                                          rssi=-85)
         self.nodes[ROUTER2].enable_whitelist()
         self.nodes[ROUTER2].set_router_selection_jitter(1)
 
@@ -141,9 +141,7 @@ class Cert_5_1_11_REEDAttachLinkQuality(unittest.TestCase):
         self.assertEqual(0, scan_mask_tlv.end_device)
 
         # 4 - Router2
-        msg = router2_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router2_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[ROUTER1])
 
         # 5 - Router1
@@ -161,8 +159,7 @@ class Cert_5_1_11_REEDAttachLinkQuality(unittest.TestCase):
 
         # 6 - Router1
         msg = router1_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_REQUEST
-        )
+            mle.CommandType.CHILD_ID_REQUEST)
         msg.assertMleMessageContainsTlv(mle.LinkLayerFrameCounter)
         msg.assertMleMessageContainsTlv(mle.Mode)
         msg.assertMleMessageContainsTlv(mle.Response)

tests/scripts/thread-cert/Cert_5_1_12_NewRouterNeighborSync.py

@@ -39,6 +39,7 @@ ROUTER2 = 3
 
 
 class Cert_5_1_12_NewRouterSync(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -70,21 +71,17 @@ class Cert_5_1_12_NewRouterSync(unittest.TestCase):
             n.destroy()
         self.simulator.stop()
 
-    def verify_step_4(
-        self, router1_messages, router2_messages, req_receiver, accept_receiver
-    ):
+    def verify_step_4(self, router1_messages, router2_messages, req_receiver,
+                      accept_receiver):
         if router2_messages.contains_mle_message(
-            mle.CommandType.LINK_REQUEST
-        ) and (
-            router1_messages.contains_mle_message(mle.CommandType.LINK_ACCEPT)
-            or router1_messages.contains_mle_message(
-                mle.CommandType.LINK_ACCEPT_AND_REQUEST
-            )
-        ):
+                mle.CommandType.LINK_REQUEST) and (
+                    router1_messages.contains_mle_message(
+                        mle.CommandType.LINK_ACCEPT) or
+                    router1_messages.contains_mle_message(
+                        mle.CommandType.LINK_ACCEPT_AND_REQUEST)):
 
             msg = router2_messages.next_mle_message(
-                mle.CommandType.LINK_REQUEST
-            )
+                mle.CommandType.LINK_REQUEST)
 
             msg.assertSentToNode(self.nodes[req_receiver])
             msg.assertMleMessageContainsTlv(mle.SourceAddress)
@@ -154,13 +151,10 @@ class Cert_5_1_12_NewRouterSync(unittest.TestCase):
 
         # 4 - Router1, Router2
         self.assertTrue(
-            self.verify_step_4(
-                router1_messages, router2_messages, ROUTER1, ROUTER2
-            )
-            or self.verify_step_4(
-                router2_messages, router1_messages, ROUTER2, ROUTER1
-            )
-        )
+            self.verify_step_4(router1_messages, router2_messages, ROUTER1,
+                               ROUTER2) or
+            self.verify_step_4(router2_messages, router1_messages, ROUTER2,
+                               ROUTER1))
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_5_1_13_RouterReset.py

@@ -38,6 +38,7 @@ ROUTER = 2
 
 
 class Cert_5_1_13_RouterReset(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_2_01_REEDAttach.py

@@ -34,7 +34,6 @@ import mle
 import config
 import command
 
-
 LEADER = 1
 DUT_ROUTER1 = 2
 REED1 = 3
@@ -42,6 +41,7 @@ MED1 = 4
 
 
 class Cert_5_2_01_REEDAttach(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -102,16 +102,13 @@ class Cert_5_2_01_REEDAttach(unittest.TestCase):
 
         # 3 DUT_ROUTER1: Verify MLE Parent Response
         router1_messages = self.simulator.get_messages_sent_by(DUT_ROUTER1)
-        msg = router1_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router1_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[REED1])
         command.check_parent_response(msg)
 
         # 4 DUT_ROUTER1: Verify MLE Child ID Response
         msg = router1_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        )
+            mle.CommandType.CHILD_ID_RESPONSE)
         msg.assertSentToNode(self.nodes[REED1])
         command.check_child_id_response(msg)
 
@@ -126,8 +123,7 @@ class Cert_5_2_01_REEDAttach(unittest.TestCase):
         reed1_messages = self.simulator.get_messages_sent_by(REED1)
         msg = reed1_messages.next_coap_message('0.02')
         reed1_ipv6_address = (
-            msg.ipv6_packet.ipv6_header.source_address.compressed
-        )
+            msg.ipv6_packet.ipv6_header.source_address.compressed)
         msg.assertSentToNode(self.nodes[DUT_ROUTER1])
         msg.assertCoapMessageRequestUriPath('/a/as')
 

tests/scripts/thread-cert/Cert_5_2_03_LeaderReject2Hops.py

@@ -41,14 +41,13 @@ ROUTER_32 = 33
 
 
 class Cert_5_2_3_LeaderReject2Hops(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
         self.nodes = {}
 
-        self.nodes[DUT_LEADER] = node.Node(
-            DUT_LEADER, simulator=self.simulator
-        )
+        self.nodes[DUT_LEADER] = node.Node(DUT_LEADER, simulator=self.simulator)
         self.nodes[DUT_LEADER].set_panid(0xface)
         self.nodes[DUT_LEADER].set_mode('rsdn')
         self.nodes[DUT_LEADER].enable_whitelist()
@@ -126,9 +125,8 @@ class Cert_5_2_3_LeaderReject2Hops(unittest.TestCase):
         msg.assertCoapMessageContainsTlv(network_layer.Status)
 
         status_tlv = msg.get_coap_message_tlv(network_layer.Status)
-        self.assertEqual(
-            network_layer.StatusValues.NO_ADDRESS_AVAILABLE, status_tlv.status
-        )
+        self.assertEqual(network_layer.StatusValues.NO_ADDRESS_AVAILABLE,
+                         status_tlv.status)
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_5_2_04_REEDUpgrade.py

@@ -46,6 +46,7 @@ ROUTER_SELECTION_JITTER = 1
 
 
 class Cert_5_2_4_REEDUpgrade(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -115,9 +116,8 @@ class Cert_5_2_4_REEDUpgrade(unittest.TestCase):
         msg.assertMleMessageDoesNotContainTlv(mle.Route64)
 
         # 4 Wait for DUT_REED to send the second packet.
-        self.simulator.go(
-            REED_ADVERTISEMENT_INTERVAL + REED_ADVERTISEMENT_MAX_JITTER
-        )
+        self.simulator.go(REED_ADVERTISEMENT_INTERVAL +
+                          REED_ADVERTISEMENT_MAX_JITTER)
 
         # 5 DUT_REED: Verify the second MLE Advertisement.
         reed_messages = self.simulator.get_messages_sent_by(DUT_REED)
@@ -166,10 +166,8 @@ class Cert_5_2_4_REEDUpgrade(unittest.TestCase):
         # Leader.
         mleid = None
         for addr in self.nodes[LEADER].get_addrs():
-            if (
-                addr.find(MESH_LOCAL_PREFIX) != -1
-                and addr.find(ROUTING_LACATOR) == -1
-            ):
+            if (addr.find(MESH_LOCAL_PREFIX) != -1 and
+                    addr.find(ROUTING_LACATOR) == -1):
                 mleid = addr
                 break
 

tests/scripts/thread-cert/Cert_5_2_05_AddressQuery.py

@@ -42,6 +42,7 @@ ROUTER_SELECTION_JITTER = 1
 
 
 class Cert_5_2_5_AddressQuery(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -126,9 +127,7 @@ class Cert_5_2_5_AddressQuery(unittest.TestCase):
 
         # 6. Verify DUT_REED would send Address Notification when ping to its
         # ML-EID.
-        mleid = self.nodes[DUT_REED].get_ip6_address(
-            config.ADDRESS_TYPE.ML_EID
-        )
+        mleid = self.nodes[DUT_REED].get_ip6_address(config.ADDRESS_TYPE.ML_EID)
         self.assertTrue(self.nodes[ED1].ping(mleid))
 
         # Wait for sniffer collecting packets
@@ -136,17 +135,15 @@ class Cert_5_2_5_AddressQuery(unittest.TestCase):
 
         reed_messages = self.simulator.get_messages_sent_by(DUT_REED)
         msg = reed_messages.next_coap_message('0.02', '/a/an')
-        command.check_address_notification(
-            msg, self.nodes[DUT_REED], self.nodes[LEADER]
-        )
+        command.check_address_notification(msg, self.nodes[DUT_REED],
+                                           self.nodes[LEADER])
 
         # 7 & 8. Verify DUT_REED would send Address Notification when ping to
         # its 2001::EID and 2002::EID.
         flag2001 = 0
         flag2002 = 0
         for global_address in self.nodes[DUT_REED].get_ip6_address(
-            config.ADDRESS_TYPE.GLOBAL
-        ):
+                config.ADDRESS_TYPE.GLOBAL):
             if global_address[0:4] == '2001':
                 flag2001 += 1
             elif global_address[0:4] == '2002':
@@ -160,9 +157,8 @@ class Cert_5_2_5_AddressQuery(unittest.TestCase):
 
             reed_messages = self.simulator.get_messages_sent_by(DUT_REED)
             msg = reed_messages.next_coap_message('0.02', '/a/an')
-            command.check_address_notification(
-                msg, self.nodes[DUT_REED], self.nodes[LEADER]
-            )
+            command.check_address_notification(msg, self.nodes[DUT_REED],
+                                               self.nodes[LEADER])
 
         assert flag2001 == 1, "Error: Expecting address 2001::EID not appear."
         assert flag2002 == 1, "Error: Expecting address 2002::EID not appear."

tests/scripts/thread-cert/Cert_5_2_06_RouterDowngrade.py

@@ -41,6 +41,7 @@ ROUTER24 = 24
 
 
 class Cert_5_2_06_RouterDowngrade(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -99,8 +100,7 @@ class Cert_5_2_06_RouterDowngrade(unittest.TestCase):
 
         # 4 & 5
         router1_rloc = self.nodes[DUT_ROUTER1].get_ip6_address(
-            config.ADDRESS_TYPE.RLOC
-        )
+            config.ADDRESS_TYPE.RLOC)
         self.assertTrue(self.nodes[LEADER].ping(router1_rloc))
 
 

tests/scripts/thread-cert/Cert_5_2_07_REEDSynchronization.py

@@ -43,6 +43,7 @@ MLE_MIN_LINKS = 3
 
 
 class Cert_5_2_7_REEDSynchronization(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -74,9 +75,8 @@ class Cert_5_2_7_REEDSynchronization(unittest.TestCase):
 
         # 2. DUT_REED: Attach to network. Verify it didn't send an Address Solicit Request.
         # Avoid DUT_REED attach to DUT_ROUTER1.
-        self.nodes[DUT_REED].add_whitelist(
-            self.nodes[DUT_ROUTER1].get_addr64(), config.RSSI['LINK_QULITY_1']
-        )
+        self.nodes[DUT_REED].add_whitelist(self.nodes[DUT_ROUTER1].get_addr64(),
+                                           config.RSSI['LINK_QULITY_1'])
 
         self.nodes[DUT_REED].start()
         self.simulator.go(config.MAX_ADVERTISEMENT_INTERVAL)
@@ -85,9 +85,8 @@ class Cert_5_2_7_REEDSynchronization(unittest.TestCase):
         # The DUT_REED must not send a coap message here.
         reed_messages = self.simulator.get_messages_sent_by(DUT_REED)
         msg = reed_messages.does_not_contain_coap_message()
-        assert (
-            msg is True
-        ), "Error: The DUT_REED sent an Address Solicit Request"
+        assert (msg is
+                True), "Error: The DUT_REED sent an Address Solicit Request"
 
         # 3. DUT_REED: Verify sent a Link Request to at least 3 neighboring
         # Routers.
@@ -104,29 +103,24 @@ class Cert_5_2_7_REEDSynchronization(unittest.TestCase):
 
         link_accept_count = 0
         destination_link_local = self.nodes[DUT_REED].get_ip6_address(
-            config.ADDRESS_TYPE.LINK_LOCAL
-        )
+            config.ADDRESS_TYPE.LINK_LOCAL)
 
         for i in range(1, DUT_REED):
             dut_messages = self.simulator.get_messages_sent_by(i)
 
             while True:
-                msg = dut_messages.next_mle_message(
-                    mle.CommandType.LINK_ACCEPT, False
-                )
+                msg = dut_messages.next_mle_message(mle.CommandType.LINK_ACCEPT,
+                                                    False)
                 if msg is None:
                     break
-                if (
-                    ipv6.ip_address(destination_link_local)
-                    == msg.ipv6_packet.ipv6_header.destination_address
-                ):
+                if (ipv6.ip_address(destination_link_local) ==
+                        msg.ipv6_packet.ipv6_header.destination_address):
                     command.check_link_accept(msg, self.nodes[DUT_REED])
                     link_accept_count += 1
                     break
 
-        assert (
-            link_accept_count >= MLE_MIN_LINKS
-        ) is True, "Error: too few Link Accept sent to DUT_REED"
+        assert (link_accept_count >= MLE_MIN_LINKS
+               ) is True, "Error: too few Link Accept sent to DUT_REED"
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_5_3_01_LinkLocal.py

@@ -37,6 +37,7 @@ DUT_ROUTER1 = 2
 
 
 class Cert_5_3_1_LinkLocal(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -69,8 +70,7 @@ class Cert_5_3_1_LinkLocal(unittest.TestCase):
 
         # 2 & 3
         link_local = self.nodes[DUT_ROUTER1].get_ip6_address(
-            config.ADDRESS_TYPE.LINK_LOCAL
-        )
+            config.ADDRESS_TYPE.LINK_LOCAL)
         self.assertTrue(self.nodes[LEADER].ping(link_local, size=256))
         self.assertTrue(self.nodes[LEADER].ping(link_local))
 
@@ -83,11 +83,8 @@ class Cert_5_3_1_LinkLocal(unittest.TestCase):
         self.assertTrue(self.nodes[LEADER].ping('ff02::2'))
 
         # 8
-        self.assertTrue(
-            self.nodes[LEADER].ping(
-                config.LINK_LOCAL_All_THREAD_NODES_MULTICAST_ADDRESS
-            )
-        )
+        self.assertTrue(self.nodes[LEADER].ping(
+            config.LINK_LOCAL_All_THREAD_NODES_MULTICAST_ADDRESS))
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_5_3_02_RealmLocal.py

@@ -39,6 +39,7 @@ SED1 = 4
 
 
 class Cert_5_3_2_RealmLocal(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -97,15 +98,14 @@ class Cert_5_3_2_RealmLocal(unittest.TestCase):
 
         # 2 & 3
         mleid = self.nodes[DUT_ROUTER2].get_ip6_address(
-            config.ADDRESS_TYPE.ML_EID
-        )
+            config.ADDRESS_TYPE.ML_EID)
         self.assertTrue(self.nodes[LEADER].ping(mleid, size=256))
         self.assertTrue(self.nodes[LEADER].ping(mleid))
 
         # 4 & 5
-        self.assertTrue(
-            self.nodes[LEADER].ping('ff03::1', num_responses=2, size=256)
-        )
+        self.assertTrue(self.nodes[LEADER].ping('ff03::1',
+                                                num_responses=2,
+                                                size=256))
         sed_messages = self.simulator.get_messages_sent_by(SED1)
         self.assertFalse(sed_messages.contains_icmp_message())
 
@@ -114,9 +114,9 @@ class Cert_5_3_2_RealmLocal(unittest.TestCase):
         self.assertFalse(sed_messages.contains_icmp_message())
 
         # 6 & 7
-        self.assertTrue(
-            self.nodes[LEADER].ping('ff03::2', num_responses=2, size=256)
-        )
+        self.assertTrue(self.nodes[LEADER].ping('ff03::2',
+                                                num_responses=2,
+                                                size=256))
         sed_messages = self.simulator.get_messages_sent_by(SED1)
         self.assertFalse(sed_messages.contains_icmp_message())
 
@@ -125,23 +125,19 @@ class Cert_5_3_2_RealmLocal(unittest.TestCase):
         self.assertFalse(sed_messages.contains_icmp_message())
 
         # 8
-        self.assertTrue(
-            self.nodes[LEADER].ping(
-                config.REALM_LOCAL_All_THREAD_NODES_MULTICAST_ADDRESS,
-                num_responses=3,
-                size=256,
-            )
-        )
+        self.assertTrue(self.nodes[LEADER].ping(
+            config.REALM_LOCAL_All_THREAD_NODES_MULTICAST_ADDRESS,
+            num_responses=3,
+            size=256,
+        ))
         self.simulator.go(2)
         sed_messages = self.simulator.get_messages_sent_by(SED1)
         self.assertTrue(sed_messages.contains_icmp_message())
 
-        self.assertTrue(
-            self.nodes[LEADER].ping(
-                config.REALM_LOCAL_All_THREAD_NODES_MULTICAST_ADDRESS,
-                num_responses=3,
-            )
-        )
+        self.assertTrue(self.nodes[LEADER].ping(
+            config.REALM_LOCAL_All_THREAD_NODES_MULTICAST_ADDRESS,
+            num_responses=3,
+        ))
         self.simulator.go(2)
         sed_messages = self.simulator.get_messages_sent_by(SED1)
         self.assertTrue(sed_messages.contains_icmp_message())

tests/scripts/thread-cert/Cert_5_3_03_AddressQuery.py

@@ -42,6 +42,7 @@ MED1_TIMEOUT = 3
 
 
 class Cert_5_3_3_AddressQuery(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -112,8 +113,7 @@ class Cert_5_3_3_AddressQuery(unittest.TestCase):
         dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
 
         router3_mleid = self.nodes[ROUTER3].get_ip6_address(
-            config.ADDRESS_TYPE.ML_EID
-        )
+            config.ADDRESS_TYPE.ML_EID)
         self.assertTrue(self.nodes[MED1].ping(router3_mleid))
 
         # Verify DUT_ROUTER2 sent an Address Query Request to the Realm local
@@ -136,16 +136,14 @@ class Cert_5_3_3_AddressQuery(unittest.TestCase):
         dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
 
         med1_mleid = self.nodes[MED1].get_ip6_address(
-            config.ADDRESS_TYPE.ML_EID
-        )
+            config.ADDRESS_TYPE.ML_EID)
         self.assertTrue(self.nodes[ROUTER1].ping(med1_mleid))
 
         # Verify DUT_ROUTER2 responded with an Address Notification.
         dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
         msg = dut_messages.next_coap_message('0.02', '/a/an')
-        command.check_address_notification(
-            msg, self.nodes[DUT_ROUTER2], self.nodes[ROUTER1]
-        )
+        command.check_address_notification(msg, self.nodes[DUT_ROUTER2],
+                                           self.nodes[ROUTER1])
 
         # 4
         # Wait the finish of address resolution traffic triggerred by previous

tests/scripts/thread-cert/Cert_5_3_04_AddressMapCache.py

@@ -45,6 +45,7 @@ MTDS = [SED1, ED1, ED2, ED3, ED4]
 
 
 class Cert_5_3_4_AddressMapCache(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -112,8 +113,7 @@ class Cert_5_3_4_AddressMapCache(unittest.TestCase):
         # 2
         for ED in [ED1, ED2, ED3, ED4]:
             ed_mleid = self.nodes[ED].get_ip6_address(
-                config.ADDRESS_TYPE.ML_EID
-            )
+                config.ADDRESS_TYPE.ML_EID)
             self.assertTrue(self.nodes[SED1].ping(ed_mleid))
             self.simulator.go(5)
 
@@ -134,17 +134,15 @@ class Cert_5_3_4_AddressMapCache(unittest.TestCase):
 
         for ED in [ED1, ED2, ED3, ED4]:
             ed_mleid = self.nodes[ED].get_ip6_address(
-                config.ADDRESS_TYPE.ML_EID
-            )
+                config.ADDRESS_TYPE.ML_EID)
             self.assertTrue(self.nodes[SED1].ping(ed_mleid))
             self.simulator.go(5)
 
             # Verify DUT_ROUTER1 didn't generate an Address Query Request.
             dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER1)
             msg = dut_messages.next_coap_message('0.02', '/a/aq', False)
-            assert (
-                msg is None
-            ), "Error: The DUT sent an unexpected Address Query Request"
+            assert (msg is None
+                   ), "Error: The DUT sent an unexpected Address Query Request"
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_5_3_05_RoutingLinkQuality.py

@@ -40,6 +40,7 @@ ROUTER3 = 4
 
 
 class Cert_5_3_5_RoutingLinkQuality(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -95,8 +96,7 @@ class Cert_5_3_5_RoutingLinkQuality(unittest.TestCase):
 
         # 2 & 3
         leader_rloc = self.nodes[LEADER].get_ip6_address(
-            config.ADDRESS_TYPE.RLOC
-        )
+            config.ADDRESS_TYPE.RLOC)
 
         # Verify the ICMPv6 Echo Request took the least cost path.
         self.assertTrue(self.nodes[ROUTER3].ping(leader_rloc))
@@ -104,12 +104,10 @@ class Cert_5_3_5_RoutingLinkQuality(unittest.TestCase):
         command.check_icmp_path(self.simulator, path, self.nodes)
 
         # 4 & 5
-        self.nodes[LEADER].add_whitelist(
-            self.nodes[DUT_ROUTER1].get_addr64(), config.RSSI['LINK_QULITY_1']
-        )
-        self.nodes[DUT_ROUTER1].add_whitelist(
-            self.nodes[LEADER].get_addr64(), config.RSSI['LINK_QULITY_1']
-        )
+        self.nodes[LEADER].add_whitelist(self.nodes[DUT_ROUTER1].get_addr64(),
+                                         config.RSSI['LINK_QULITY_1'])
+        self.nodes[DUT_ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64(),
+                                              config.RSSI['LINK_QULITY_1'])
         self.simulator.go(3 * config.MAX_ADVERTISEMENT_INTERVAL)
 
         # Verify the ICMPv6 Echo Request took the longer path because it cost
@@ -119,12 +117,10 @@ class Cert_5_3_5_RoutingLinkQuality(unittest.TestCase):
         command.check_icmp_path(self.simulator, path, self.nodes)
 
         # 6 & 7
-        self.nodes[LEADER].add_whitelist(
-            self.nodes[DUT_ROUTER1].get_addr64(), config.RSSI['LINK_QULITY_2']
-        )
-        self.nodes[DUT_ROUTER1].add_whitelist(
-            self.nodes[LEADER].get_addr64(), config.RSSI['LINK_QULITY_2']
-        )
+        self.nodes[LEADER].add_whitelist(self.nodes[DUT_ROUTER1].get_addr64(),
+                                         config.RSSI['LINK_QULITY_2'])
+        self.nodes[DUT_ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64(),
+                                              config.RSSI['LINK_QULITY_2'])
         self.simulator.go(3 * config.MAX_ADVERTISEMENT_INTERVAL)
 
         # Verify the direct neighbor would be prioritized when there are two
@@ -134,18 +130,15 @@ class Cert_5_3_5_RoutingLinkQuality(unittest.TestCase):
         command.check_icmp_path(self.simulator, path, self.nodes)
 
         # 8 & 9
-        self.nodes[LEADER].add_whitelist(
-            self.nodes[DUT_ROUTER1].get_addr64(), config.RSSI['LINK_QULITY_0']
-        )
-        self.nodes[DUT_ROUTER1].add_whitelist(
-            self.nodes[LEADER].get_addr64(), config.RSSI['LINK_QULITY_0']
-        )
+        self.nodes[LEADER].add_whitelist(self.nodes[DUT_ROUTER1].get_addr64(),
+                                         config.RSSI['LINK_QULITY_0'])
+        self.nodes[DUT_ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64(),
+                                              config.RSSI['LINK_QULITY_0'])
         self.simulator.go(3 * config.MAX_ADVERTISEMENT_INTERVAL)
 
         # Verify the ICMPv6 Echo Request took the longer path.
         leader_rloc = self.nodes[LEADER].get_ip6_address(
-            config.ADDRESS_TYPE.RLOC
-        )
+            config.ADDRESS_TYPE.RLOC)
         self.assertTrue(self.nodes[ROUTER3].ping(leader_rloc))
         path = [ROUTER3, DUT_ROUTER1, ROUTER2, LEADER]
         command.check_icmp_path(self.simulator, path, self.nodes)

tests/scripts/thread-cert/Cert_5_3_06_RouterIdMask.py

@@ -40,6 +40,7 @@ ROUTER2 = 3
 
 
 class Cert_5_3_6_RouterIdMask(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -111,8 +112,7 @@ class Cert_5_3_6_RouterIdMask(unittest.TestCase):
 
             leader_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
             msg = leader_messages.last_mle_message(
-                mle.CommandType.ADVERTISEMENT, False
-            )
+                mle.CommandType.ADVERTISEMENT, False)
             if msg is None:
                 continue
 
@@ -123,9 +123,8 @@ class Cert_5_3_6_RouterIdMask(unittest.TestCase):
                 break
         self.assertTrue(routing_cost == 0)
 
-        self.simulator.go(
-            config.INFINITE_COST_TIMEOUT + config.MAX_ADVERTISEMENT_INTERVAL
-        )
+        self.simulator.go(config.INFINITE_COST_TIMEOUT +
+                          config.MAX_ADVERTISEMENT_INTERVAL)
         leader_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
         msg = leader_messages.last_mle_message(mle.CommandType.ADVERTISEMENT)
         self.assertFalse(command.check_id_set(msg, router2_id))
@@ -150,16 +149,14 @@ class Cert_5_3_6_RouterIdMask(unittest.TestCase):
         router1_id = self.nodes[ROUTER1].get_router_id()
         router2_id = self.nodes[ROUTER2].get_router_id()
 
-        self.simulator.go(
-            config.MAX_NEIGHBOR_AGE + config.MAX_ADVERTISEMENT_INTERVAL
-        )
+        self.simulator.go(config.MAX_NEIGHBOR_AGE +
+                          config.MAX_ADVERTISEMENT_INTERVAL)
         leader_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
         msg = leader_messages.last_mle_message(mle.CommandType.ADVERTISEMENT)
         self.assertEqual(command.get_routing_cost(msg, router1_id), 0)
 
-        self.simulator.go(
-            config.INFINITE_COST_TIMEOUT + config.MAX_ADVERTISEMENT_INTERVAL
-        )
+        self.simulator.go(config.INFINITE_COST_TIMEOUT +
+                          config.MAX_ADVERTISEMENT_INTERVAL)
         leader_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
         msg = leader_messages.last_mle_message(mle.CommandType.ADVERTISEMENT)
         self.assertFalse(command.check_id_set(msg, router1_id))

tests/scripts/thread-cert/Cert_5_3_06b_RouterIdMask.py

@@ -38,6 +38,7 @@ ROUTER2 = 3
 
 
 class Cert_5_3_6_RouterIdMask(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_3_07_DuplicateAddress.py

@@ -45,6 +45,7 @@ MTDS = [MED1, SED1, MED3]
 
 
 class Cert_5_3_7_DuplicateAddress(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -139,9 +140,8 @@ class Cert_5_3_7_DuplicateAddress(unittest.TestCase):
         # address.
         dut_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
         msg = dut_messages.next_coap_message('0.02', '/a/aq')
-        command.check_address_query(
-            msg, self.nodes[DUT_LEADER], config.REALM_LOCAL_ALL_ROUTERS_ADDRESS
-        )
+        command.check_address_query(msg, self.nodes[DUT_LEADER],
+                                    config.REALM_LOCAL_ALL_ROUTERS_ADDRESS)
 
         # 5 & 6
         # Verify DUT_LEADER sent an Address Error Notification to the Realm
@@ -150,8 +150,7 @@ class Cert_5_3_7_DuplicateAddress(unittest.TestCase):
         dut_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
         msg = dut_messages.next_coap_message('0.02', '/a/ae')
         command.check_address_error_notification(
-            msg, self.nodes[DUT_LEADER], config.REALM_LOCAL_ALL_ROUTERS_ADDRESS
-        )
+            msg, self.nodes[DUT_LEADER], config.REALM_LOCAL_ALL_ROUTERS_ADDRESS)
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_5_3_08_ChildAddressSet.py

@@ -44,6 +44,7 @@ MTDS = [MED1, MED2]
 
 
 class Cert_5_3_8_ChildAddressSet(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -109,8 +110,7 @@ class Cert_5_3_8_ChildAddressSet(unittest.TestCase):
 
         # 4 MED1: MED1 send an ICMPv6 Echo Request to the MED2 ML-EID
         med2_ml_eid = self.nodes[MED2].get_ip6_address(
-            config.ADDRESS_TYPE.ML_EID
-        )
+            config.ADDRESS_TYPE.ML_EID)
         self.assertTrue(med2_ml_eid is not None)
         self.assertTrue(self.nodes[MED1].ping(med2_ml_eid))
 
@@ -127,9 +127,8 @@ class Cert_5_3_8_ChildAddressSet(unittest.TestCase):
         # Verify MED2 sent an ICMPv6 Echo Reply
         med2_messages = self.simulator.get_messages_sent_by(MED2)
         msg = med2_messages.get_icmp_message(ipv6.ICMP_ECHO_RESPONSE)
-        assert (
-            msg is not None
-        ), "Error: The MED2 didn't send ICMPv6 Echo Reply to MED1"
+        assert (msg is not None
+               ), "Error: The MED2 didn't send ICMPv6 Echo Reply to MED1"
 
         # 5 MED1: MED1 send an ICMPv6 Echo Request to the MED2 2001::GUA
         addr = self.nodes[MED2].get_addr("2001::/64")
@@ -149,9 +148,8 @@ class Cert_5_3_8_ChildAddressSet(unittest.TestCase):
         # Verify MED2 sent an ICMPv6 Echo Reply
         med2_messages = self.simulator.get_messages_sent_by(MED2)
         msg = med2_messages.get_icmp_message(ipv6.ICMP_ECHO_RESPONSE)
-        assert (
-            msg is not None
-        ), "Error: The MED2 didn't send ICMPv6 Echo Reply to MED1"
+        assert (msg is not None
+               ), "Error: The MED2 didn't send ICMPv6 Echo Reply to MED1"
 
         # 6 MED1: MED1 send an ICMPv6 Echo Request to the MED2 2002::GUA
         addr = self.nodes[MED2].get_addr("2002::/64")
@@ -171,9 +169,8 @@ class Cert_5_3_8_ChildAddressSet(unittest.TestCase):
         # Verify MED2 sent an ICMPv6 Echo Reply
         med2_messages = self.simulator.get_messages_sent_by(MED2)
         msg = med2_messages.get_icmp_message(ipv6.ICMP_ECHO_RESPONSE)
-        assert (
-            msg is not None
-        ), "Error: The MED2 didn't send ICMPv6 Echo Reply to MED1"
+        assert (msg is not None
+               ), "Error: The MED2 didn't send ICMPv6 Echo Reply to MED1"
 
         # 7 MED1: MED1 send an ICMPv6 Echo Request to the MED2 2003::GUA
         addr = self.nodes[MED2].get_addr("2003::/64")
@@ -193,9 +190,8 @@ class Cert_5_3_8_ChildAddressSet(unittest.TestCase):
         # Verify MED2 sent an ICMPv6 Echo Reply
         med2_messages = self.simulator.get_messages_sent_by(MED2)
         msg = med2_messages.get_icmp_message(ipv6.ICMP_ECHO_RESPONSE)
-        assert (
-            msg is not None
-        ), "Error: The MED2 didn't send ICMPv6 Echo Reply to MED1"
+        assert (msg is not None
+               ), "Error: The MED2 didn't send ICMPv6 Echo Reply to MED1"
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_5_3_09_AddressQuery.py

@@ -43,6 +43,7 @@ SED1 = 5
 
 
 class Cert_5_3_09_AddressQuery(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -130,8 +131,7 @@ class Cert_5_3_09_AddressQuery(unittest.TestCase):
         dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
         msg = dut_router2_messages.next_coap_message('0.02', '/a/aq')
         msg.assertSentToDestinationAddress(
-            config.REALM_LOCAL_ALL_ROUTERS_ADDRESS
-        )
+            config.REALM_LOCAL_ALL_ROUTERS_ADDRESS)
         command.check_address_query(
             msg,
             self.nodes[DUT_ROUTER2],
@@ -157,9 +157,8 @@ class Cert_5_3_09_AddressQuery(unittest.TestCase):
         # Verify DUT_ROUTER2 sent an Address Notification message
         dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
         msg = dut_router2_messages.next_coap_message('0.02', '/a/an')
-        command.check_address_notification(
-            msg, self.nodes[DUT_ROUTER2], self.nodes[ROUTER1]
-        )
+        command.check_address_notification(msg, self.nodes[DUT_ROUTER2],
+                                           self.nodes[ROUTER1])
 
         # 5 SED1: SED1 sends an ICMPv6 Echo Request to the ROUTER3 using GUA
         # 2001:: address
@@ -178,8 +177,7 @@ class Cert_5_3_09_AddressQuery(unittest.TestCase):
 
         # Verify DUT_ROUTER2 forwarded the ICMPv6 Echo Reply to SED1
         msg = dut_router2_messages_temp.get_icmp_message(
-            ipv6.ICMP_ECHO_RESPONSE
-        )
+            ipv6.ICMP_ECHO_RESPONSE)
         assert (
             msg is not None
         ), "Error: The DUT_ROUTER2 didn't forward ICMPv6 Echo Reply to SED1"
@@ -197,8 +195,7 @@ class Cert_5_3_09_AddressQuery(unittest.TestCase):
         dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
         msg = dut_router2_messages.next_coap_message('0.02', '/a/aq')
         msg.assertSentToDestinationAddress(
-            config.REALM_LOCAL_ALL_ROUTERS_ADDRESS
-        )
+            config.REALM_LOCAL_ALL_ROUTERS_ADDRESS)
 
         # 7 SED1: Power off SED1 and wait to allow DUT_ROUTER2 to timeout the
         # child

tests/scripts/thread-cert/Cert_5_3_10_AddressQuery.py

@@ -43,6 +43,7 @@ MED1 = 5
 
 
 class Cert_5_3_10_AddressQuery(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -158,9 +159,8 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
         # Verify DUT_ROUTER2 sent an Address Notification message
         dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
         msg = dut_router2_messages.next_coap_message('0.02', '/a/an')
-        command.check_address_notification(
-            msg, self.nodes[DUT_ROUTER2], self.nodes[BR]
-        )
+        command.check_address_notification(msg, self.nodes[DUT_ROUTER2],
+                                           self.nodes[BR])
 
         # 5 MED1: MED1 sends an ICMPv6 Echo Request to ROUTER1 using GUA 2003::
         # address
@@ -181,8 +181,7 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
 
         # Verify DUT_ROUTER2 forwarded ICMPv6 Echo Reply to MED1
         msg = dut_router2_messages_temp.get_icmp_message(
-            ipv6.ICMP_ECHO_RESPONSE
-        )
+            ipv6.ICMP_ECHO_RESPONSE)
         assert (
             msg is not None
         ), "Error: The DUT_ROUTER2 didn't forward ICMPv6 Echo Reply to MED1"
@@ -199,16 +198,14 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
 
         # Verify the DUT_ROUTER2 has removed all entries based on ROUTER1's
         # Router ID
-        command.check_router_id_cached(
-            self.nodes[DUT_ROUTER2], router1_id, False
-        )
+        command.check_router_id_cached(self.nodes[DUT_ROUTER2], router1_id,
+                                       False)
 
         # Verify DUT_ROUTER2 sent an Address Query Request
         dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
         msg = dut_router2_messages.next_coap_message('0.02', '/a/aq')
         msg.assertSentToDestinationAddress(
-            config.REALM_LOCAL_ALL_ROUTERS_ADDRESS
-        )
+            config.REALM_LOCAL_ALL_ROUTERS_ADDRESS)
 
         # 7 MED1: Power off MED1 and wait to allow DUT_ROUTER2 to timeout the
         # child

tests/scripts/thread-cert/Cert_5_3_11_AddressQueryTimeoutIntervals.py

@@ -39,6 +39,7 @@ MED1 = 3
 
 
 class Cert_5_3_11_AddressQueryTimeoutIntervals(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_5_01_LeaderReboot.py

@@ -40,6 +40,7 @@ DUT_ROUTER1 = 2
 
 
 class Cert_5_5_1_LeaderReboot(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -54,15 +55,13 @@ class Cert_5_5_1_LeaderReboot(unittest.TestCase):
         self.nodes[DUT_ROUTER1].set_panid(0xface)
         self.nodes[DUT_ROUTER1].set_mode('rsdn')
         self.nodes[DUT_ROUTER1].add_whitelist(
-            self.nodes[DUT_LEADER].get_addr64()
-        )
+            self.nodes[DUT_LEADER].get_addr64())
         self.nodes[DUT_ROUTER1].enable_whitelist()
         self.nodes[DUT_ROUTER1].set_router_selection_jitter(1)
 
     def _setUpLeader(self):
         self.nodes[DUT_LEADER].add_whitelist(
-            self.nodes[DUT_ROUTER1].get_addr64()
-        )
+            self.nodes[DUT_ROUTER1].get_addr64())
         self.nodes[DUT_LEADER].enable_whitelist()
 
     def tearDown(self):
@@ -93,13 +92,11 @@ class Cert_5_5_1_LeaderReboot(unittest.TestCase):
 
         # Send a harness helper ping to the DUT
         router1_rloc = self.nodes[DUT_ROUTER1].get_ip6_address(
-            config.ADDRESS_TYPE.RLOC
-        )
+            config.ADDRESS_TYPE.RLOC)
         self.assertTrue(self.nodes[DUT_LEADER].ping(router1_rloc))
 
         leader_rloc = self.nodes[DUT_LEADER].get_ip6_address(
-            config.ADDRESS_TYPE.RLOC
-        )
+            config.ADDRESS_TYPE.RLOC)
         self.assertTrue(self.nodes[DUT_ROUTER1].ping(leader_rloc))
 
         # 3 DUT_LEADER: Reset DUT_LEADER
@@ -116,9 +113,8 @@ class Cert_5_5_1_LeaderReboot(unittest.TestCase):
 
         # Verify DUT_LEADER didn't send MLE Advertisement messages
         leader_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
-        msg = leader_messages.next_mle_message(
-            mle.CommandType.ADVERTISEMENT, False
-        )
+        msg = leader_messages.next_mle_message(mle.CommandType.ADVERTISEMENT,
+                                               False)
         self.assertTrue(msg is None)
 
         self.nodes[DUT_LEADER].start()
@@ -153,8 +149,7 @@ class Cert_5_5_1_LeaderReboot(unittest.TestCase):
             )
         else:
             msg = router1_messages_temp.next_mle_message(
-                mle.CommandType.LINK_ACCEPT_AND_REQUEST
-            )
+                mle.CommandType.LINK_ACCEPT_AND_REQUEST)
             self.assertTrue(msg is not None)
             command.check_link_accept(
                 msg,
@@ -167,18 +162,14 @@ class Cert_5_5_1_LeaderReboot(unittest.TestCase):
 
         # 6 DUT_LEADER: Verify DUT_LEADER didn't send a Parent Request message
         msg = leader_messages_temp.next_mle_message(
-            mle.CommandType.PARENT_REQUEST, False
-        )
+            mle.CommandType.PARENT_REQUEST, False)
         self.assertTrue(msg is None)
 
         # 7 ALL: Verify connectivity by sending an ICMPv6 Echo Request from
         # DUT_LEADER to DUT_ROUTER1 link local address
         router1_link_local_address = self.nodes[DUT_ROUTER1].get_ip6_address(
-            config.ADDRESS_TYPE.LINK_LOCAL
-        )
-        self.assertTrue(
-            self.nodes[DUT_LEADER].ping(router1_link_local_address)
-        )
+            config.ADDRESS_TYPE.LINK_LOCAL)
+        self.assertTrue(self.nodes[DUT_LEADER].ping(router1_link_local_address))
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_5_5_02_LeaderReboot.py

@@ -38,6 +38,7 @@ ED = 3
 
 
 class Cert_5_5_2_LeaderReboot(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_5_03_SplitMergeChildren.py

@@ -43,6 +43,7 @@ MTDS = [ED1, ED2, ED3]
 
 
 class Cert_5_5_3_SplitMergeChildren(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_5_04_SplitMergeRouters.py

@@ -40,6 +40,7 @@ ROUTER4 = 5
 
 
 class Cert_5_5_4_SplitMergeRouters(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_5_05_SplitMergeREED.py

@@ -41,6 +41,7 @@ REED1 = 17
 
 
 class Cert_5_5_5_SplitMergeREED(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_5_07_SplitMergeThreeWay.py

@@ -39,6 +39,7 @@ ROUTER3 = 4
 
 
 class Cert_5_5_7_SplitMergeThreeWay(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_5_08_SplitRoutersLostLeader.py

@@ -40,6 +40,7 @@ ED1 = 5
 
 
 class Cert_5_5_8_SplitRoutersLostLeader(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_6_01_NetworkDataRegisterBeforeAttachLeader.py

@@ -41,6 +41,7 @@ MTDS = [ED1, SED1]
 
 
 class Cert_5_6_1_NetworkDataLeaderAsBr(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_6_02_NetworkDataRegisterBeforeAttachRouter.py

@@ -41,6 +41,7 @@ MTDS = [ED1, SED1]
 
 
 class Cert_5_6_2_NetworkDataRouterAsBr(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_6_03_NetworkDataRegisterAfterAttachLeader.py

@@ -41,6 +41,7 @@ MTDS = [ED1, SED1]
 
 
 class Cert_5_6_3_NetworkDataRegisterAfterAttachLeader(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_6_04_NetworkDataRegisterAfterAttachRouter.py

@@ -41,6 +41,7 @@ MTDS = [ED1, SED1]
 
 
 class Cert_5_6_4_NetworkDataRegisterAfterAttachRouter(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_6_05_NetworkDataRegisterAfterAttachRouter.py

@@ -41,6 +41,7 @@ MTDS = [ED1, SED1]
 
 
 class Cert_5_6_5_NetworkDataRegisterAfterAttachRouter(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_6_06_NetworkDataExpiration.py

@@ -41,6 +41,7 @@ MTDS = [ED1, SED1]
 
 
 class Cert_5_6_6_NetworkDataExpiration(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_6_07_NetworkDataRequestREED.py

@@ -38,6 +38,7 @@ REED = 3
 
 
 class Cert_5_6_7_NetworkDataRequestREED(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_6_08_ContextManagement.py

@@ -38,6 +38,7 @@ ED = 3
 
 
 class Cert_5_6_8_ContextManagement(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_6_09_NetworkDataForwarding.py

@@ -42,6 +42,7 @@ MTDS = [ED, SED]
 
 
 class Cert_5_6_9_NetworkDataForwarding(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_8_01_KeySynchronization.py

@@ -37,6 +37,7 @@ ED = 2
 
 
 class Cert_5_8_1_KeySynchronization(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_8_02_KeyIncrement.py

@@ -37,6 +37,7 @@ ROUTER = 2
 
 
 class Cert_5_8_2_KeyIncrement(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_5_8_03_KeyIncrementRollOver.py

@@ -37,6 +37,7 @@ ROUTER = 2
 
 
 class Cert_5_8_3_KeyIncrementRollOver(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_1_01_RouterAttach.py

@@ -38,6 +38,7 @@ ED = 2
 
 
 class Cert_6_1_1_RouterAttach(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -109,8 +110,7 @@ class Cert_6_1_1_RouterAttach(unittest.TestCase):
 
         # 5 - leader
         msg = leader_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        )
+            mle.CommandType.CHILD_ID_RESPONSE)
         msg.assertSentToNode(self.nodes[ED])
 
         # 6 - leader

tests/scripts/thread-cert/Cert_6_1_02_REEDAttach_MED.py

@@ -43,6 +43,7 @@ MED = 3
 
 
 class Cert_6_1_2_REEDAttach_MED(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -99,9 +100,8 @@ class Cert_6_1_2_REEDAttach_MED(unittest.TestCase):
         check_parent_request(msg, is_first_request=False)
 
         # Step 6 - DUT sends Child ID Request
-        msg = med_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_REQUEST, sent_to_node=self.nodes[REED]
-        )
+        msg = med_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST,
+                                            sent_to_node=self.nodes[REED])
         check_child_id_request(
             msg,
             address_registration=CheckType.CONTAIN,
@@ -117,8 +117,7 @@ class Cert_6_1_2_REEDAttach_MED(unittest.TestCase):
 
         # Step 8 - DUT sends Child Update messages
         msg = med_messages.next_mle_message(
-            mle.CommandType.CHILD_UPDATE_REQUEST
-        )
+            mle.CommandType.CHILD_UPDATE_REQUEST)
         check_child_update_request_from_child(
             msg,
             source_address=CheckType.CONTAIN,

tests/scripts/thread-cert/Cert_6_1_02_REEDAttach_SED.py

@@ -44,6 +44,7 @@ SED = 3
 
 
 class Cert_6_1_2_REEDAttach_SED(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -100,9 +101,8 @@ class Cert_6_1_2_REEDAttach_SED(unittest.TestCase):
         check_parent_request(msg, is_first_request=False)
 
         # Step 6 - DUT sends Child ID Request
-        msg = sed_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_REQUEST, sent_to_node=self.nodes[REED]
-        )
+        msg = sed_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST,
+                                            sent_to_node=self.nodes[REED])
         check_child_id_request(
             msg,
             address_registration=CheckType.CONTAIN,
@@ -119,9 +119,8 @@ class Cert_6_1_2_REEDAttach_SED(unittest.TestCase):
 
         # Step 11 - SED sends periodic 802.15.4 Data Request messages
         msg = sed_messages.next_message()
-        self.assertEqual(
-            False, msg.isMacAddressTypeLong()
-        )  # Extra check, keep-alive messages are of short types of mac address
+        self.assertEqual(False, msg.isMacAddressTypeLong(
+        ))  # Extra check, keep-alive messages are of short types of mac address
         self.assertEqual(msg.type, message.MessageType.COMMAND)
         self.assertEqual(
             msg.mac_header.command_type,

tests/scripts/thread-cert/Cert_6_1_03_RouterAttachConnectivity.py

@@ -40,6 +40,7 @@ ED = 5
 
 
 class Cert_6_1_3_RouterAttachConnectivity(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_1_04_REEDAttachConnectivity.py

@@ -40,6 +40,7 @@ ED = 5
 
 
 class Cert_6_1_4_REEDAttachConnectivity(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_1_05_RouterAttachLinkQuality.py

@@ -39,6 +39,7 @@ ED = 4
 
 
 class Cert_6_1_5_RouterAttachLinkQuality(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -62,9 +63,7 @@ class Cert_6_1_5_RouterAttachLinkQuality(unittest.TestCase):
         self.nodes[ROUTER2].set_panid(0xface)
         self.nodes[ROUTER2].set_mode('rsdn')
         self.nodes[ROUTER2].add_whitelist(self.nodes[LEADER].get_addr64())
-        self.nodes[ROUTER2].add_whitelist(
-            self.nodes[ED].get_addr64(), rssi=-85
-        )
+        self.nodes[ROUTER2].add_whitelist(self.nodes[ED].get_addr64(), rssi=-85)
         self.nodes[ROUTER2].enable_whitelist()
         self.nodes[ROUTER2].set_router_selection_jitter(1)
 

tests/scripts/thread-cert/Cert_6_1_06_REEDAttachLinkQuality_ED.py

@@ -40,6 +40,7 @@ ED = 4
 
 
 class Cert_6_1_6_REEDAttachLinkQuality_ED(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -63,9 +64,7 @@ class Cert_6_1_6_REEDAttachLinkQuality_ED(unittest.TestCase):
         self.nodes[ROUTER2].set_panid(0xface)
         self.nodes[ROUTER2].set_mode('rsdn')
         self.nodes[ROUTER2].add_whitelist(self.nodes[LEADER].get_addr64())
-        self.nodes[ROUTER2].add_whitelist(
-            self.nodes[ED].get_addr64(), rssi=-85
-        )
+        self.nodes[ROUTER2].add_whitelist(self.nodes[ED].get_addr64(), rssi=-85)
         self.nodes[ROUTER2].enable_whitelist()
         self.nodes[ROUTER2].set_router_selection_jitter(1)
 
@@ -140,9 +139,7 @@ class Cert_6_1_6_REEDAttachLinkQuality_ED(unittest.TestCase):
         self.assertEqual(0, scan_mask_tlv.end_device)
 
         # 4 - Router2
-        msg = router2_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router2_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[ED])
 
         # 5 - ED
@@ -159,9 +156,7 @@ class Cert_6_1_6_REEDAttachLinkQuality_ED(unittest.TestCase):
         self.assertEqual(1, scan_mask_tlv.end_device)
 
         # 6 - REED
-        msg = router2_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router2_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[ED])
 
         msg = reed_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)

tests/scripts/thread-cert/Cert_6_1_06_REEDAttachLinkQuality_SED.py

@@ -40,6 +40,7 @@ SED = 4
 
 
 class Cert_6_1_6_REEDAttachLinkQuality_SED(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -63,9 +64,8 @@ class Cert_6_1_6_REEDAttachLinkQuality_SED(unittest.TestCase):
         self.nodes[ROUTER2].set_panid(0xface)
         self.nodes[ROUTER2].set_mode('rsdn')
         self.nodes[ROUTER2].add_whitelist(self.nodes[LEADER].get_addr64())
-        self.nodes[ROUTER2].add_whitelist(
-            self.nodes[SED].get_addr64(), rssi=-85
-        )
+        self.nodes[ROUTER2].add_whitelist(self.nodes[SED].get_addr64(),
+                                          rssi=-85)
         self.nodes[ROUTER2].enable_whitelist()
         self.nodes[ROUTER2].set_router_selection_jitter(1)
 
@@ -141,9 +141,7 @@ class Cert_6_1_6_REEDAttachLinkQuality_SED(unittest.TestCase):
         self.assertEqual(0, scan_mask_tlv.end_device)
 
         # 4 - Router2
-        msg = router2_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router2_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[SED])
 
         # 5 - SED
@@ -160,9 +158,7 @@ class Cert_6_1_6_REEDAttachLinkQuality_SED(unittest.TestCase):
         self.assertEqual(1, scan_mask_tlv.end_device)
 
         # 6 - REED
-        msg = router2_messages.next_mle_message(
-            mle.CommandType.PARENT_RESPONSE
-        )
+        msg = router2_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)
         msg.assertSentToNode(self.nodes[SED])
 
         msg = reed_messages.next_mle_message(mle.CommandType.PARENT_RESPONSE)

tests/scripts/thread-cert/Cert_6_1_07_EDSynchronization.py

@@ -40,6 +40,7 @@ ROUTER3 = 5
 
 
 class Cert_6_1_7_EDSynchronization(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_2_01_NewPartition.py

@@ -38,6 +38,7 @@ ED = 3
 
 
 class Cert_6_2_1_NewPartition(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_2_02_NewPartition.py

@@ -39,6 +39,7 @@ ED = 4
 
 
 class Cert_6_2_2_NewPartition(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_3_01_OrphanReattach.py

@@ -38,6 +38,7 @@ ED = 3
 
 
 class Cert_6_3_1_OrphanReattach(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_3_02_NetworkDataUpdate.py

@@ -37,6 +37,7 @@ ED = 2
 
 
 class Cert_6_3_2_NetworkDataUpdate(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_4_01_LinkLocal.py

@@ -37,6 +37,7 @@ ED = 2
 
 
 class Cert_6_4_1_LinkLocal(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_4_02_RealmLocal.py

@@ -38,6 +38,7 @@ ED = 3
 
 
 class Cert_5_3_2_RealmLocal(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -87,21 +88,15 @@ class Cert_5_3_2_RealmLocal(unittest.TestCase):
                 self.assertTrue(self.nodes[LEADER].ping(addr, size=256))
                 self.assertTrue(self.nodes[LEADER].ping(addr))
 
-        self.assertTrue(
-            self.nodes[LEADER].ping('ff03::1', num_responses=2, size=256)
-        )
+        self.assertTrue(self.nodes[LEADER].ping('ff03::1',
+                                                num_responses=2,
+                                                size=256))
         self.assertTrue(self.nodes[LEADER].ping('ff03::1', num_responses=2))
 
-        self.assertTrue(
-            self.nodes[LEADER].ping(
-                'ff33:0040:fdde:ad00:beef:0:0:1', num_responses=2, size=256
-            )
-        )
-        self.assertTrue(
-            self.nodes[LEADER].ping(
-                'ff33:0040:fdde:ad00:beef:0:0:1', num_responses=2
-            )
-        )
+        self.assertTrue(self.nodes[LEADER].ping(
+            'ff33:0040:fdde:ad00:beef:0:0:1', num_responses=2, size=256))
+        self.assertTrue(self.nodes[LEADER].ping(
+            'ff33:0040:fdde:ad00:beef:0:0:1', num_responses=2))
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_6_5_01_ChildResetSynchronize.py

@@ -37,6 +37,7 @@ ED = 2
 
 
 class Cert_6_5_1_ChildResetSynchronize(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_5_02_ChildResetReattach.py

@@ -37,6 +37,7 @@ ED = 2
 
 
 class Cert_6_5_2_ChildResetReattach(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_6_01_KeyIncrement.py

@@ -37,6 +37,7 @@ ED = 2
 
 
 class Cert_6_6_1_KeyIncrement(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_6_6_02_KeyIncrementRollOver.py

@@ -37,6 +37,7 @@ ED = 2
 
 
 class Cert_6_6_2_KeyIncrement1(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_7_1_01_BorderRouterAsLeader.py

@@ -51,6 +51,7 @@ MTDS = [SED1, MED1]
 
 
 class Cert_7_1_1_BorderRouterAsLeader(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -138,68 +139,52 @@ class Cert_7_1_1_BorderRouterAsLeader(unittest.TestCase):
         msg = leader_messages.next_mle_message(mle.CommandType.DATA_RESPONSE)
         check_data_response(
             msg,
-            network_data_check=NetworkDataCheck(
-                prefixes_check=PrefixesCheck(
-                    prefix_check_list=[
-                        SinglePrefixCheck(prefix=b'2001000200000001'),
-                        SinglePrefixCheck(prefix=b'2001000200000002'),
-                    ]
-                )
-            ),
+            network_data_check=NetworkDataCheck(prefixes_check=PrefixesCheck(
+                prefix_check_list=[
+                    SinglePrefixCheck(prefix=b'2001000200000001'),
+                    SinglePrefixCheck(prefix=b'2001000200000002'),
+                ])),
         )
 
         # Step 4 - DUT sends a MLE Child ID Response to Router1
         msg = leader_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        )
+            mle.CommandType.CHILD_ID_RESPONSE)
         check_child_id_response(
             msg,
-            network_data_check=NetworkDataCheck(
-                prefixes_check=PrefixesCheck(prefix_cnt=2)
-            ),
+            network_data_check=NetworkDataCheck(prefixes_check=PrefixesCheck(
+                prefix_cnt=2)),
         )
 
         # Step 6 - DUT sends a MLE Child ID Response to SED1
         msg = leader_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        )
+            mle.CommandType.CHILD_ID_RESPONSE)
         check_child_id_response(
             msg,
-            network_data_check=NetworkDataCheck(
-                prefixes_check=PrefixesCheck(
-                    prefix_check_list=[
-                        SinglePrefixCheck(border_router_16=0xfffe)
-                    ]
-                )
-            ),
+            network_data_check=NetworkDataCheck(prefixes_check=PrefixesCheck(
+                prefix_check_list=[SinglePrefixCheck(
+                    border_router_16=0xfffe)])),
         )
 
         # For Step 10
         msg_chd_upd_res_to_sed = leader_messages.next_mle_message(
-            mle.CommandType.CHILD_UPDATE_RESPONSE
-        )
+            mle.CommandType.CHILD_UPDATE_RESPONSE)
 
         # Step 8 - DUT sends a MLE Child ID Response to MED1
         msg = leader_messages.next_mle_message(
-            mle.CommandType.CHILD_ID_RESPONSE
-        )
+            mle.CommandType.CHILD_ID_RESPONSE)
         check_child_id_response(
             msg,
-            network_data_check=NetworkDataCheck(
-                prefixes_check=PrefixesCheck(prefix_cnt=2)
-            ),
+            network_data_check=NetworkDataCheck(prefixes_check=PrefixesCheck(
+                prefix_cnt=2)),
         )
 
         # Step 10 - DUT sends Child Update Response
         msg_chd_upd_res_to_med = leader_messages.next_mle_message(
-            mle.CommandType.CHILD_UPDATE_RESPONSE
-        )
+            mle.CommandType.CHILD_UPDATE_RESPONSE)
         msg = med1_messages.next_mle_message(
-            mle.CommandType.CHILD_UPDATE_REQUEST
-        )
+            mle.CommandType.CHILD_UPDATE_REQUEST)
         check_child_update_request_from_child(
-            msg, address_registration=CheckType.CONTAIN, CIDs=[0, 1, 2]
-        )
+            msg, address_registration=CheckType.CONTAIN, CIDs=[0, 1, 2])
 
         check_child_update_response(
             msg_chd_upd_res_to_med,
@@ -208,11 +193,9 @@ class Cert_7_1_1_BorderRouterAsLeader(unittest.TestCase):
         )
 
         msg = sed1_messages.next_mle_message(
-            mle.CommandType.CHILD_UPDATE_REQUEST
-        )
+            mle.CommandType.CHILD_UPDATE_REQUEST)
         check_child_update_request_from_child(
-            msg, address_registration=CheckType.CONTAIN, CIDs=[0, 1]
-        )
+            msg, address_registration=CheckType.CONTAIN, CIDs=[0, 1])
         check_child_update_response(
             msg_chd_upd_res_to_sed,
             address_registration=CheckType.CONTAIN,

tests/scripts/thread-cert/Cert_7_1_02_BorderRouterAsRouter.py

@@ -41,6 +41,7 @@ MTDS = [ED2, SED2]
 
 
 class Cert_7_1_2_BorderRouterAsRouter(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_7_1_03_BorderRouterAsLeader.py

@@ -51,6 +51,7 @@ MTDS = [SED1, MED1]
 
 
 class Cert_7_1_3_BorderRouterAsLeader(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -143,24 +144,19 @@ class Cert_7_1_3_BorderRouterAsLeader(unittest.TestCase):
         msg = leader_messages.next_mle_message(mle.CommandType.DATA_RESPONSE)
         check_data_response(
             msg,
-            network_data_check=NetworkDataCheck(
-                prefixes_check=PrefixesCheck(
-                    prefix_check_list=[
-                        SinglePrefixCheck(b'2001000200000001'),
-                        SinglePrefixCheck(b'2001000200000002'),
-                    ]
-                )
-            ),
+            network_data_check=NetworkDataCheck(prefixes_check=PrefixesCheck(
+                prefix_check_list=[
+                    SinglePrefixCheck(b'2001000200000001'),
+                    SinglePrefixCheck(b'2001000200000002'),
+                ])),
         )
 
         # 4 - N/A
         # Get addresses registered by MED1
         msg = med1_messages.next_mle_message(
-            mle.CommandType.CHILD_UPDATE_REQUEST
-        )
+            mle.CommandType.CHILD_UPDATE_REQUEST)
         check_child_update_request_from_child(
-            msg, address_registration=CheckType.CONTAIN, CIDs=[0, 1, 2]
-        )
+            msg, address_registration=CheckType.CONTAIN, CIDs=[0, 1, 2])
 
         # 5 - Leader
         # Make a copy of leader's messages to ensure that we don't miss
@@ -170,9 +166,9 @@ class Cert_7_1_3_BorderRouterAsLeader(unittest.TestCase):
             mle.CommandType.CHILD_UPDATE_RESPONSE,
             sent_to_node=self.nodes[MED1],
         )
-        check_child_update_response(
-            msg, address_registration=CheckType.CONTAIN, CIDs=[1, 2]
-        )
+        check_child_update_response(msg,
+                                    address_registration=CheckType.CONTAIN,
+                                    CIDs=[1, 2])
 
         # 6A & 6B - Leader
         if config.LEADER_NOTIFY_SED_BY_CHILD_UPDATE_REQUEST:
@@ -188,27 +184,24 @@ class Cert_7_1_3_BorderRouterAsLeader(unittest.TestCase):
             )
         else:
             msg = leader_messages.next_mle_message(
-                mle.CommandType.DATA_RESPONSE, sent_to_node=self.nodes[SED1]
-            )
+                mle.CommandType.DATA_RESPONSE, sent_to_node=self.nodes[SED1])
             check_data_response(msg, network_data_check=NetworkDataCheck())
 
         # 7 - N/A
         # Get addresses registered by SED1
         msg = sed1_messages.next_mle_message(
-            mle.CommandType.CHILD_UPDATE_REQUEST
-        )
+            mle.CommandType.CHILD_UPDATE_REQUEST)
         check_child_update_request_from_child(
-            msg, address_registration=CheckType.CONTAIN, CIDs=[0, 1]
-        )
+            msg, address_registration=CheckType.CONTAIN, CIDs=[0, 1])
 
         # 8 - Leader
         msg = leader_messages.next_mle_message(
             mle.CommandType.CHILD_UPDATE_RESPONSE,
             sent_to_node=self.nodes[SED1],
         )
-        check_child_update_response(
-            msg, address_registration=CheckType.CONTAIN, CIDs=[1]
-        )
+        check_child_update_response(msg,
+                                    address_registration=CheckType.CONTAIN,
+                                    CIDs=[1])
 
 
 if __name__ == '__main__':

tests/scripts/thread-cert/Cert_7_1_04_BorderRouterAsRouter.py

@@ -41,6 +41,7 @@ MTDS = [SED2, ED2]
 
 
 class Cert_7_1_4_BorderRouterAsRouter(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 

tests/scripts/thread-cert/Cert_7_1_05_BorderRouterAsRouter.py

@@ -41,6 +41,7 @@ MTDS = [ED2, SED2]
 
 
 class Cert_7_1_5_BorderRouterAsRouter(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -127,11 +128,8 @@ class Cert_7_1_5_BorderRouterAsRouter(unittest.TestCase):
         self.assertTrue(any('2001:2:0:2' in addr[0:10] for addr in addrs))
         self.assertTrue(any('2001:2:0:3' in addr[0:10] for addr in addrs))
         for addr in addrs:
-            if (
-                addr[0:10] == '2001:2:0:1'
-                or addr[0:10] == '2001:2:0:2'
-                or addr[0:10] == '2001:2:0:3'
-            ):
+            if (addr[0:10] == '2001:2:0:1' or addr[0:10] == '2001:2:0:2' or
+                    addr[0:10] == '2001:2:0:3'):
                 self.assertTrue(self.nodes[LEADER].ping(addr))
 
         addrs = self.nodes[SED2].get_addrs()
@@ -139,11 +137,8 @@ class Cert_7_1_5_BorderRouterAsRouter(unittest.TestCase):
         self.assertFalse(any('2001:2:0:2' in addr[0:10] for addr in addrs))
         self.assertTrue(any('2001:2:0:3' in addr[0:10] for addr in addrs))
         for addr in addrs:
-            if (
-                addr[0:10] == '2001:2:0:1'
-                or addr[0:10] == '2001:2:0:2'
-                or addr[0:10] == '2001:2:0:3'
-            ):
+            if (addr[0:10] == '2001:2:0:1' or addr[0:10] == '2001:2:0:2' or
+                    addr[0:10] == '2001:2:0:3'):
                 self.assertTrue(self.nodes[LEADER].ping(addr))
 
 

tests/scripts/thread-cert/Cert_8_1_01_Commissioning.py

@@ -42,6 +42,7 @@ JOINER = 2
 
 
 class Cert_8_1_01_Commissioning(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -52,8 +53,7 @@ class Cert_8_1_01_Commissioning(unittest.TestCase):
         self.nodes[COMMISSIONER].set_panid(0xface)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].set_masterkey(
-            '00112233445566778899aabbccddeeff'
-        )
+            '00112233445566778899aabbccddeeff')
 
         self.nodes[JOINER].set_mode('rsdn')
         self.nodes[JOINER].set_masterkey('deadbeefdeadbeefdeadbeefdeadbeef')
@@ -73,15 +73,13 @@ class Cert_8_1_01_Commissioning(unittest.TestCase):
         self.nodes[COMMISSIONER].commissioner_start()
         self.simulator.go(3)
         self.nodes[COMMISSIONER].commissioner_add_joiner(
-            self.nodes[JOINER].get_eui64(), 'OPENTHREAD'
-        )
+            self.nodes[JOINER].get_eui64(), 'OPENTHREAD')
 
         self.nodes[JOINER].interface_up()
         self.nodes[JOINER].joiner_start('OPENTHREAD')
         self.simulator.go(10)
         self.simulator.read_cert_messages_in_commissioning_log(
-            [COMMISSIONER, JOINER]
-        )
+            [COMMISSIONER, JOINER])
         self.assertEqual(
             self.nodes[JOINER].get_masterkey(),
             self.nodes[COMMISSIONER].get_masterkey(),
@@ -89,66 +87,55 @@ class Cert_8_1_01_Commissioning(unittest.TestCase):
 
         joiner_messages = self.simulator.get_messages_sent_by(JOINER)
         commissioner_messages = self.simulator.get_messages_sent_by(
-            COMMISSIONER
-        )
+            COMMISSIONER)
 
         # 2 - N/A
 
         # 3 - Joiner_1
         msg = joiner_messages.next_mle_message(
-            mle.CommandType.DISCOVERY_REQUEST
-        )
+            mle.CommandType.DISCOVERY_REQUEST)
         command.check_discovery_request(msg)
         request_src_addr = msg.mac_header.src_address
 
         # 4 - Commissioner
         msg = commissioner_messages.next_mle_message(
-            mle.CommandType.DISCOVERY_RESPONSE
-        )
-        command.check_discovery_response(
-            msg, request_src_addr, steering_data=CheckType.CONTAIN
-        )
+            mle.CommandType.DISCOVERY_RESPONSE)
+        command.check_discovery_response(msg,
+                                         request_src_addr,
+                                         steering_data=CheckType.CONTAIN)
         udp_port_set_by_commissioner = command.get_joiner_udp_port_in_discovery_response(
             msg)
 
         # 5.2 - Joiner_1
-        msg = joiner_messages.next_dtls_message(
-            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.CLIENT_HELLO
-        )
+        msg = joiner_messages.next_dtls_message(dtls.ContentType.HANDSHAKE,
+                                                dtls.HandshakeType.CLIENT_HELLO)
         self.assertEqual(msg.get_dst_udp_port(), udp_port_set_by_commissioner)
 
         # 5.3 - Commissioner
         msg = commissioner_messages.next_dtls_message(
-            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.HELLO_VERIFY_REQUEST
-        )
+            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.HELLO_VERIFY_REQUEST)
         commissioner_cookie = msg.dtls.body.cookie
 
         # 5.4 - Joiner_1
-        msg = joiner_messages.next_dtls_message(
-            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.CLIENT_HELLO
-        )
+        msg = joiner_messages.next_dtls_message(dtls.ContentType.HANDSHAKE,
+                                                dtls.HandshakeType.CLIENT_HELLO)
         self.assertEqual(commissioner_cookie, msg.dtls.body.cookie)
         self.assertEqual(msg.get_dst_udp_port(), udp_port_set_by_commissioner)
 
         # 5.5 - Commissioner
+        commissioner_messages.next_dtls_message(dtls.ContentType.HANDSHAKE,
+                                                dtls.HandshakeType.SERVER_HELLO)
         commissioner_messages.next_dtls_message(
-            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.SERVER_HELLO
-        )
+            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.SERVER_KEY_EXCHANGE)
         commissioner_messages.next_dtls_message(
-            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.SERVER_KEY_EXCHANGE
-        )
-        commissioner_messages.next_dtls_message(
-            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.SERVER_HELLO_DONE
-        )
+            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.SERVER_HELLO_DONE)
 
         # 5.6 - Joiner_1
         msg = joiner_messages.next_dtls_message(
-            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.CLIENT_KEY_EXCHANGE
-        )
+            dtls.ContentType.HANDSHAKE, dtls.HandshakeType.CLIENT_KEY_EXCHANGE)
         self.assertEqual(msg.get_dst_udp_port(), udp_port_set_by_commissioner)
         msg = joiner_messages.next_dtls_message(
-            dtls.ContentType.CHANGE_CIPHER_SPEC
-        )
+            dtls.ContentType.CHANGE_CIPHER_SPEC)
         self.assertEqual(msg.get_dst_udp_port(), udp_port_set_by_commissioner)
 
         # TODO(wgtdkp): It's required to verify DTLS FINISHED message here.
@@ -156,8 +143,7 @@ class Cert_8_1_01_Commissioning(unittest.TestCase):
 
         # 5.7 - Commissioner
         commissioner_messages.next_dtls_message(
-            dtls.ContentType.CHANGE_CIPHER_SPEC
-        )
+            dtls.ContentType.CHANGE_CIPHER_SPEC)
 
         # TODO(wgtdkp): It's required to verify DTLS FINISHED message here.
         # Currently not handled as it is encrypted.
@@ -165,16 +151,13 @@ class Cert_8_1_01_Commissioning(unittest.TestCase):
         # 5.8,9,10,11
         # - Joiner_1
         command.check_joiner_commissioning_messages(
-            joiner_messages.commissioning_messages
-        )
+            joiner_messages.commissioning_messages)
         # - Commissioner
         command.check_commissioner_commissioning_messages(
-            commissioner_messages.commissioning_messages
-        )
+            commissioner_messages.commissioning_messages)
         # As commissioner is also joiner router
         command.check_joiner_router_commissioning_messages(
-            commissioner_messages.commissioning_messages
-        )
+            commissioner_messages.commissioning_messages)
 
         self.nodes[JOINER].thread_start()
         self.simulator.go(5)

tests/scripts/thread-cert/Cert_8_1_02_Commissioning.py

@@ -37,6 +37,7 @@ JOINER = 2
 
 
 class Cert_8_1_02_Commissioning(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -47,8 +48,7 @@ class Cert_8_1_02_Commissioning(unittest.TestCase):
         self.nodes[COMMISSIONER].set_panid(0xface)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].set_masterkey(
-            'deadbeefdeadbeefdeadbeefdeadbeef'
-        )
+            'deadbeefdeadbeefdeadbeefdeadbeef')
 
         self.nodes[JOINER].set_mode('rsdn')
         self.nodes[JOINER].set_masterkey('00112233445566778899aabbccddeeff')
@@ -68,8 +68,7 @@ class Cert_8_1_02_Commissioning(unittest.TestCase):
         self.nodes[COMMISSIONER].commissioner_start()
         self.simulator.go(3)
         self.nodes[COMMISSIONER].commissioner_add_joiner(
-            self.nodes[JOINER].get_eui64(), 'OPENTHREAD'
-        )
+            self.nodes[JOINER].get_eui64(), 'OPENTHREAD')
 
         self.nodes[JOINER].interface_up()
         self.nodes[JOINER].joiner_start('DAERHTNEPO')

tests/scripts/thread-cert/Cert_8_2_01_JoinerRouter.py

@@ -38,6 +38,7 @@ JOINER = 3
 
 
 class Cert_8_2_01_JoinerRouter(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -48,15 +49,13 @@ class Cert_8_2_01_JoinerRouter(unittest.TestCase):
         self.nodes[COMMISSIONER].set_panid(0xface)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].set_masterkey(
-            'deadbeefdeadbeefdeadbeefdeadbeef'
-        )
+            'deadbeefdeadbeefdeadbeefdeadbeef')
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
         self.nodes[JOINER_ROUTER].set_mode('rsdn')
         self.nodes[JOINER_ROUTER].set_masterkey(
-            '00112233445566778899aabbccddeeff'
-        )
+            '00112233445566778899aabbccddeeff')
         self.nodes[JOINER_ROUTER].enable_whitelist()
         self.nodes[JOINER_ROUTER].set_router_selection_jitter(1)
 
@@ -80,19 +79,15 @@ class Cert_8_2_01_JoinerRouter(unittest.TestCase):
         self.nodes[COMMISSIONER].commissioner_start()
         self.simulator.go(5)
         self.nodes[COMMISSIONER].commissioner_add_joiner(
-            self.nodes[JOINER_ROUTER].get_eui64(), 'OPENTHREAD'
-        )
+            self.nodes[JOINER_ROUTER].get_eui64(), 'OPENTHREAD')
         self.nodes[COMMISSIONER].commissioner_add_joiner(
-            self.nodes[JOINER].get_eui64(), 'OPENTHREAD2'
-        )
+            self.nodes[JOINER].get_eui64(), 'OPENTHREAD2')
         self.simulator.go(5)
 
         self.nodes[COMMISSIONER].add_whitelist(
-            self.nodes[JOINER_ROUTER].get_joiner_id()
-        )
+            self.nodes[JOINER_ROUTER].get_joiner_id())
         self.nodes[JOINER_ROUTER].add_whitelist(
-            self.nodes[COMMISSIONER].get_addr64()
-        )
+            self.nodes[COMMISSIONER].get_addr64())
 
         self.nodes[JOINER_ROUTER].interface_up()
         self.nodes[JOINER_ROUTER].joiner_start('OPENTHREAD')
@@ -103,19 +98,15 @@ class Cert_8_2_01_JoinerRouter(unittest.TestCase):
         )
 
         self.nodes[COMMISSIONER].add_whitelist(
-            self.nodes[JOINER_ROUTER].get_addr64()
-        )
+            self.nodes[JOINER_ROUTER].get_addr64())
 
         self.nodes[JOINER_ROUTER].thread_start()
         self.simulator.go(5)
         self.assertEqual(self.nodes[JOINER_ROUTER].get_state(), 'router')
 
         self.nodes[JOINER_ROUTER].add_whitelist(
-            self.nodes[JOINER].get_joiner_id()
-        )
-        self.nodes[JOINER].add_whitelist(
-            self.nodes[JOINER_ROUTER].get_addr64()
-        )
+            self.nodes[JOINER].get_joiner_id())
+        self.nodes[JOINER].add_whitelist(self.nodes[JOINER_ROUTER].get_addr64())
 
         self.nodes[JOINER].interface_up()
         self.nodes[JOINER].joiner_start('OPENTHREAD2')
@@ -125,9 +116,7 @@ class Cert_8_2_01_JoinerRouter(unittest.TestCase):
             self.nodes[COMMISSIONER].get_masterkey(),
         )
 
-        self.nodes[JOINER_ROUTER].add_whitelist(
-            self.nodes[JOINER].get_addr64()
-        )
+        self.nodes[JOINER_ROUTER].add_whitelist(self.nodes[JOINER].get_addr64())
 
         self.nodes[JOINER].thread_start()
         self.simulator.go(5)

tests/scripts/thread-cert/Cert_8_2_02_JoinerRouter.py

@@ -38,6 +38,7 @@ JOINER = 3
 
 
 class Cert_8_2_02_JoinerRouter(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -48,15 +49,13 @@ class Cert_8_2_02_JoinerRouter(unittest.TestCase):
         self.nodes[COMMISSIONER].set_panid(0xface)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].set_masterkey(
-            'deadbeefdeadbeefdeadbeefdeadbeef'
-        )
+            'deadbeefdeadbeefdeadbeefdeadbeef')
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
         self.nodes[JOINER_ROUTER].set_mode('rsdn')
         self.nodes[JOINER_ROUTER].set_masterkey(
-            '00112233445566778899aabbccddeeff'
-        )
+            '00112233445566778899aabbccddeeff')
         self.nodes[JOINER_ROUTER].enable_whitelist()
         self.nodes[JOINER_ROUTER].set_router_selection_jitter(1)
 
@@ -80,19 +79,15 @@ class Cert_8_2_02_JoinerRouter(unittest.TestCase):
         self.nodes[COMMISSIONER].commissioner_start()
         self.simulator.go(5)
         self.nodes[COMMISSIONER].commissioner_add_joiner(
-            self.nodes[JOINER_ROUTER].get_eui64(), 'OPENTHREAD'
-        )
+            self.nodes[JOINER_ROUTER].get_eui64(), 'OPENTHREAD')
         self.nodes[COMMISSIONER].commissioner_add_joiner(
-            self.nodes[JOINER].get_eui64(), 'OPENTHREAD2'
-        )
+            self.nodes[JOINER].get_eui64(), 'OPENTHREAD2')
         self.simulator.go(5)
 
         self.nodes[COMMISSIONER].add_whitelist(
-            self.nodes[JOINER_ROUTER].get_joiner_id()
-        )
+            self.nodes[JOINER_ROUTER].get_joiner_id())
         self.nodes[JOINER_ROUTER].add_whitelist(
-            self.nodes[COMMISSIONER].get_addr64()
-        )
+            self.nodes[COMMISSIONER].get_addr64())
 
         self.nodes[JOINER_ROUTER].interface_up()
         self.nodes[JOINER_ROUTER].joiner_start('OPENTHREAD')
@@ -103,19 +98,15 @@ class Cert_8_2_02_JoinerRouter(unittest.TestCase):
         )
 
         self.nodes[COMMISSIONER].add_whitelist(
-            self.nodes[JOINER_ROUTER].get_addr64()
-        )
+            self.nodes[JOINER_ROUTER].get_addr64())
 
         self.nodes[JOINER_ROUTER].thread_start()
         self.simulator.go(5)
         self.assertEqual(self.nodes[JOINER_ROUTER].get_state(), 'router')
 
         self.nodes[JOINER_ROUTER].add_whitelist(
-            self.nodes[JOINER].get_joiner_id()
-        )
-        self.nodes[JOINER].add_whitelist(
-            self.nodes[JOINER_ROUTER].get_addr64()
-        )
+            self.nodes[JOINER].get_joiner_id())
+        self.nodes[JOINER].add_whitelist(self.nodes[JOINER_ROUTER].get_addr64())
 
         self.nodes[JOINER].interface_up()
         self.nodes[JOINER].joiner_start('2DAERHTNEPO')

tests/scripts/thread-cert/Cert_9_2_02_MGMTCommissionerSet.py

@@ -41,6 +41,7 @@ LEADER = 2
 
 
 class Cert_9_2_02_MGMTCommissionerSet(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -88,15 +89,13 @@ class Cert_9_2_02_MGMTCommissionerSet(unittest.TestCase):
         leader_messages = self.simulator.get_messages_sent_by(LEADER)
         msg = leader_messages.next_coap_message('2.04', assert_enabled=True)
         commissioner_session_id_tlv = command.get_sub_tlv(
-            msg.coap.payload, mesh_cop.CommissionerSessionId
-        )
+            msg.coap.payload, mesh_cop.CommissionerSessionId)
 
         # Step 2 - Harness instructs commissioner to send
         # MGMT_COMMISSIONER_SET.req to Leader
         steering_data_tlv = mesh_cop.SteeringData(bytes([0xff]))
         self.nodes[COMMISSIONER].commissioner_mgmtset_with_tlvs(
-            [steering_data_tlv]
-        )
+            [steering_data_tlv])
         self.simulator.go(5)
 
         # Step 3 - Leader responds to MGMT_COMMISSIONER_SET.req with
@@ -105,19 +104,16 @@ class Cert_9_2_02_MGMTCommissionerSet(unittest.TestCase):
         msg = leader_messages.next_coap_message('2.04')
         # (mesh_cop.State(mesh_cop.MeshCopState.REJECT),) <- this a tuple, don't delete the comma
         command.check_coap_message(
-            msg, [mesh_cop.State(mesh_cop.MeshCopState.REJECT)]
-        )
+            msg, [mesh_cop.State(mesh_cop.MeshCopState.REJECT)])
         self.simulator.get_messages_sent_by(COMMISSIONER)  # Skip LEAD_PET.req
 
         # Step 4 - Harness instructs commissioner to send
         # MGMT_COMMISSIONER_SET.req to Leader
         self.nodes[COMMISSIONER].commissioner_mgmtset_with_tlvs(
-            [steering_data_tlv, commissioner_session_id_tlv]
-        )
+            [steering_data_tlv, commissioner_session_id_tlv])
         self.simulator.go(5)
         commissioner_messages = self.simulator.get_messages_sent_by(
-            COMMISSIONER
-        )
+            COMMISSIONER)
         msg = commissioner_messages.next_coap_message('0.02', uri_path='/c/cs')
         rloc = ip_address(self.nodes[LEADER].get_rloc())
         leader_aloc = ip_address(self.nodes[LEADER].get_addr_leader_aloc())
@@ -131,8 +127,7 @@ class Cert_9_2_02_MGMTCommissionerSet(unittest.TestCase):
         leader_messages = self.simulator.get_messages_sent_by(LEADER)
         msg = leader_messages.next_coap_message('2.04')
         command.check_coap_message(
-            msg, [mesh_cop.State(mesh_cop.MeshCopState.ACCEPT)]
-        )
+            msg, [mesh_cop.State(mesh_cop.MeshCopState.ACCEPT)])
 
         # Step 6 - Leader sends a multicast MLE Data Response
         msg = leader_messages.next_mle_message(mle.CommandType.DATA_RESPONSE)
@@ -146,16 +141,14 @@ class Cert_9_2_02_MGMTCommissionerSet(unittest.TestCase):
                         mesh_cop.SteeringData,
                         mesh_cop.BorderAgentLocator,
                     ],
-                )
-            ),
+                )),
         )
 
         # Step 7 - Harness instructs commissioner to send
         # MGMT_COMMISSIONER_SET.req to Leader
         border_agent_locator_tlv = mesh_cop.BorderAgentLocator(0x0400)
         self.nodes[COMMISSIONER].commissioner_mgmtset_with_tlvs(
-            [commissioner_session_id_tlv, border_agent_locator_tlv]
-        )
+            [commissioner_session_id_tlv, border_agent_locator_tlv])
         self.simulator.go(5)
 
         # Step 8 - Leader responds to MGMT_COMMISSIONER_SET.req with
@@ -163,18 +156,15 @@ class Cert_9_2_02_MGMTCommissionerSet(unittest.TestCase):
         leader_messages = self.simulator.get_messages_sent_by(LEADER)
         msg = leader_messages.next_coap_message('2.04')
         command.check_coap_message(
-            msg, [mesh_cop.State(mesh_cop.MeshCopState.REJECT)]
-        )
+            msg, [mesh_cop.State(mesh_cop.MeshCopState.REJECT)])
 
         # Step 9 - Harness instructs commissioner to send
         # MGMT_COMMISSIONER_SET.req to Leader
-        self.nodes[COMMISSIONER].commissioner_mgmtset_with_tlvs(
-            [
-                steering_data_tlv,
-                commissioner_session_id_tlv,
-                border_agent_locator_tlv,
-            ]
-        )
+        self.nodes[COMMISSIONER].commissioner_mgmtset_with_tlvs([
+            steering_data_tlv,
+            commissioner_session_id_tlv,
+            border_agent_locator_tlv,
+        ])
         self.simulator.go(5)
 
         # Step 10 - Leader responds to MGMT_COMMISSIONER_SET.req with
@@ -182,14 +172,12 @@ class Cert_9_2_02_MGMTCommissionerSet(unittest.TestCase):
         leader_messages = self.simulator.get_messages_sent_by(LEADER)
         msg = leader_messages.next_coap_message('2.04')
         command.check_coap_message(
-            msg, [mesh_cop.State(mesh_cop.MeshCopState.REJECT)]
-        )
+            msg, [mesh_cop.State(mesh_cop.MeshCopState.REJECT)])
 
         # Step 11 - Harness instructs commissioner to send
         # MGMT_COMMISSIONER_SET.req to Leader
         self.nodes[COMMISSIONER].commissioner_mgmtset_with_tlvs(
-            [mesh_cop.CommissionerSessionId(0xffff), steering_data_tlv]
-        )
+            [mesh_cop.CommissionerSessionId(0xffff), steering_data_tlv])
         self.simulator.go(5)
 
         # Step 12 - Leader responds to MGMT_COMMISSIONER_SET.req with
@@ -197,18 +185,15 @@ class Cert_9_2_02_MGMTCommissionerSet(unittest.TestCase):
         leader_messages = self.simulator.get_messages_sent_by(LEADER)
         msg = leader_messages.next_coap_message('2.04')
         command.check_coap_message(
-            msg, [mesh_cop.State(mesh_cop.MeshCopState.REJECT)]
-        )
+            msg, [mesh_cop.State(mesh_cop.MeshCopState.REJECT)])
 
         # Step 13 - Harness instructs commissioner to send
         # MGMT_COMMISSIONER_SET.req to Leader
-        self.nodes[COMMISSIONER].commissioner_mgmtset_with_tlvs(
-            [
-                commissioner_session_id_tlv,
-                steering_data_tlv,
-                mesh_cop.Channel(0x0, 0x0),
-            ]
-        )
+        self.nodes[COMMISSIONER].commissioner_mgmtset_with_tlvs([
+            commissioner_session_id_tlv,
+            steering_data_tlv,
+            mesh_cop.Channel(0x0, 0x0),
+        ])
         self.simulator.go(5)
 
         # Step 14 - Leader responds to MGMT_COMMISSIONER_SET.req with
@@ -216,8 +201,7 @@ class Cert_9_2_02_MGMTCommissionerSet(unittest.TestCase):
         leader_messages = self.simulator.get_messages_sent_by(LEADER)
         msg = leader_messages.next_coap_message('2.04')
         command.check_coap_message(
-            msg, [mesh_cop.State(mesh_cop.MeshCopState.ACCEPT)]
-        )
+            msg, [mesh_cop.State(mesh_cop.MeshCopState.ACCEPT)])
 
         # Step 15 - Send ICMPv6 Echo Request to Leader
         leader_rloc = self.nodes[LEADER].get_rloc()

tests/scripts/thread-cert/Cert_9_2_04_ActiveDataset.py

@@ -37,6 +37,7 @@ LEADER = 2
 
 
 class Cert_9_2_04_ActiveDataset(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -45,14 +46,12 @@ class Cert_9_2_04_ActiveDataset(unittest.TestCase):
             self.nodes[i] = node.Node(i, simulator=self.simulator)
 
         self.nodes[COMMISSIONER].set_active_dataset(
-            10, panid=0xface, master_key='000102030405060708090a0b0c0d0e0f'
-        )
+            10, panid=0xface, master_key='000102030405060708090a0b0c0d0e0f')
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
         self.nodes[LEADER].set_active_dataset(
-            10, panid=0xface, master_key='000102030405060708090a0b0c0d0e0f'
-        )
+            10, panid=0xface, master_key='000102030405060708090a0b0c0d0e0f')
         self.nodes[LEADER].set_mode('rsdn')
         self.nodes[LEADER].set_router_selection_jitter(1)
 

tests/scripts/thread-cert/Cert_9_2_07_DelayTimer.py

@@ -48,6 +48,7 @@ COMMISSIONER_PENDING_PANID = 0xafce
 
 
 class Cert_9_2_7_DelayTimer(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -70,9 +71,8 @@ class Cert_9_2_7_DelayTimer(unittest.TestCase):
         self.nodes[LEADER].set_router_selection_jitter(1)
 
         self.nodes[ROUTER].set_active_dataset(ROUTER_ACTIVE_TIMESTAMP)
-        self.nodes[ROUTER].set_pending_dataset(
-            ROUTER_PENDING_TIMESTAMP, ROUTER_PENDING_ACTIVE_TIMESTAMP
-        )
+        self.nodes[ROUTER].set_pending_dataset(ROUTER_PENDING_TIMESTAMP,
+                                               ROUTER_PENDING_ACTIVE_TIMESTAMP)
         self.nodes[ROUTER].set_mode('rsdn')
         self.nodes[ROUTER].set_panid(PANID_INIT)
         self.nodes[ROUTER].set_partition_id(0x1)
@@ -122,26 +122,21 @@ class Cert_9_2_7_DelayTimer(unittest.TestCase):
             panid=COMMISSIONER_PENDING_PANID,
         )
         self.simulator.go(40)
-        self.assertEqual(
-            self.nodes[LEADER].get_panid(), COMMISSIONER_PENDING_PANID
-        )
-        self.assertEqual(
-            self.nodes[COMMISSIONER].get_panid(), COMMISSIONER_PENDING_PANID
-        )
-        self.assertEqual(
-            self.nodes[ROUTER].get_panid(), COMMISSIONER_PENDING_PANID
-        )
+        self.assertEqual(self.nodes[LEADER].get_panid(),
+                         COMMISSIONER_PENDING_PANID)
+        self.assertEqual(self.nodes[COMMISSIONER].get_panid(),
+                         COMMISSIONER_PENDING_PANID)
+        self.assertEqual(self.nodes[ROUTER].get_panid(),
+                         COMMISSIONER_PENDING_PANID)
 
-        self.assertEqual(
-            self.nodes[LEADER].get_channel(), COMMISSIONER_PENDING_CHANNEL
-        )
+        self.assertEqual(self.nodes[LEADER].get_channel(),
+                         COMMISSIONER_PENDING_CHANNEL)
         self.assertEqual(
             self.nodes[COMMISSIONER].get_channel(),
             COMMISSIONER_PENDING_CHANNEL,
         )
-        self.assertEqual(
-            self.nodes[ROUTER].get_channel(), COMMISSIONER_PENDING_CHANNEL
-        )
+        self.assertEqual(self.nodes[ROUTER].get_channel(),
+                         COMMISSIONER_PENDING_CHANNEL)
 
         ipaddrs = self.nodes[ROUTER].get_addrs()
         for ipaddr in ipaddrs:

tests/scripts/thread-cert/Cert_9_2_08_PersistentDatasets.py

@@ -49,6 +49,7 @@ MTDS = [ED, SED]
 
 
 class Cert_9_2_8_PersistentDatasets(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -56,17 +57,17 @@ class Cert_9_2_8_PersistentDatasets(unittest.TestCase):
         for i in range(1, 6):
             self.nodes[i] = node.Node(i, (i in MTDS), simulator=self.simulator)
 
-        self.nodes[COMMISSIONER].set_active_dataset(
-            LEADER_ACTIVE_TIMESTAMP, panid=PANID_INIT, channel=CHANNEL_INIT
-        )
+        self.nodes[COMMISSIONER].set_active_dataset(LEADER_ACTIVE_TIMESTAMP,
+                                                    panid=PANID_INIT,
+                                                    channel=CHANNEL_INIT)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
-        self.nodes[LEADER].set_active_dataset(
-            LEADER_ACTIVE_TIMESTAMP, panid=PANID_INIT, channel=CHANNEL_INIT
-        )
+        self.nodes[LEADER].set_active_dataset(LEADER_ACTIVE_TIMESTAMP,
+                                              panid=PANID_INIT,
+                                              channel=CHANNEL_INIT)
         self.nodes[LEADER].set_mode('rsdn')
         self.nodes[LEADER].add_whitelist(self.nodes[COMMISSIONER].get_addr64())
         self.nodes[LEADER].add_whitelist(self.nodes[ROUTER].get_addr64())
@@ -74,9 +75,9 @@ class Cert_9_2_8_PersistentDatasets(unittest.TestCase):
         self.nodes[LEADER].add_whitelist(self.nodes[SED].get_addr64())
         self.nodes[LEADER].enable_whitelist()
 
-        self.nodes[ROUTER].set_active_dataset(
-            LEADER_ACTIVE_TIMESTAMP, panid=PANID_INIT, channel=CHANNEL_INIT
-        )
+        self.nodes[ROUTER].set_active_dataset(LEADER_ACTIVE_TIMESTAMP,
+                                              panid=PANID_INIT,
+                                              channel=CHANNEL_INIT)
         self.nodes[ROUTER].set_mode('rsdn')
         self._setUpRouter()
 
@@ -149,16 +150,13 @@ class Cert_9_2_8_PersistentDatasets(unittest.TestCase):
 
         self.simulator.go(60)
 
-        self.assertEqual(
-            self.nodes[LEADER].get_panid(), COMMISSIONER_PENDING_PANID
-        )
-        self.assertEqual(
-            self.nodes[COMMISSIONER].get_panid(), COMMISSIONER_PENDING_PANID
-        )
+        self.assertEqual(self.nodes[LEADER].get_panid(),
+                         COMMISSIONER_PENDING_PANID)
+        self.assertEqual(self.nodes[COMMISSIONER].get_panid(),
+                         COMMISSIONER_PENDING_PANID)
 
-        self.assertEqual(
-            self.nodes[LEADER].get_channel(), COMMISSIONER_PENDING_CHANNEL
-        )
+        self.assertEqual(self.nodes[LEADER].get_channel(),
+                         COMMISSIONER_PENDING_CHANNEL)
         self.assertEqual(
             self.nodes[COMMISSIONER].get_channel(),
             COMMISSIONER_PENDING_CHANNEL,
@@ -186,25 +184,18 @@ class Cert_9_2_8_PersistentDatasets(unittest.TestCase):
 
         self.simulator.go(10)
 
-        self.assertEqual(
-            self.nodes[ROUTER].get_panid(), COMMISSIONER_PENDING_PANID
-        )
-        self.assertEqual(
-            self.nodes[ED].get_panid(), COMMISSIONER_PENDING_PANID
-        )
-        self.assertEqual(
-            self.nodes[SED].get_panid(), COMMISSIONER_PENDING_PANID
-        )
+        self.assertEqual(self.nodes[ROUTER].get_panid(),
+                         COMMISSIONER_PENDING_PANID)
+        self.assertEqual(self.nodes[ED].get_panid(), COMMISSIONER_PENDING_PANID)
+        self.assertEqual(self.nodes[SED].get_panid(),
+                         COMMISSIONER_PENDING_PANID)
 
-        self.assertEqual(
-            self.nodes[ROUTER].get_channel(), COMMISSIONER_PENDING_CHANNEL
-        )
-        self.assertEqual(
-            self.nodes[ED].get_channel(), COMMISSIONER_PENDING_CHANNEL
-        )
-        self.assertEqual(
-            self.nodes[SED].get_channel(), COMMISSIONER_PENDING_CHANNEL
-        )
+        self.assertEqual(self.nodes[ROUTER].get_channel(),
+                         COMMISSIONER_PENDING_CHANNEL)
+        self.assertEqual(self.nodes[ED].get_channel(),
+                         COMMISSIONER_PENDING_CHANNEL)
+        self.assertEqual(self.nodes[SED].get_channel(),
+                         COMMISSIONER_PENDING_CHANNEL)
 
         self.simulator.go(5)
 

tests/scripts/thread-cert/Cert_9_2_09_PendingPartition.py

@@ -45,6 +45,7 @@ ROUTER2 = 4
 
 
 class Cert_9_2_09_PendingPartition(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -52,17 +53,17 @@ class Cert_9_2_09_PendingPartition(unittest.TestCase):
         for i in range(1, 5):
             self.nodes[i] = node.Node(i, simulator=self.simulator)
 
-        self.nodes[COMMISSIONER].set_active_dataset(
-            10, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[COMMISSIONER].set_active_dataset(10,
+                                                    channel=CHANNEL_INIT,
+                                                    panid=PANID_INIT)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
-        self.nodes[LEADER].set_active_dataset(
-            10, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[LEADER].set_active_dataset(10,
+                                              channel=CHANNEL_INIT,
+                                              panid=PANID_INIT)
         self.nodes[LEADER].set_mode('rsdn')
         self.nodes[LEADER].set_partition_id(0xffffffff)
         self.nodes[LEADER].add_whitelist(self.nodes[COMMISSIONER].get_addr64())
@@ -70,18 +71,18 @@ class Cert_9_2_09_PendingPartition(unittest.TestCase):
         self.nodes[LEADER].enable_whitelist()
         self.nodes[LEADER].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER1].set_active_dataset(
-            10, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[ROUTER1].set_active_dataset(10,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT)
         self.nodes[ROUTER1].set_mode('rsdn')
         self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[ROUTER1].add_whitelist(self.nodes[ROUTER2].get_addr64())
         self.nodes[ROUTER1].enable_whitelist()
         self.nodes[ROUTER1].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER2].set_active_dataset(
-            10, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[ROUTER2].set_active_dataset(10,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT)
         self.nodes[ROUTER2].set_mode('rsdn')
         self.nodes[ROUTER2].add_whitelist(self.nodes[ROUTER1].get_addr64())
         self.nodes[ROUTER2].enable_whitelist()

tests/scripts/thread-cert/Cert_9_2_10_PendingPartition.py

@@ -48,6 +48,7 @@ MTDS = [ED1, SED1]
 
 
 class Cert_9_2_10_PendingPartition(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -55,17 +56,17 @@ class Cert_9_2_10_PendingPartition(unittest.TestCase):
         for i in range(1, 6):
             self.nodes[i] = node.Node(i, (i in MTDS), simulator=self.simulator)
 
-        self.nodes[COMMISSIONER].set_active_dataset(
-            15, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[COMMISSIONER].set_active_dataset(15,
+                                                    channel=CHANNEL_INIT,
+                                                    panid=PANID_INIT)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
-        self.nodes[LEADER].set_active_dataset(
-            15, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[LEADER].set_active_dataset(15,
+                                              channel=CHANNEL_INIT,
+                                              panid=PANID_INIT)
         self.nodes[LEADER].set_mode('rsdn')
         self.nodes[LEADER].set_partition_id(0xffffffff)
         self.nodes[LEADER].add_whitelist(self.nodes[COMMISSIONER].get_addr64())
@@ -73,9 +74,9 @@ class Cert_9_2_10_PendingPartition(unittest.TestCase):
         self.nodes[LEADER].enable_whitelist()
         self.nodes[LEADER].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER1].set_active_dataset(
-            15, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[ROUTER1].set_active_dataset(15,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT)
         self.nodes[ROUTER1].set_mode('rsdn')
         self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[ROUTER1].add_whitelist(self.nodes[ED1].get_addr64())

tests/scripts/thread-cert/Cert_9_2_11_MasterKey.py

@@ -48,6 +48,7 @@ MTDS = [ED1, SED1]
 
 
 class Cert_9_2_11_MasterKey(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -55,26 +56,29 @@ class Cert_9_2_11_MasterKey(unittest.TestCase):
         for i in range(1, 6):
             self.nodes[i] = node.Node(i, (i in MTDS), simulator=self.simulator)
 
-        self.nodes[COMMISSIONER].set_active_dataset(
-            10, channel=CHANNEL_INIT, panid=PANID_INIT, master_key=KEY1
-        )
+        self.nodes[COMMISSIONER].set_active_dataset(10,
+                                                    channel=CHANNEL_INIT,
+                                                    panid=PANID_INIT,
+                                                    master_key=KEY1)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
-        self.nodes[LEADER].set_active_dataset(
-            10, channel=CHANNEL_INIT, panid=PANID_INIT, master_key=KEY1
-        )
+        self.nodes[LEADER].set_active_dataset(10,
+                                              channel=CHANNEL_INIT,
+                                              panid=PANID_INIT,
+                                              master_key=KEY1)
         self.nodes[LEADER].set_mode('rsdn')
         self.nodes[LEADER].add_whitelist(self.nodes[COMMISSIONER].get_addr64())
         self.nodes[LEADER].add_whitelist(self.nodes[ROUTER1].get_addr64())
         self.nodes[LEADER].enable_whitelist()
         self.nodes[LEADER].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER1].set_active_dataset(
-            10, channel=CHANNEL_INIT, panid=PANID_INIT, master_key=KEY1
-        )
+        self.nodes[ROUTER1].set_active_dataset(10,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT,
+                                               master_key=KEY1)
         self.nodes[ROUTER1].set_mode('rsdn')
         self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[ROUTER1].add_whitelist(self.nodes[ED1].get_addr64())

tests/scripts/thread-cert/Cert_9_2_12_Announce.py

@@ -48,6 +48,7 @@ DATASET2_PANID = 0xafce
 
 
 class Cert_9_2_12_Announce(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -55,34 +56,34 @@ class Cert_9_2_12_Announce(unittest.TestCase):
         for i in range(1, 6):
             self.nodes[i] = node.Node(i, (i == MED), simulator=self.simulator)
 
-        self.nodes[LEADER1].set_active_dataset(
-            DATASET1_TIMESTAMP, channel=DATASET1_CHANNEL, panid=DATASET1_PANID
-        )
+        self.nodes[LEADER1].set_active_dataset(DATASET1_TIMESTAMP,
+                                               channel=DATASET1_CHANNEL,
+                                               panid=DATASET1_PANID)
         self.nodes[LEADER1].set_mode('rsdn')
         self.nodes[LEADER1].add_whitelist(self.nodes[ROUTER1].get_addr64())
         self.nodes[LEADER1].enable_whitelist()
 
-        self.nodes[ROUTER1].set_active_dataset(
-            DATASET1_TIMESTAMP, channel=DATASET1_CHANNEL, panid=DATASET1_PANID
-        )
+        self.nodes[ROUTER1].set_active_dataset(DATASET1_TIMESTAMP,
+                                               channel=DATASET1_CHANNEL,
+                                               panid=DATASET1_PANID)
         self.nodes[ROUTER1].set_mode('rsdn')
         self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER1].get_addr64())
         self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER2].get_addr64())
         self.nodes[ROUTER1].enable_whitelist()
         self.nodes[ROUTER1].set_router_selection_jitter(1)
 
-        self.nodes[LEADER2].set_active_dataset(
-            DATASET2_TIMESTAMP, channel=DATASET2_CHANNEL, panid=DATASET2_PANID
-        )
+        self.nodes[LEADER2].set_active_dataset(DATASET2_TIMESTAMP,
+                                               channel=DATASET2_CHANNEL,
+                                               panid=DATASET2_PANID)
         self.nodes[LEADER2].set_mode('rsdn')
         self.nodes[LEADER2].add_whitelist(self.nodes[ROUTER1].get_addr64())
         self.nodes[LEADER2].add_whitelist(self.nodes[ROUTER2].get_addr64())
         self.nodes[LEADER2].enable_whitelist()
         self.nodes[LEADER2].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER2].set_active_dataset(
-            DATASET2_TIMESTAMP, channel=DATASET2_CHANNEL, panid=DATASET2_PANID
-        )
+        self.nodes[ROUTER2].set_active_dataset(DATASET2_TIMESTAMP,
+                                               channel=DATASET2_CHANNEL,
+                                               panid=DATASET2_PANID)
         self.nodes[ROUTER2].set_mode('rsdn')
         self.nodes[ROUTER2].add_whitelist(self.nodes[LEADER2].get_addr64())
         self.nodes[ROUTER2].add_whitelist(self.nodes[MED].get_addr64())

tests/scripts/thread-cert/Cert_9_2_13_EnergyScan.py

@@ -39,6 +39,7 @@ ED1 = 4
 
 
 class Cert_9_2_13_EnergyScan(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -101,9 +102,7 @@ class Cert_9_2_13_EnergyScan(unittest.TestCase):
                 break
 
         self.assertTrue(self.nodes[COMMISSIONER].ping(ipaddr))
-        self.nodes[COMMISSIONER].energy_scan(
-            0x50000, 0x02, 0x20, 0x3E8, ipaddr
-        )
+        self.nodes[COMMISSIONER].energy_scan(0x50000, 0x02, 0x20, 0x3E8, ipaddr)
 
         ipaddrs = self.nodes[ED1].get_addrs()
         for ipaddr in ipaddrs:
@@ -111,13 +110,10 @@ class Cert_9_2_13_EnergyScan(unittest.TestCase):
                 break
 
         self.assertTrue(self.nodes[COMMISSIONER].ping(ipaddr))
-        self.nodes[COMMISSIONER].energy_scan(
-            0x50000, 0x02, 0x20, 0x3E8, ipaddr
-        )
+        self.nodes[COMMISSIONER].energy_scan(0x50000, 0x02, 0x20, 0x3E8, ipaddr)
 
-        self.nodes[COMMISSIONER].energy_scan(
-            0x50000, 0x02, 0x20, 0x3E8, 'ff33:0040:fdde:ad00:beef:0:0:1'
-        )
+        self.nodes[COMMISSIONER].energy_scan(0x50000, 0x02, 0x20, 0x3E8,
+                                             'ff33:0040:fdde:ad00:beef:0:0:1')
 
         self.assertTrue(self.nodes[COMMISSIONER].ping(ipaddr))
 

tests/scripts/thread-cert/Cert_9_2_14_PanIdQuery.py

@@ -39,6 +39,7 @@ LEADER2 = 4
 
 
 class Cert_9_2_14_PanIdQuery(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -48,17 +49,13 @@ class Cert_9_2_14_PanIdQuery(unittest.TestCase):
 
         self.nodes[COMMISSIONER].set_panid(0xface)
         self.nodes[COMMISSIONER].set_mode('rsdn')
-        self.nodes[COMMISSIONER].add_whitelist(
-            self.nodes[LEADER1].get_addr64()
-        )
+        self.nodes[COMMISSIONER].add_whitelist(self.nodes[LEADER1].get_addr64())
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
         self.nodes[LEADER1].set_panid(0xface)
         self.nodes[LEADER1].set_mode('rsdn')
-        self.nodes[LEADER1].add_whitelist(
-            self.nodes[COMMISSIONER].get_addr64()
-        )
+        self.nodes[LEADER1].add_whitelist(self.nodes[COMMISSIONER].get_addr64())
         self.nodes[LEADER1].add_whitelist(self.nodes[ROUTER1].get_addr64())
         self.nodes[LEADER1].enable_whitelist()
 
@@ -106,9 +103,8 @@ class Cert_9_2_14_PanIdQuery(unittest.TestCase):
 
         self.nodes[COMMISSIONER].panid_query(0xdead, 0xffffffff, ipaddr)
 
-        self.nodes[COMMISSIONER].panid_query(
-            0xdead, 0xffffffff, 'ff33:0040:fdde:ad00:beef:0:0:1'
-        )
+        self.nodes[COMMISSIONER].panid_query(0xdead, 0xffffffff,
+                                             'ff33:0040:fdde:ad00:beef:0:0:1')
 
         self.assertTrue(self.nodes[COMMISSIONER].ping(ipaddr))
 

tests/scripts/thread-cert/Cert_9_2_15_PendingPartition.py

@@ -44,6 +44,7 @@ ROUTER2 = 4
 
 
 class Cert_9_2_15_PendingPartition(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -51,17 +52,17 @@ class Cert_9_2_15_PendingPartition(unittest.TestCase):
         for i in range(1, 5):
             self.nodes[i] = node.Node(i, simulator=self.simulator)
 
-        self.nodes[COMMISSIONER].set_active_dataset(
-            15, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[COMMISSIONER].set_active_dataset(15,
+                                                    channel=CHANNEL_INIT,
+                                                    panid=PANID_INIT)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
-        self.nodes[LEADER].set_active_dataset(
-            15, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[LEADER].set_active_dataset(15,
+                                              channel=CHANNEL_INIT,
+                                              panid=PANID_INIT)
         self.nodes[LEADER].set_mode('rsdn')
         self.nodes[LEADER].set_partition_id(0xffffffff)
         self.nodes[LEADER].add_whitelist(self.nodes[COMMISSIONER].get_addr64())
@@ -69,18 +70,18 @@ class Cert_9_2_15_PendingPartition(unittest.TestCase):
         self.nodes[LEADER].enable_whitelist()
         self.nodes[LEADER].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER1].set_active_dataset(
-            15, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[ROUTER1].set_active_dataset(15,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT)
         self.nodes[ROUTER1].set_mode('rsdn')
         self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[ROUTER1].add_whitelist(self.nodes[ROUTER2].get_addr64())
         self.nodes[ROUTER1].enable_whitelist()
         self.nodes[ROUTER1].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER2].set_active_dataset(
-            15, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[ROUTER2].set_active_dataset(15,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT)
         self.nodes[ROUTER2].set_mode('rsdn')
         self._setUpRouter2()
 

tests/scripts/thread-cert/Cert_9_2_16_ActivePendingPartition.py

@@ -45,6 +45,7 @@ ROUTER2 = 4
 
 
 class Cert_9_2_16_ActivePendingPartition(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -52,17 +53,17 @@ class Cert_9_2_16_ActivePendingPartition(unittest.TestCase):
         for i in range(1, 5):
             self.nodes[i] = node.Node(i, simulator=self.simulator)
 
-        self.nodes[COMMISSIONER].set_active_dataset(
-            1, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[COMMISSIONER].set_active_dataset(1,
+                                                    channel=CHANNEL_INIT,
+                                                    panid=PANID_INIT)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
-        self.nodes[LEADER].set_active_dataset(
-            1, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[LEADER].set_active_dataset(1,
+                                              channel=CHANNEL_INIT,
+                                              panid=PANID_INIT)
         self.nodes[LEADER].set_mode('rsdn')
         self.nodes[LEADER].set_partition_id(0xffffffff)
         self.nodes[LEADER].add_whitelist(self.nodes[COMMISSIONER].get_addr64())
@@ -70,18 +71,18 @@ class Cert_9_2_16_ActivePendingPartition(unittest.TestCase):
         self.nodes[LEADER].enable_whitelist()
         self.nodes[LEADER].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER1].set_active_dataset(
-            1, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[ROUTER1].set_active_dataset(1,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT)
         self.nodes[ROUTER1].set_mode('rsdn')
         self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[ROUTER1].add_whitelist(self.nodes[ROUTER2].get_addr64())
         self.nodes[ROUTER1].enable_whitelist()
         self.nodes[ROUTER1].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER2].set_active_dataset(
-            1, channel=CHANNEL_INIT, panid=PANID_INIT
-        )
+        self.nodes[ROUTER2].set_active_dataset(1,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT)
         self.nodes[ROUTER2].set_mode('rsdn')
         self._setUpRouter2()
 
@@ -135,27 +136,22 @@ class Cert_9_2_16_ActivePendingPartition(unittest.TestCase):
         )
         self.simulator.go(5)
 
-        self.nodes[COMMISSIONER].send_mgmt_active_set(
-            active_timestamp=15, network_name='threadCert'
-        )
+        self.nodes[COMMISSIONER].send_mgmt_active_set(active_timestamp=15,
+                                                      network_name='threadCert')
         self.simulator.go(100)
 
         self.nodes[ROUTER2].start()
         self.simulator.go(5)
         self.assertEqual(self.nodes[ROUTER2].get_state(), 'router')
 
-        self.assertEqual(
-            self.nodes[COMMISSIONER].get_network_name(), NETWORK_NAME_FINAL
-        )
-        self.assertEqual(
-            self.nodes[LEADER].get_network_name(), NETWORK_NAME_FINAL
-        )
-        self.assertEqual(
-            self.nodes[ROUTER1].get_network_name(), NETWORK_NAME_FINAL
-        )
-        self.assertEqual(
-            self.nodes[ROUTER2].get_network_name(), NETWORK_NAME_FINAL
-        )
+        self.assertEqual(self.nodes[COMMISSIONER].get_network_name(),
+                         NETWORK_NAME_FINAL)
+        self.assertEqual(self.nodes[LEADER].get_network_name(),
+                         NETWORK_NAME_FINAL)
+        self.assertEqual(self.nodes[ROUTER1].get_network_name(),
+                         NETWORK_NAME_FINAL)
+        self.assertEqual(self.nodes[ROUTER2].get_network_name(),
+                         NETWORK_NAME_FINAL)
 
         self.simulator.go(100)
 

tests/scripts/thread-cert/Cert_9_2_17_Orphan.py

@@ -43,6 +43,7 @@ ED1 = 3
 
 
 class Cert_9_2_17_Orphan(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -50,17 +51,19 @@ class Cert_9_2_17_Orphan(unittest.TestCase):
         for i in range(1, 4):
             self.nodes[i] = node.Node(i, (i == ED1), simulator=self.simulator)
 
-        self.nodes[LEADER1].set_active_dataset(
-            10, channel=CHANNEL1, panid=PANID_INIT, channel_mask=CHANNEL_MASK
-        )
+        self.nodes[LEADER1].set_active_dataset(10,
+                                               channel=CHANNEL1,
+                                               panid=PANID_INIT,
+                                               channel_mask=CHANNEL_MASK)
         self.nodes[LEADER1].set_mode('rsdn')
         self.nodes[LEADER1].add_whitelist(self.nodes[ED1].get_addr64())
         self.nodes[LEADER1].enable_whitelist()
         self.nodes[LEADER1].set_router_selection_jitter(1)
 
-        self.nodes[LEADER2].set_active_dataset(
-            20, channel=CHANNEL2, panid=PANID_INIT, channel_mask=CHANNEL_MASK
-        )
+        self.nodes[LEADER2].set_active_dataset(20,
+                                               channel=CHANNEL2,
+                                               panid=PANID_INIT,
+                                               channel_mask=CHANNEL_MASK)
         self.nodes[LEADER2].set_mode('rsdn')
         self.nodes[LEADER2].enable_whitelist()
         self.nodes[LEADER2].set_router_selection_jitter(1)

tests/scripts/thread-cert/Cert_9_2_18_RollBackActiveTimestamp.py

@@ -49,6 +49,7 @@ MTDS = [ED1, SED1]
 
 
 class Cert_9_2_18_RollBackActiveTimestamp(unittest.TestCase):
+
     def setUp(self):
         self.simulator = config.create_default_simulator()
 
@@ -56,17 +57,19 @@ class Cert_9_2_18_RollBackActiveTimestamp(unittest.TestCase):
         for i in range(1, 7):
             self.nodes[i] = node.Node(i, (i in MTDS), simulator=self.simulator)
 
-        self.nodes[COMMISSIONER].set_active_dataset(
-            1, channel=CHANNEL_INIT, panid=PANID_INIT, master_key=KEY1
-        )
+        self.nodes[COMMISSIONER].set_active_dataset(1,
+                                                    channel=CHANNEL_INIT,
+                                                    panid=PANID_INIT,
+                                                    master_key=KEY1)
         self.nodes[COMMISSIONER].set_mode('rsdn')
         self.nodes[COMMISSIONER].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[COMMISSIONER].enable_whitelist()
         self.nodes[COMMISSIONER].set_router_selection_jitter(1)
 
-        self.nodes[LEADER].set_active_dataset(
-            1, channel=CHANNEL_INIT, panid=PANID_INIT, master_key=KEY1
-        )
+        self.nodes[LEADER].set_active_dataset(1,
+                                              channel=CHANNEL_INIT,
+                                              panid=PANID_INIT,
+                                              master_key=KEY1)
         self.nodes[LEADER].set_mode('rsdn')
         self.nodes[LEADER].set_partition_id(0xffffffff)
         self.nodes[LEADER].add_whitelist(self.nodes[COMMISSIONER].get_addr64())
@@ -74,9 +77,10 @@ class Cert_9_2_18_RollBackActiveTimestamp(unittest.TestCase):
         self.nodes[LEADER].enable_whitelist()
         self.nodes[LEADER].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER1].set_active_dataset(
-            1, channel=CHANNEL_INIT, panid=PANID_INIT, master_key=KEY1
-        )
+        self.nodes[ROUTER1].set_active_dataset(1,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT,
+                                               master_key=KEY1)
         self.nodes[ROUTER1].set_mode('rsdn')
         self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64())
         self.nodes[ROUTER1].add_whitelist(self.nodes[ROUTER2].get_addr64())
@@ -85,9 +89,10 @@ class Cert_9_2_18_RollBackActiveTimestamp(unittest.TestCase):
         self.nodes[ROUTER1].enable_whitelist()
         self.nodes[ROUTER1].set_router_selection_jitter(1)
 
-        self.nodes[ROUTER2].set_active_dataset(
-            1, channel=CHANNEL_INIT, panid=PANID_INIT, master_key=KEY1
-        )
+        self.nodes[ROUTER2].set_active_dataset(1,
+                                               channel=CHANNEL_INIT,
+                                               panid=PANID_INIT,
+                                               master_key=KEY1)
         self.nodes[ROUTER2].set_mode('rsdn')
         self.nodes[ROUTER2].add_whitelist(self.nodes[ROUTER1].get_addr64())
         self.nodes[ROUTER2].enable_whitelist()
@@ -136,9 +141,8 @@ class Cert_9_2_18_RollBackActiveTimestamp(unittest.TestCase):
         self.simulator.go(5)
         self.assertEqual(self.nodes[SED1].get_state(), 'child')
 
-        self.nodes[COMMISSIONER].send_mgmt_active_set(
-            active_timestamp=20000, network_name='GRL'
-        )
+        self.nodes[COMMISSIONER].send_mgmt_active_set(active_timestamp=20000,
+                                                      network_name='GRL')
         self.simulator.go(5)
 
         self.nodes[COMMISSIONER].send_mgmt_pending_set(

tests/scripts/thread-cert/Test_Cli.py

@@ -35,6 +35,7 @@ LEADER = 1
 
 
 class Cert_Cli(unittest.TestCase):
+
     def setUp(self):
         self.nodes = {}
         self.nodes[LEADER] = node.Node(LEADER)

tests/scripts/thread-cert/Test_MacScan.py

@@ -37,6 +37,7 @@ ROUTER = 2
 
 
 class Test_MacScan(unittest.TestCase):
+
     def setUp(self):
         self.nodes = {}
         for i in range(1, 3):

tests/scripts/thread-cert/coap.py

@@ -61,7 +61,6 @@ class CoapOptionsTypes(IntEnum):
 
 
 class CoapOptionHeader(object):
-
     """ Class representing CoAP optiona header. """
 
     def __init__(self, delta, length):
@@ -104,7 +103,6 @@ class CoapOptionHeader(object):
 
 
 class CoapOption(object):
-
     """ Class representing CoAP option. """
 
     def __init__(self, _type, value):
@@ -120,13 +118,11 @@ class CoapOption(object):
         return self._value
 
     def __repr__(self):
-        return "CoapOption(type={}, value={})".format(
-            self.type, hexlify(self.value)
-        )
+        return "CoapOption(type={}, value={})".format(self.type,
+                                                      hexlify(self.value))
 
 
 class CoapOptionsFactory(object):
-
     """ Factory that produces CoAP options. """
 
     def parse(self, data, message_info):
@@ -148,7 +144,6 @@ class CoapOptionsFactory(object):
 
 
 class CoapCode(object):
-
     """ Class representing CoAP code. """
 
     def __init__(self, code):
@@ -182,8 +177,7 @@ class CoapCode(object):
     @property
     def dotted(self):
         return ".".join(
-            ["{:01d}".format(self._class), "{:02d}".format(self.detail)]
-        )
+            ["{:01d}".format(self._class), "{:02d}".format(self.detail)])
 
     def __eq__(self, other):
         if isinstance(other, int):
@@ -196,16 +190,14 @@ class CoapCode(object):
             return self.code == other.code
 
         else:
-            raise TypeError(
-                "Could not compare {} and {}".format(type(self), type(other))
-            )
+            raise TypeError("Could not compare {} and {}".format(
+                type(self), type(other)))
 
     def __repr__(self):
         return self.dotted
 
 
 class CoapMessage(object):
-
     """ Class representing CoAP message. """
 
     def __init__(
@@ -266,21 +258,21 @@ class CoapMessage(object):
 
     def __repr__(self):
         options_str = ", ".join([repr(opt) for opt in self.options])
-        return ("CoapMessage(version={}, type={}, code={}, message_id={}, token={}, options=[{}], payload={},",
-                "uri-path='{}')").format(
-            self.version,
-            CoapMessageType.name[self.type],
-            self.code,
-            self.message_id,
-            hexlify(self.token),
-            options_str,
-            self.payload,
-            self.uri_path,
-        )
+        return (
+            "CoapMessage(version={}, type={}, code={}, message_id={}, token={}, options=[{}], payload={},",
+            "uri-path='{}')").format(
+                self.version,
+                CoapMessageType.name[self.type],
+                self.code,
+                self.message_id,
+                hexlify(self.token),
+                options_str,
+                self.payload,
+                self.uri_path,
+            )
 
 
 class CoapMessageProxy(object):
-
     """ Proxy class of CoAP message.
 
     The main idea behind this class is to delay parsing payload. Due to architecture of the existing solution
@@ -299,8 +291,7 @@ class CoapMessageProxy(object):
         self._message_info = message_info
         self._mid_to_uri_path_binder = mid_to_uri_path_binder
         self._uri_path_based_payload_factories = (
-            uri_path_based_payload_factories
-        )
+            uri_path_based_payload_factories)
 
     @property
     def version(self):
@@ -334,14 +325,12 @@ class CoapMessageProxy(object):
     def payload(self):
         try:
             binded_uri_path = self._mid_to_uri_path_binder.get_uri_path_for(
-                self.message_id, self.token
-            )
+                self.message_id, self.token)
 
             factory = self._uri_path_based_payload_factories[binded_uri_path]
 
-            return factory.parse(
-                io.BytesIO(self._coap_message.payload), self._message_info
-            )
+            return factory.parse(io.BytesIO(self._coap_message.payload),
+                                 self._message_info)
 
         except RuntimeError:
             return self._coap_message.payload
@@ -352,14 +341,21 @@ class CoapMessageProxy(object):
 
     def __repr__(self):
         options_str = ", ".join([repr(opt) for opt in self.options])
-        return ("CoapMessageProxy(version={}, type={}, code={}, message_id={}, token={}, options=[{}], payload={},",
-                "uri-path='{}')").format(
-            self.version, self.type, self.code, self.message_id, hexlify(self.token), options_str, self.payload,
-            self.uri_path, )
+        return (
+            "CoapMessageProxy(version={}, type={}, code={}, message_id={}, token={}, options=[{}], payload={},",
+            "uri-path='{}')").format(
+                self.version,
+                self.type,
+                self.code,
+                self.message_id,
+                hexlify(self.token),
+                options_str,
+                self.payload,
+                self.uri_path,
+            )
 
 
 class CoapMessageIdToUriPathBinder:
-
     """ Class binds message id and token with URI path. """
 
     def __init__(self):
@@ -373,12 +369,11 @@ class CoapMessageIdToUriPathBinder:
             return self._uri_path_binds[message_id][hexlify(token)]
         except KeyError:
             raise RuntimeError(
-                "Could not find URI PATH for message_id: {} and token: {}".format(
-                    message_id, hexlify(token)))
+                "Could not find URI PATH for message_id: {} and token: {}".
+                format(message_id, hexlify(token)))
 
 
 class CoapMessageFactory(object):
-
     """ Factory that produces CoAP messages. """
 
     def __init__(
@@ -389,8 +384,7 @@ class CoapMessageFactory(object):
     ):
         self._options_factory = options_factory
         self._uri_path_based_payload_factories = (
-            uri_path_based_payload_factories
-        )
+            uri_path_based_payload_factories)
         self._mid_to_uri_path_binder = message_id_to_uri_path_binder
 
     def _uri_path_from(self, options):
@@ -416,8 +410,7 @@ class CoapMessageFactory(object):
 
     def parse(self, data, message_info):
         version, _type, token_length = self._parse_initial_byte(
-            data, message_info
-        )
+            data, message_info)
 
         code = CoapCode(ord(data.read(1)))
         message_id = struct.unpack(">H", data.read(2))[0]
@@ -428,8 +421,7 @@ class CoapMessageFactory(object):
         uri_path = self._uri_path_from(options)
         if uri_path is not None:
             self._mid_to_uri_path_binder.add_uri_path_for(
-                message_id, token, uri_path
-            )
+                message_id, token, uri_path)
 
         coap_message = CoapMessage(
             version,

tests/scripts/thread-cert/command.py

@@ -58,22 +58,19 @@ def check_address_query(command_msg, source_node, destination_address):
 
     source_rloc = source_node.get_ip6_address(config.ADDRESS_TYPE.RLOC)
     assert (
-        ipv6.ip_address(source_rloc)
-        == command_msg.ipv6_packet.ipv6_header.source_address
-    ), (
-        "Error: The IPv6 source address is not the RLOC of the originator. The source node's rloc is: "
-        + str(ipv6.ip_address(source_rloc))
-        + ", but the source_address in command msg is: "
-        + str(command_msg.ipv6_packet.ipv6_header.source_address)
-    )
+        ipv6.ip_address(
+            source_rloc) == command_msg.ipv6_packet.ipv6_header.source_address
+    ), ("Error: The IPv6 source address is not the RLOC of the originator. The source node's rloc is: "
+        + str(ipv6.ip_address(source_rloc)) +
+        ", but the source_address in command msg is: " +
+        str(command_msg.ipv6_packet.ipv6_header.source_address))
 
     if isinstance(destination_address, bytearray):
         destination_address = bytes(destination_address)
 
-    assert (
-        ipv6.ip_address(destination_address)
-        == command_msg.ipv6_packet.ipv6_header.destination_address
-    ), "Error: The IPv6 destination address is not expected."
+    assert (ipv6.ip_address(destination_address) ==
+            command_msg.ipv6_packet.ipv6_header.destination_address
+           ), "Error: The IPv6 destination address is not expected."
 
 
 def check_address_notification(command_msg, source_node, destination_node):
@@ -86,22 +83,20 @@ def check_address_notification(command_msg, source_node, destination_node):
 
     source_rloc = source_node.get_ip6_address(config.ADDRESS_TYPE.RLOC)
     assert (
-        ipv6.ip_address(source_rloc)
-        == command_msg.ipv6_packet.ipv6_header.source_address
+        ipv6.ip_address(
+            source_rloc) == command_msg.ipv6_packet.ipv6_header.source_address
     ), "Error: The IPv6 source address is not the RLOC of the originator."
 
     destination_rloc = destination_node.get_ip6_address(
-        config.ADDRESS_TYPE.RLOC
-    )
+        config.ADDRESS_TYPE.RLOC)
     assert (
-        ipv6.ip_address(destination_rloc)
-        == command_msg.ipv6_packet.ipv6_header.destination_address
+        ipv6.ip_address(destination_rloc) ==
+        command_msg.ipv6_packet.ipv6_header.destination_address
     ), "Error: The IPv6 destination address is not the RLOC of the destination."
 
 
-def check_address_error_notification(
-    command_msg, source_node, destination_address
-):
+def check_address_error_notification(command_msg, source_node,
+                                     destination_address):
     """Verify source_node sent a properly formatted Address Error Notification command message to destination_address.
     """
     command_msg.assertCoapMessageRequestUriPath('/a/ae')
@@ -110,27 +105,23 @@ def check_address_error_notification(
 
     source_rloc = source_node.get_ip6_address(config.ADDRESS_TYPE.RLOC)
     assert (
-        ipv6.ip_address(source_rloc)
-        == command_msg.ipv6_packet.ipv6_header.source_address
-    ), (
-        "Error: The IPv6 source address is not the RLOC of the originator. The source node's rloc is: "
-        + str(ipv6.ip_address(source_rloc))
-        + ", but the source_address in command msg is: "
-        + str(command_msg.ipv6_packet.ipv6_header.source_address)
-    )
+        ipv6.ip_address(
+            source_rloc) == command_msg.ipv6_packet.ipv6_header.source_address
+    ), ("Error: The IPv6 source address is not the RLOC of the originator. The source node's rloc is: "
+        + str(ipv6.ip_address(source_rloc)) +
+        ", but the source_address in command msg is: " +
+        str(command_msg.ipv6_packet.ipv6_header.source_address))
 
     if isinstance(destination_address, bytearray):
         destination_address = bytes(destination_address)
 
     assert (
-        ipv6.ip_address(destination_address)
-        == command_msg.ipv6_packet.ipv6_header.destination_address
-    ), (
-        "Error: The IPv6 destination address is not expected. The destination node's rloc is: "
-        + str(ipv6.ip_address(destination_address))
-        + ", but the destination_address in command msg is: "
-        + str(command_msg.ipv6_packet.ipv6_header.destination_address)
-    )
+        ipv6.ip_address(destination_address) ==
+        command_msg.ipv6_packet.ipv6_header.destination_address
+    ), ("Error: The IPv6 destination address is not expected. The destination node's rloc is: "
+        + str(ipv6.ip_address(destination_address)) +
+        ", but the destination_address in command msg is: " +
+        str(command_msg.ipv6_packet.ipv6_header.destination_address))
 
 
 def check_address_solicit(command_msg, was_router):
@@ -151,12 +142,10 @@ def check_address_release(command_msg, destination_node):
     command_msg.assertCoapMessageContainsTlv(network_layer.MacExtendedAddress)
 
     destination_rloc = destination_node.get_ip6_address(
-        config.ADDRESS_TYPE.RLOC
-    )
-    assert (
-        ipv6.ip_address(destination_rloc)
-        == command_msg.ipv6_packet.ipv6_header.destination_address
-    ), "Error: The destination is not RLOC address"
+        config.ADDRESS_TYPE.RLOC)
+    assert (ipv6.ip_address(destination_rloc) ==
+            command_msg.ipv6_packet.ipv6_header.destination_address
+           ), "Error: The destination is not RLOC address"
 
 
 def check_tlv_request_tlv(command_msg, check_type, tlv_id):
@@ -165,14 +154,12 @@ def check_tlv_request_tlv(command_msg, check_type, tlv_id):
     tlv_request_tlv = command_msg.get_mle_message_tlv(mle.TlvRequest)
 
     if check_type == CheckType.CONTAIN:
-        assert (
-            tlv_request_tlv is not None
-        ), "Error: The msg doesn't contain TLV Request TLV"
+        assert (tlv_request_tlv is
+                not None), "Error: The msg doesn't contain TLV Request TLV"
         assert any(
             tlv_id == tlv for tlv in tlv_request_tlv.tlvs
         ), "Error: The msg doesn't contain TLV Request TLV ID: {}".format(
-            tlv_id
-        )
+            tlv_id)
 
     elif check_type == CheckType.NOT_CONTAIN:
         if tlv_request_tlv is not None:
@@ -186,8 +173,7 @@ def check_tlv_request_tlv(command_msg, check_type, tlv_id):
                 print("TLV Request TLV contains TLV ID: {}".format(tlv_id))
             else:
                 print(
-                    "TLV Request TLV doesn't contain TLV ID: {}".format(tlv_id)
-                )
+                    "TLV Request TLV doesn't contain TLV ID: {}".format(tlv_id))
         else:
             print("The msg doesn't contain TLV Request TLV")
 
@@ -211,15 +197,11 @@ def check_link_request(
     check_mle_optional_tlv(command_msg, source_address, mle.SourceAddress)
     check_mle_optional_tlv(command_msg, leader_data, mle.LeaderData)
 
-    check_tlv_request_tlv(
-        command_msg, tlv_request_address16, mle.TlvType.ADDRESS16
-    )
-    check_tlv_request_tlv(
-        command_msg, tlv_request_route64, mle.TlvType.ROUTE64
-    )
-    check_tlv_request_tlv(
-        command_msg, tlv_request_link_margin, mle.TlvType.LINK_MARGIN
-    )
+    check_tlv_request_tlv(command_msg, tlv_request_address16,
+                          mle.TlvType.ADDRESS16)
+    check_tlv_request_tlv(command_msg, tlv_request_route64, mle.TlvType.ROUTE64)
+    check_tlv_request_tlv(command_msg, tlv_request_link_margin,
+                          mle.TlvType.LINK_MARGIN)
 
 
 def check_link_accept(
@@ -247,17 +229,14 @@ def check_link_accept(
     check_mle_optional_tlv(command_msg, address16, mle.Address16)
     check_mle_optional_tlv(command_msg, route64, mle.Route64)
 
-    check_tlv_request_tlv(
-        command_msg, tlv_request_link_margin, mle.TlvType.LINK_MARGIN
-    )
+    check_tlv_request_tlv(command_msg, tlv_request_link_margin,
+                          mle.TlvType.LINK_MARGIN)
 
     destination_link_local = destination_node.get_ip6_address(
-        config.ADDRESS_TYPE.LINK_LOCAL
-    )
+        config.ADDRESS_TYPE.LINK_LOCAL)
     assert (
-        ipv6.ip_address(destination_link_local)
-        == command_msg.ipv6_packet.ipv6_header.destination_address
-    ), "Error: The destination is unexpected"
+        ipv6.ip_address(destination_link_local) == command_msg.ipv6_packet.
+        ipv6_header.destination_address), "Error: The destination is unexpected"
 
 
 def check_icmp_path(sniffer, path, nodes, icmp_type=ipv6.ICMP_ECHO_REQUEST):
@@ -273,9 +252,8 @@ def check_icmp_path(sniffer, path, nodes, icmp_type=ipv6.ICMP_ECHO_REQUEST):
         if i < len_path - 1:
             next_node = nodes[path[i + 1]]
             next_node_rloc16 = next_node.get_addr16()
-            assert (
-                next_node_rloc16 == node_icmp_msg.mac_header.dest_address.rloc
-            ), "Error: The path is unexpected."
+            assert (next_node_rloc16 == node_icmp_msg.mac_header.dest_address.
+                    rloc), "Error: The path is unexpected."
         else:
             return True
 
@@ -327,8 +305,7 @@ def check_mle_optional_tlv(command_msg, type, tlv):
 def check_mle_advertisement(command_msg):
     command_msg.assertSentWithHopLimit(255)
     command_msg.assertSentToDestinationAddress(
-        config.LINK_LOCAL_ALL_NODES_ADDRESS
-    )
+        config.LINK_LOCAL_ALL_NODES_ADDRESS)
     command_msg.assertMleMessageContainsTlv(mle.SourceAddress)
     command_msg.assertMleMessageContainsTlv(mle.LeaderData)
     command_msg.assertMleMessageContainsTlv(mle.Route64)
@@ -344,8 +321,7 @@ def check_parent_request(command_msg, is_first_request):
 
     command_msg.assertSentWithHopLimit(255)
     command_msg.assertSentToDestinationAddress(
-        config.LINK_LOCAL_ALL_ROUTERS_ADDRESS
-    )
+        config.LINK_LOCAL_ALL_ROUTERS_ADDRESS)
     command_msg.assertMleMessageContainsTlv(mle.Mode)
     command_msg.assertMleMessageContainsTlv(mle.Challenge)
     command_msg.assertMleMessageContainsTlv(mle.Version)
@@ -398,21 +374,15 @@ def check_child_id_request(
 
     check_mle_optional_tlv(command_msg, tlv_request, mle.TlvRequest)
     check_mle_optional_tlv(command_msg, mle_frame_counter, mle.MleFrameCounter)
-    check_mle_optional_tlv(
-        command_msg, address_registration, mle.AddressRegistration
-    )
+    check_mle_optional_tlv(command_msg, address_registration,
+                           mle.AddressRegistration)
     check_mle_optional_tlv(command_msg, active_timestamp, mle.ActiveTimestamp)
-    check_mle_optional_tlv(
-        command_msg, pending_timestamp, mle.PendingTimestamp
-    )
+    check_mle_optional_tlv(command_msg, pending_timestamp, mle.PendingTimestamp)
     check_mle_optional_tlv(command_msg, route64, mle.Route64)
 
-    check_tlv_request_tlv(
-        command_msg, CheckType.CONTAIN, mle.TlvType.ADDRESS16
-    )
-    check_tlv_request_tlv(
-        command_msg, CheckType.CONTAIN, mle.TlvType.NETWORK_DATA
-    )
+    check_tlv_request_tlv(command_msg, CheckType.CONTAIN, mle.TlvType.ADDRESS16)
+    check_tlv_request_tlv(command_msg, CheckType.CONTAIN,
+                          mle.TlvType.NETWORK_DATA)
 
 
 def check_child_id_response(
@@ -434,36 +404,29 @@ def check_child_id_response(
 
     check_mle_optional_tlv(command_msg, route64, mle.Route64)
     check_mle_optional_tlv(command_msg, network_data, mle.NetworkData)
-    check_mle_optional_tlv(
-        command_msg, address_registration, mle.AddressRegistration
-    )
+    check_mle_optional_tlv(command_msg, address_registration,
+                           mle.AddressRegistration)
     check_mle_optional_tlv(command_msg, active_timestamp, mle.ActiveTimestamp)
-    check_mle_optional_tlv(
-        command_msg, pending_timestamp, mle.PendingTimestamp
-    )
-    check_mle_optional_tlv(
-        command_msg, active_operational_dataset, mle.ActiveOperationalDataset
-    )
-    check_mle_optional_tlv(
-        command_msg, pending_operational_dataset, mle.PendingOperationalDataset
-    )
+    check_mle_optional_tlv(command_msg, pending_timestamp, mle.PendingTimestamp)
+    check_mle_optional_tlv(command_msg, active_operational_dataset,
+                           mle.ActiveOperationalDataset)
+    check_mle_optional_tlv(command_msg, pending_operational_dataset,
+                           mle.PendingOperationalDataset)
 
     if network_data_check is not None:
         network_data_tlv = command_msg.assertMleMessageContainsTlv(
-            mle.NetworkData
-        )
+            mle.NetworkData)
         network_data_check.check(network_data_tlv)
 
 
 def check_prefix(prefix):
     """Verify if a prefix contains 6loWPAN sub-TLV and border router sub-TLV
     """
+    assert contains_tlv(prefix.sub_tlvs, network_data.BorderRouter
+                       ), 'Prefix doesn\'t contain a border router sub-TLV!'
     assert contains_tlv(
-        prefix.sub_tlvs, network_data.BorderRouter
-    ), 'Prefix doesn\'t contain a border router sub-TLV!'
-    assert contains_tlv(
-        prefix.sub_tlvs, network_data.LowpanId
-    ), 'Prefix doesn\'t contain a LowpanId sub-TLV!'
+        prefix.sub_tlvs,
+        network_data.LowpanId), 'Prefix doesn\'t contain a LowpanId sub-TLV!'
 
 
 def check_child_update_request_from_child(
@@ -483,9 +446,8 @@ def check_child_update_request_from_child(
     check_mle_optional_tlv(command_msg, leader_data, mle.LeaderData)
     check_mle_optional_tlv(command_msg, challenge, mle.Challenge)
     check_mle_optional_tlv(command_msg, time_out, mle.Timeout)
-    check_mle_optional_tlv(
-        command_msg, address_registration, mle.AddressRegistration
-    )
+    check_mle_optional_tlv(command_msg, address_registration,
+                           mle.AddressRegistration)
     check_mle_optional_tlv(command_msg, tlv_request_tlv, mle.TlvRequest)
     check_mle_optional_tlv(command_msg, active_timestamp, mle.ActiveTimestamp)
 
@@ -510,13 +472,10 @@ def check_router_id_cached(node, router_id, cached=True):
     eidcaches = node.get_eidcaches()
     if cached:
         assert any(
-            router_id == (int(rloc, 16) >> 10) for (_, rloc) in eidcaches
-        )
+            router_id == (int(rloc, 16) >> 10) for (_, rloc) in eidcaches)
     else:
-        assert (
-            any(router_id == (int(rloc, 16) >> 10) for (_, rloc) in eidcaches)
-            is False
-        )
+        assert (any(router_id == (int(rloc, 16) >> 10)
+                    for (_, rloc) in eidcaches) is False)
 
 
 def contains_tlv(sub_tlvs, tlv_type):
@@ -528,10 +487,9 @@ def contains_tlv(sub_tlvs, tlv_type):
 def contains_tlvs(sub_tlvs, tlv_types):
     """Verify if all types of tlv in a list are included in a sub-tlv list.
     """
-    return all(
-        (any(isinstance(sub_tlv, tlv_type) for sub_tlv in sub_tlvs))
-        for tlv_type in tlv_types
-    )
+    return all((any(isinstance(sub_tlv, tlv_type)
+                    for sub_tlv in sub_tlvs))
+               for tlv_type in tlv_types)
 
 
 def check_secure_mle_key_id_mode(command_msg, key_id_mode):
@@ -541,9 +499,9 @@ def check_secure_mle_key_id_mode(command_msg, key_id_mode):
     assert command_msg.mle.aux_sec_hdr.key_id_mode == key_id_mode
 
 
-def check_data_response(
-    command_msg, network_data_check=None, active_timestamp=CheckType.OPTIONAL
-):
+def check_data_response(command_msg,
+                        network_data_check=None,
+                        active_timestamp=CheckType.OPTIONAL):
     """Verify a properly formatted Data Response command message.
     """
     check_secure_mle_key_id_mode(command_msg, 0x02)
@@ -552,8 +510,7 @@ def check_data_response(
     check_mle_optional_tlv(command_msg, active_timestamp, mle.ActiveTimestamp)
     if network_data_check is not None:
         network_data_tlv = command_msg.assertMleMessageContainsTlv(
-            mle.NetworkData
-        )
+            mle.NetworkData)
         network_data_check.check(network_data_tlv)
 
 
@@ -596,16 +553,14 @@ def check_child_update_response(
     command_msg.assertMleMessageContainsTlv(mle.SourceAddress)
     command_msg.assertMleMessageContainsTlv(mle.Mode)
     check_mle_optional_tlv(command_msg, timeout, mle.Timeout)
-    check_mle_optional_tlv(
-        command_msg, address_registration, mle.AddressRegistration
-    )
+    check_mle_optional_tlv(command_msg, address_registration,
+                           mle.AddressRegistration)
     check_mle_optional_tlv(command_msg, address16, mle.Address16)
     check_mle_optional_tlv(command_msg, leader_data, mle.LeaderData)
     check_mle_optional_tlv(command_msg, network_data, mle.NetworkData)
     check_mle_optional_tlv(command_msg, response, mle.Response)
-    check_mle_optional_tlv(
-        command_msg, link_layer_frame_counter, mle.LinkLayerFrameCounter
-    )
+    check_mle_optional_tlv(command_msg, link_layer_frame_counter,
+                           mle.LinkLayerFrameCounter)
     check_mle_optional_tlv(command_msg, mle_frame_counter, mle.MleFrameCounter)
 
     if (address_registration == CheckType.CONTAIN) and len(CIDs) > 0:
@@ -614,8 +569,7 @@ def check_child_update_response(
 
 def _check_address_registration(command_msg, CIDs=[]):
     addresses = command_msg.assertMleMessageContainsTlv(
-        mle.AddressRegistration
-    ).addresses
+        mle.AddressRegistration).addresses
     for cid in CIDs:
         found = False
         for address in addresses:
@@ -623,9 +577,7 @@ def _check_address_registration(command_msg, CIDs=[]):
                 if cid == address.cid:
                     found = True
                     break
-        assert found, "AddressRegistration TLV doesn't have CID {} ".format(
-            cid
-        )
+        assert found, "AddressRegistration TLV doesn't have CID {} ".format(cid)
 
 
 def get_sub_tlv(tlvs, tlv_type):
@@ -637,9 +589,8 @@ def get_sub_tlv(tlvs, tlv_type):
 def check_address_registration_tlv(addr_reg_tlv, address_set):
     """Verify all addresses contained in address_set are contained in add_reg_tlv
     """
-    assert all(
-        addr in addr_reg_tlv.addresses for addr in address_set
-    ), 'Some addresses are not included in AddressRegistration TLV'
+    assert all(addr in addr_reg_tlv.addresses for addr in address_set
+              ), 'Some addresses are not included in AddressRegistration TLV'
 
 
 def assert_contains_tlv(tlvs, check_type, tlv_type):
@@ -663,36 +614,32 @@ def check_discovery_request(command_msg):
     """
     assert not isinstance(command_msg.mle, mle.MleMessageSecured)
     tlvs = command_msg.assertMleMessageContainsTlv(mle.ThreadDiscovery).tlvs
-    request = assert_contains_tlv(
-        tlvs, CheckType.CONTAIN, mesh_cop.DiscoveryRequest
-    )
+    request = assert_contains_tlv(tlvs, CheckType.CONTAIN,
+                                  mesh_cop.DiscoveryRequest)
     assert request.version == config.PROTOCOL_VERSION
 
 
-def check_discovery_response(
-    command_msg, request_src_addr, steering_data=CheckType.OPTIONAL
-):
+def check_discovery_response(command_msg,
+                             request_src_addr,
+                             steering_data=CheckType.OPTIONAL):
     """Verify a properly formatted Thread Discovery Response command message.
     """
     assert not isinstance(command_msg.mle, mle.MleMessageSecured)
     assert (
-        command_msg.mac_header.src_address.type == common.MacAddressType.LONG
-    )
+        command_msg.mac_header.src_address.type == common.MacAddressType.LONG)
     assert command_msg.mac_header.dest_address == request_src_addr
 
     tlvs = command_msg.assertMleMessageContainsTlv(mle.ThreadDiscovery).tlvs
-    response = assert_contains_tlv(
-        tlvs, CheckType.CONTAIN, mesh_cop.DiscoveryResponse
-    )
+    response = assert_contains_tlv(tlvs, CheckType.CONTAIN,
+                                   mesh_cop.DiscoveryResponse)
     assert response.version == config.PROTOCOL_VERSION
     assert_contains_tlv(tlvs, CheckType.CONTAIN, mesh_cop.ExtendedPanid)
     assert_contains_tlv(tlvs, CheckType.CONTAIN, mesh_cop.NetworkName)
     assert_contains_tlv(tlvs, steering_data, mesh_cop.SteeringData)
     assert_contains_tlv(tlvs, steering_data, mesh_cop.JoinerUdpPort)
 
-    check_type = (
-        CheckType.CONTAIN if response.native_flag else CheckType.OPTIONAL
-    )
+    check_type = (CheckType.CONTAIN
+                  if response.native_flag else CheckType.OPTIONAL)
     assert_contains_tlv(tlvs, check_type, mesh_cop.CommissionerUdpPort)
 
 
@@ -700,9 +647,8 @@ def get_joiner_udp_port_in_discovery_response(command_msg):
     """Get the udp port specified in a DISCOVERY RESPONSE message
     """
     tlvs = command_msg.assertMleMessageContainsTlv(mle.ThreadDiscovery).tlvs
-    udp_port_tlv = assert_contains_tlv(
-        tlvs, CheckType.CONTAIN, mesh_cop.JoinerUdpPort
-    )
+    udp_port_tlv = assert_contains_tlv(tlvs, CheckType.CONTAIN,
+                                       mesh_cop.JoinerUdpPort)
     return udp_port_tlv.udp_port
 
 
@@ -713,9 +659,8 @@ def check_joiner_commissioning_messages(commissioning_messages):
     assert len(commissioning_messages) >= 2
     join_fin_req = commissioning_messages[0]
     assert join_fin_req.type == mesh_cop.MeshCopMessageType.JOIN_FIN_REQ
-    assert_contains_tlv(
-        join_fin_req.tlvs, CheckType.NOT_CONTAIN, mesh_cop.ProvisioningUrl
-    )
+    assert_contains_tlv(join_fin_req.tlvs, CheckType.NOT_CONTAIN,
+                        mesh_cop.ProvisioningUrl)
     join_ent_rsp = commissioning_messages[1]
     assert join_ent_rsp.type == mesh_cop.MeshCopMessageType.JOIN_ENT_RSP
 
@@ -723,19 +668,15 @@ def check_joiner_commissioning_messages(commissioning_messages):
 def check_commissioner_commissioning_messages(commissioning_messages):
     """Verify COAP messages sent by commissioner while commissioning process.
     """
-    assert any(
-        msg.type == mesh_cop.MeshCopMessageType.JOIN_FIN_RSP
-        for msg in commissioning_messages
-    )
+    assert any(msg.type == mesh_cop.MeshCopMessageType.JOIN_FIN_RSP
+               for msg in commissioning_messages)
 
 
 def check_joiner_router_commissioning_messages(commissioning_messages):
     """Verify COAP messages sent by joiner router while commissioning process.
     """
-    assert any(
-        msg.type == mesh_cop.MeshCopMessageType.JOIN_ENT_NTF
-        for msg in commissioning_messages
-    )
+    assert any(msg.type == mesh_cop.MeshCopMessageType.JOIN_ENT_NTF
+               for msg in commissioning_messages)
     return None
 
 
@@ -746,9 +687,9 @@ def check_payload_same(tp1, tp2):
     assert len(tp1) == len(tp2)
     for tlv in tp2:
         peer_tlv = get_sub_tlv(tp1, type(tlv))
-        assert (
-            peer_tlv is not None and peer_tlv == tlv
-        ), 'peer_tlv:{}, tlv:{} type:{}'.format(peer_tlv, tlv, type(tlv))
+        assert (peer_tlv is not None and
+                peer_tlv == tlv), 'peer_tlv:{}, tlv:{} type:{}'.format(
+                    peer_tlv, tlv, type(tlv))
 
 
 def check_coap_message(msg, payloads, dest_addrs=None):
@@ -763,28 +704,28 @@ def check_coap_message(msg, payloads, dest_addrs=None):
 
 
 class SinglePrefixCheck:
+
     def __init__(self, prefix=None, border_router_16=None):
         self._prefix = prefix
         self._border_router_16 = border_router_16
 
     def check(self, prefix_tlv):
-        border_router_tlv = assert_contains_tlv(
-            prefix_tlv.sub_tlvs, CheckType.CONTAIN, network_data.BorderRouter
-        )
-        assert_contains_tlv(
-            prefix_tlv.sub_tlvs, CheckType.CONTAIN, network_data.LowpanId
-        )
+        border_router_tlv = assert_contains_tlv(prefix_tlv.sub_tlvs,
+                                                CheckType.CONTAIN,
+                                                network_data.BorderRouter)
+        assert_contains_tlv(prefix_tlv.sub_tlvs, CheckType.CONTAIN,
+                            network_data.LowpanId)
         result = True
         if self._prefix is not None:
             result &= self._prefix == binascii.hexlify(prefix_tlv.prefix)
         if self._border_router_16 is not None:
             result &= (
-                self._border_router_16 == border_router_tlv.border_router_16
-            )
+                self._border_router_16 == border_router_tlv.border_router_16)
         return result
 
 
 class PrefixesCheck:
+
     def __init__(self, prefix_cnt=0, prefix_check_list=[]):
         self._prefix_cnt = prefix_cnt
         self._prefix_check_list = prefix_check_list
@@ -792,9 +733,8 @@ class PrefixesCheck:
     def check(self, prefix_tlvs):
         # if prefix_cnt is given, then check count only
         if self._prefix_cnt > 0:
-            assert (
-                len(prefix_tlvs) >= self._prefix_cnt
-            ), 'prefix count is less than expected'
+            assert (len(prefix_tlvs) >=
+                    self._prefix_cnt), 'prefix count is less than expected'
         else:
             for prefix_check in self._prefix_check_list:
                 found = False
@@ -806,21 +746,22 @@ class PrefixesCheck:
 
 
 class CommissioningDataCheck:
+
     def __init__(self, stable=None, sub_tlv_type_list=[]):
         self._stable = stable
         self._sub_tlv_type_list = sub_tlv_type_list
 
     def check(self, commissioning_data_tlv):
         if self._stable is not None:
-            assert (
-                self._stable == commissioning_data_tlv.stable
-            ), 'Commissioning Data stable flag is not correct'
-        assert contains_tlvs(
-            commissioning_data_tlv.sub_tlvs, self._sub_tlv_type_list
-        ), 'Some sub tlvs are missing in Commissioning Data'
+            assert (self._stable == commissioning_data_tlv.stable
+                   ), 'Commissioning Data stable flag is not correct'
+        assert contains_tlvs(commissioning_data_tlv.sub_tlvs,
+                             self._sub_tlv_type_list
+                            ), 'Some sub tlvs are missing in Commissioning Data'
 
 
 class NetworkDataCheck:
+
     def __init__(self, prefixes_check=None, commissioning_data_check=None):
         self._prefixes_check = prefixes_check
         self._commissioning_data_check = commissioning_data_check
@@ -828,8 +769,7 @@ class NetworkDataCheck:
     def check(self, network_data_tlv):
         if self._prefixes_check is not None:
             prefix_tlvs = [
-                tlv
-                for tlv in network_data_tlv.tlvs
+                tlv for tlv in network_data_tlv.tlvs
                 if isinstance(tlv, network_data.Prefix)
             ]
             self._prefixes_check.check(prefix_tlvs)

tests/scripts/thread-cert/common.py

@@ -37,14 +37,12 @@ import ipaddress
 
 def expect_the_same_class(self, other):
     if not isinstance(other, self.__class__):
-        raise TypeError(
-            "Expected the same class. Got {} and {}".format(
-                type(self), type(other)
-            )
-        )
+        raise TypeError("Expected the same class. Got {} and {}".format(
+            type(self), type(other)))
 
 
 class MessageInfo(object):
+
     def __init__(self):
         self.aux_sec_hdr = None
         self.aux_sec_hdr_bytes = None
@@ -109,6 +107,7 @@ class MacAddressType(IntEnum):
 
 
 class MacAddress(object):
+
     def __init__(self, mac_address, _type, big_endian=True):
         if _type == MacAddressType.SHORT:
             length = 2
@@ -135,15 +134,11 @@ class MacAddress(object):
 
     def convert_to_iid(self):
         if self._type == MacAddressType.SHORT:
-            return (
-                bytearray([0x00, 0x00, 0x00, 0xff, 0xfe, 0x00])
-                + self._mac_address[:2]
-            )
+            return (bytearray([0x00, 0x00, 0x00, 0xff, 0xfe, 0x00]) +
+                    self._mac_address[:2])
         elif self._type == MacAddressType.LONG:
-            return (
-                bytearray([self._mac_address[0] ^ 0x02])
-                + self._mac_address[1:]
-            )
+            return (bytearray([self._mac_address[0] ^ 0x02]) +
+                    self._mac_address[1:])
         else:
             raise RuntimeError(
                 "Could not convert to IID. Invalid MAC address type: {}".format(
@@ -153,8 +148,8 @@ class MacAddress(object):
     def from_eui64(cls, eui64, big_endian=True):
         if not isinstance(eui64, bytearray):
             raise RuntimeError(
-                "Could not create MAC address from EUI64. Invalid data type: {}".format(
-                    type(eui64)))
+                "Could not create MAC address from EUI64. Invalid data type: {}"
+                .format(type(eui64)))
 
         return cls(eui64, MacAddressType.LONG)
 
@@ -166,17 +161,15 @@ class MacAddress(object):
             mac_address = rloc16[:2]
         else:
             raise RuntimeError(
-                "Could not create MAC address from RLOC16. Invalid data type: {}".format(
-                    type(rloc16)))
+                "Could not create MAC address from RLOC16. Invalid data type: {}"
+                .format(type(rloc16)))
 
         return cls(mac_address, MacAddressType.SHORT)
 
     def __eq__(self, other):
         return (self.type == other.type) and (
-            self.mac_address == other.mac_address
-        )
+            self.mac_address == other.mac_address)
 
     def __repr__(self):
         return "MacAddress(mac_address=b'{}', type={})".format(
-            hexlify(self.mac_address), MacAddressType(self._type)
-        )
+            hexlify(self.mac_address), MacAddressType(self._type))

tests/scripts/thread-cert/config.py

@@ -56,30 +56,27 @@ REALM_LOCAL_ALL_ROUTERS_ADDRESS = 'ff03::2'
 LINK_LOCAL_ALL_NODES_ADDRESS = 'ff02::1'
 LINK_LOCAL_ALL_ROUTERS_ADDRESS = 'ff02::2'
 
-DEFAULT_MASTER_KEY = bytearray(
-    [
-        0x00,
-        0x11,
-        0x22,
-        0x33,
-        0x44,
-        0x55,
-        0x66,
-        0x77,
-        0x88,
-        0x99,
-        0xaa,
-        0xbb,
-        0xcc,
-        0xdd,
-        0xee,
-        0xff,
-    ]
-)
+DEFAULT_MASTER_KEY = bytearray([
+    0x00,
+    0x11,
+    0x22,
+    0x33,
+    0x44,
+    0x55,
+    0x66,
+    0x77,
+    0x88,
+    0x99,
+    0xaa,
+    0xbb,
+    0xcc,
+    0xdd,
+    0xee,
+    0xff,
+])
 
-ADDRESS_TYPE = Enum(
-    'ADDRESS_TYPE', ('LINK_LOCAL', 'GLOBAL', 'RLOC', 'ALOC', 'ML_EID')
-)
+ADDRESS_TYPE = Enum('ADDRESS_TYPE',
+                    ('LINK_LOCAL', 'GLOBAL', 'RLOC', 'ALOC', 'ML_EID'))
 RSSI = {
     'LINK_QULITY_0': -100,
     'LINK_QULITY_1': -95,
@@ -108,19 +105,21 @@ PROTOCOL_VERSION = 2
 
 def create_default_network_data_prefix_sub_tlvs_factories():
     return {
-        network_data.TlvType.HAS_ROUTE: network_data.HasRouteFactory(
-            routes_factory=network_data.RoutesFactory(
-                route_factory=network_data.RouteFactory()
-            )
-        ),
-        network_data.TlvType.BORDER_ROUTER: network_data.BorderRouterFactory(),
-        network_data.TlvType.LOWPAN_ID: network_data.LowpanIdFactory(),
+        network_data.TlvType.HAS_ROUTE:
+            network_data.HasRouteFactory(
+                routes_factory=network_data.RoutesFactory(
+                    route_factory=network_data.RouteFactory())),
+        network_data.TlvType.BORDER_ROUTER:
+            network_data.BorderRouterFactory(),
+        network_data.TlvType.LOWPAN_ID:
+            network_data.LowpanIdFactory(),
     }
 
 
 def create_default_network_data_prefix_sub_tlvs_factory():
     return network_data.PrefixSubTlvsFactory(
-        sub_tlvs_factories=create_default_network_data_prefix_sub_tlvs_factories())
+        sub_tlvs_factories=create_default_network_data_prefix_sub_tlvs_factories(
+        ))
 
 
 def create_default_network_data_service_sub_tlvs_factories():
@@ -129,53 +128,62 @@ def create_default_network_data_service_sub_tlvs_factories():
 
 def create_default_network_data_service_sub_tlvs_factory():
     return network_data.ServiceSubTlvsFactory(
-        sub_tlvs_factories=create_default_network_data_service_sub_tlvs_factories())
+        sub_tlvs_factories=
+        create_default_network_data_service_sub_tlvs_factories())
 
 
 def create_default_network_data_commissioning_data_sub_tlvs_factories():
     return {
-        mesh_cop.TlvType.CHANNEL: mesh_cop.ChannelFactory(),
-        mesh_cop.TlvType.STEERING_DATA: mesh_cop.SteeringDataFactory(),
-        mesh_cop.TlvType.BORDER_AGENT_LOCATOR: mesh_cop.BorderAgentLocatorFactory(),
-        mesh_cop.TlvType.COMMISSIONER_SESSION_ID: mesh_cop.CommissionerSessionIdFactory(),
-        mesh_cop.TlvType.COMMISSIONER_UDP_PORT: mesh_cop.CommissionerUdpPortFactory(),
+        mesh_cop.TlvType.CHANNEL:
+            mesh_cop.ChannelFactory(),
+        mesh_cop.TlvType.STEERING_DATA:
+            mesh_cop.SteeringDataFactory(),
+        mesh_cop.TlvType.BORDER_AGENT_LOCATOR:
+            mesh_cop.BorderAgentLocatorFactory(),
+        mesh_cop.TlvType.COMMISSIONER_SESSION_ID:
+            mesh_cop.CommissionerSessionIdFactory(),
+        mesh_cop.TlvType.COMMISSIONER_UDP_PORT:
+            mesh_cop.CommissionerUdpPortFactory(),
     }
 
 
 def create_default_network_data_commissioning_data_sub_tlvs_factory():
     return network_data.CommissioningDataSubTlvsFactory(
-        sub_tlvs_factories=create_default_network_data_commissioning_data_sub_tlvs_factories())
+        sub_tlvs_factories=
+        create_default_network_data_commissioning_data_sub_tlvs_factories())
 
 
 def create_default_network_data_tlvs_factories():
     return {
-        network_data.TlvType.PREFIX: network_data.PrefixFactory(
-            sub_tlvs_factory=create_default_network_data_prefix_sub_tlvs_factory()
-        ),
-        network_data.TlvType.SERVICE: network_data.ServiceFactory(
-            sub_tlvs_factory=create_default_network_data_service_sub_tlvs_factory()
-        ),
-        network_data.TlvType.COMMISSIONING: network_data.CommissioningDataFactory(
-            sub_tlvs_factory=create_default_network_data_commissioning_data_sub_tlvs_factory()
-        ),
+        network_data.TlvType.PREFIX:
+            network_data.PrefixFactory(
+                sub_tlvs_factory=
+                create_default_network_data_prefix_sub_tlvs_factory()),
+        network_data.TlvType.SERVICE:
+            network_data.ServiceFactory(
+                sub_tlvs_factory=
+                create_default_network_data_service_sub_tlvs_factory()),
+        network_data.TlvType.COMMISSIONING:
+            network_data.CommissioningDataFactory(
+                sub_tlvs_factory=
+                create_default_network_data_commissioning_data_sub_tlvs_factory(
+                )),
     }
 
 
 def create_default_network_data_tlvs_factory():
     return network_data.NetworkDataTlvsFactory(
-        sub_tlvs_factories=create_default_network_data_tlvs_factories()
-    )
+        sub_tlvs_factories=create_default_network_data_tlvs_factories())
 
 
 def create_default_mle_tlv_route64_factory():
-    return mle.Route64Factory(
-        link_quality_and_route_data_factory=mle.LinkQualityAndRouteDataFactory())
+    return mle.Route64Factory(link_quality_and_route_data_factory=mle.
+                              LinkQualityAndRouteDataFactory())
 
 
 def create_default_mle_tlv_network_data_factory():
     return mle.NetworkDataFactory(
-        network_data_tlvs_factory=create_default_network_data_tlvs_factory()
-    )
+        network_data_tlvs_factory=create_default_network_data_tlvs_factory())
 
 
 def create_default_mle_tlv_address_registration_factory():
@@ -187,148 +195,226 @@ def create_default_mle_tlv_address_registration_factory():
 
 def create_default_mle_tlv_thread_discovery_factory():
     return mle.ThreadDiscoveryFactory(
-        thread_discovery_tlvs_factory=create_default_thread_discovery_tlvs_factory())
+        thread_discovery_tlvs_factory=
+        create_default_thread_discovery_tlvs_factory())
 
 
 def create_default_thread_discovery_tlvs_factory():
     return mesh_cop.ThreadDiscoveryTlvsFactory(
-        sub_tlvs_factories=create_default_thread_discovery_sub_tlvs_factories()
-    )
+        sub_tlvs_factories=create_default_thread_discovery_sub_tlvs_factories())
 
 
 def create_default_thread_discovery_sub_tlvs_factories():
     return {
-        mesh_cop.TlvType.DISCOVERY_REQUEST: mesh_cop.DiscoveryRequestFactory(),
-        mesh_cop.TlvType.DISCOVERY_RESPONSE: mesh_cop.DiscoveryResponseFactory(),
-        mesh_cop.TlvType.EXTENDED_PANID: mesh_cop.ExtendedPanidFactory(),
-        mesh_cop.TlvType.NETWORK_NAME: mesh_cop.NetworkNameFactory(),
-        mesh_cop.TlvType.STEERING_DATA: mesh_cop.SteeringDataFactory(),
-        mesh_cop.TlvType.JOINER_UDP_PORT: mesh_cop.JoinerUdpPortFactory(),
-        mesh_cop.TlvType.COMMISSIONER_UDP_PORT: mesh_cop.CommissionerUdpPortFactory(),
+        mesh_cop.TlvType.DISCOVERY_REQUEST:
+            mesh_cop.DiscoveryRequestFactory(),
+        mesh_cop.TlvType.DISCOVERY_RESPONSE:
+            mesh_cop.DiscoveryResponseFactory(),
+        mesh_cop.TlvType.EXTENDED_PANID:
+            mesh_cop.ExtendedPanidFactory(),
+        mesh_cop.TlvType.NETWORK_NAME:
+            mesh_cop.NetworkNameFactory(),
+        mesh_cop.TlvType.STEERING_DATA:
+            mesh_cop.SteeringDataFactory(),
+        mesh_cop.TlvType.JOINER_UDP_PORT:
+            mesh_cop.JoinerUdpPortFactory(),
+        mesh_cop.TlvType.COMMISSIONER_UDP_PORT:
+            mesh_cop.CommissionerUdpPortFactory(),
     }
 
 
 def create_default_mle_tlvs_factories():
     return {
-        mle.TlvType.SOURCE_ADDRESS: mle.SourceAddressFactory(),
-        mle.TlvType.MODE: mle.ModeFactory(),
-        mle.TlvType.TIMEOUT: mle.TimeoutFactory(),
-        mle.TlvType.CHALLENGE: mle.ChallengeFactory(),
-        mle.TlvType.RESPONSE: mle.ResponseFactory(),
-        mle.TlvType.LINK_LAYER_FRAME_COUNTER: mle.LinkLayerFrameCounterFactory(),
-        mle.TlvType.MLE_FRAME_COUNTER: mle.MleFrameCounterFactory(),
-        mle.TlvType.ROUTE64: create_default_mle_tlv_route64_factory(),
-        mle.TlvType.ADDRESS16: mle.Address16Factory(),
-        mle.TlvType.LEADER_DATA: mle.LeaderDataFactory(),
-        mle.TlvType.NETWORK_DATA: create_default_mle_tlv_network_data_factory(),
-        mle.TlvType.TLV_REQUEST: mle.TlvRequestFactory(),
-        mle.TlvType.SCAN_MASK: mle.ScanMaskFactory(),
-        mle.TlvType.CONNECTIVITY: mle.ConnectivityFactory(),
-        mle.TlvType.LINK_MARGIN: mle.LinkMarginFactory(),
-        mle.TlvType.STATUS: mle.StatusFactory(),
-        mle.TlvType.VERSION: mle.VersionFactory(),
-        mle.TlvType.ADDRESS_REGISTRATION: create_default_mle_tlv_address_registration_factory(),
-        mle.TlvType.CHANNEL: mle.ChannelFactory(),
-        mle.TlvType.PANID: mle.PanIdFactory(),
-        mle.TlvType.ACTIVE_TIMESTAMP: mle.ActiveTimestampFactory(),
-        mle.TlvType.PENDING_TIMESTAMP: mle.PendingTimestampFactory(),
-        mle.TlvType.ACTIVE_OPERATIONAL_DATASET: mle.ActiveOperationalDatasetFactory(),
-        mle.TlvType.PENDING_OPERATIONAL_DATASET: mle.PendingOperationalDatasetFactory(),
-        mle.TlvType.TIME_REQUEST: mle.TimeRequestFactory(),
-        mle.TlvType.TIME_PARAMETER: mle.TimeParameterFactory(),
-        mle.TlvType.THREAD_DISCOVERY: create_default_mle_tlv_thread_discovery_factory(),
+        mle.TlvType.SOURCE_ADDRESS:
+            mle.SourceAddressFactory(),
+        mle.TlvType.MODE:
+            mle.ModeFactory(),
+        mle.TlvType.TIMEOUT:
+            mle.TimeoutFactory(),
+        mle.TlvType.CHALLENGE:
+            mle.ChallengeFactory(),
+        mle.TlvType.RESPONSE:
+            mle.ResponseFactory(),
+        mle.TlvType.LINK_LAYER_FRAME_COUNTER:
+            mle.LinkLayerFrameCounterFactory(),
+        mle.TlvType.MLE_FRAME_COUNTER:
+            mle.MleFrameCounterFactory(),
+        mle.TlvType.ROUTE64:
+            create_default_mle_tlv_route64_factory(),
+        mle.TlvType.ADDRESS16:
+            mle.Address16Factory(),
+        mle.TlvType.LEADER_DATA:
+            mle.LeaderDataFactory(),
+        mle.TlvType.NETWORK_DATA:
+            create_default_mle_tlv_network_data_factory(),
+        mle.TlvType.TLV_REQUEST:
+            mle.TlvRequestFactory(),
+        mle.TlvType.SCAN_MASK:
+            mle.ScanMaskFactory(),
+        mle.TlvType.CONNECTIVITY:
+            mle.ConnectivityFactory(),
+        mle.TlvType.LINK_MARGIN:
+            mle.LinkMarginFactory(),
+        mle.TlvType.STATUS:
+            mle.StatusFactory(),
+        mle.TlvType.VERSION:
+            mle.VersionFactory(),
+        mle.TlvType.ADDRESS_REGISTRATION:
+            create_default_mle_tlv_address_registration_factory(),
+        mle.TlvType.CHANNEL:
+            mle.ChannelFactory(),
+        mle.TlvType.PANID:
+            mle.PanIdFactory(),
+        mle.TlvType.ACTIVE_TIMESTAMP:
+            mle.ActiveTimestampFactory(),
+        mle.TlvType.PENDING_TIMESTAMP:
+            mle.PendingTimestampFactory(),
+        mle.TlvType.ACTIVE_OPERATIONAL_DATASET:
+            mle.ActiveOperationalDatasetFactory(),
+        mle.TlvType.PENDING_OPERATIONAL_DATASET:
+            mle.PendingOperationalDatasetFactory(),
+        mle.TlvType.TIME_REQUEST:
+            mle.TimeRequestFactory(),
+        mle.TlvType.TIME_PARAMETER:
+            mle.TimeParameterFactory(),
+        mle.TlvType.THREAD_DISCOVERY:
+            create_default_mle_tlv_thread_discovery_factory(),
     }
 
 
 def create_default_mle_crypto_engine(master_key):
     return net_crypto.CryptoEngine(
-        crypto_material_creator=net_crypto.MleCryptoMaterialCreator(master_key)
-    )
+        crypto_material_creator=net_crypto.MleCryptoMaterialCreator(master_key))
 
 
 def create_default_mle_message_factory(master_key):
     return mle.MleMessageFactory(
         aux_sec_hdr_factory=net_crypto.AuxiliarySecurityHeaderFactory(),
         mle_command_factory=mle.MleCommandFactory(
-            tlvs_factories=create_default_mle_tlvs_factories()
-        ),
+            tlvs_factories=create_default_mle_tlvs_factories()),
         crypto_engine=create_default_mle_crypto_engine(master_key),
     )
 
 
 def create_deafult_network_tlvs_factories():
     return {
-        network_layer.TlvType.TARGET_EID: network_layer.TargetEidFactory(),
-        network_layer.TlvType.MAC_EXTENDED_ADDRESS: network_layer.MacExtendedAddressFactory(),
-        network_layer.TlvType.RLOC16: network_layer.Rloc16Factory(),
-        network_layer.TlvType.ML_EID: network_layer.MlEidFactory(),
-        network_layer.TlvType.STATUS: network_layer.StatusFactory(),
-        network_layer.TlvType.TIME_SINCE_LAST_TRANSACTION: network_layer.TimeSinceLastTransactionFactory(),
-        network_layer.TlvType.ROUTER_MASK: network_layer.RouterMaskFactory(),
-        network_layer.TlvType.ND_OPTION: network_layer.NdOptionFactory(),
-        network_layer.TlvType.ND_DATA: network_layer.NdDataFactory(),
-        network_layer.TlvType.THREAD_NETWORK_DATA: network_layer.ThreadNetworkDataFactory(
-            create_default_network_data_tlvs_factory()
-        ),
-        network_layer.TlvType.XTAL_ACCURACY: network_layer.XtalAccuracyFactory(),
+        network_layer.TlvType.TARGET_EID:
+            network_layer.TargetEidFactory(),
+        network_layer.TlvType.MAC_EXTENDED_ADDRESS:
+            network_layer.MacExtendedAddressFactory(),
+        network_layer.TlvType.RLOC16:
+            network_layer.Rloc16Factory(),
+        network_layer.TlvType.ML_EID:
+            network_layer.MlEidFactory(),
+        network_layer.TlvType.STATUS:
+            network_layer.StatusFactory(),
+        network_layer.TlvType.TIME_SINCE_LAST_TRANSACTION:
+            network_layer.TimeSinceLastTransactionFactory(),
+        network_layer.TlvType.ROUTER_MASK:
+            network_layer.RouterMaskFactory(),
+        network_layer.TlvType.ND_OPTION:
+            network_layer.NdOptionFactory(),
+        network_layer.TlvType.ND_DATA:
+            network_layer.NdDataFactory(),
+        network_layer.TlvType.THREAD_NETWORK_DATA:
+            network_layer.ThreadNetworkDataFactory(
+                create_default_network_data_tlvs_factory()),
+        network_layer.TlvType.XTAL_ACCURACY:
+            network_layer.XtalAccuracyFactory(),
         # Routing information are distributed in a Thread network by MLE Routing TLV
         # which is in fact MLE Route64 TLV. Thread specificaton v1.1. - Chapter 5.20
-        network_layer.TlvType.MLE_ROUTING: create_default_mle_tlv_route64_factory(),
+        network_layer.TlvType.MLE_ROUTING:
+            create_default_mle_tlv_route64_factory(),
     }
 
 
 def create_default_network_tlvs_factory():
     return SubTlvsFactory(
-        sub_tlvs_factories=create_deafult_network_tlvs_factories()
-    )
+        sub_tlvs_factories=create_deafult_network_tlvs_factories())
 
 
 def create_default_mesh_cop_tlvs_factories():
     return {
-        mesh_cop.TlvType.CHANNEL: mesh_cop.ChannelFactory(),
-        mesh_cop.TlvType.PAN_ID: mesh_cop.PanidFactory(),
-        mesh_cop.TlvType.EXTENDED_PANID: mesh_cop.ExtendedPanidFactory(),
-        mesh_cop.TlvType.NETWORK_NAME: mesh_cop.NetworkNameFactory(),
-        mesh_cop.TlvType.PSKC: mesh_cop.PSKcFactory(),
-        mesh_cop.TlvType.NETWORK_MASTER_KEY: mesh_cop.NetworkMasterKeyFactory(),
-        mesh_cop.TlvType.NETWORK_KEY_SEQUENCE_COUNTER: mesh_cop.NetworkKeySequenceCounterFactory(),
-        mesh_cop.TlvType.NETWORK_MESH_LOCAL_PREFIX: mesh_cop.NetworkMeshLocalPrefixFactory(),
-        mesh_cop.TlvType.STEERING_DATA: mesh_cop.SteeringDataFactory(),
-        mesh_cop.TlvType.BORDER_AGENT_LOCATOR: mesh_cop.BorderAgentLocatorFactory(),
-        mesh_cop.TlvType.COMMISSIONER_ID: mesh_cop.CommissionerIdFactory(),
-        mesh_cop.TlvType.COMMISSIONER_SESSION_ID: mesh_cop.CommissionerSessionIdFactory(),
-        mesh_cop.TlvType.SECURITY_POLICY: mesh_cop.SecurityPolicyFactory(),
-        mesh_cop.TlvType.GET: mesh_cop.GetFactory(),
-        mesh_cop.TlvType.ACTIVE_TIMESTAMP: mesh_cop.ActiveTimestampFactory(),
-        mesh_cop.TlvType.COMMISSIONER_UDP_PORT: mesh_cop.CommissionerUdpPortFactory(),
-        mesh_cop.TlvType.STATE: mesh_cop.StateFactory(),
-        mesh_cop.TlvType.JOINER_DTLS_ENCAPSULATION: mesh_cop.JoinerDtlsEncapsulationFactory(),
-        mesh_cop.TlvType.JOINER_UDP_PORT: mesh_cop.JoinerUdpPortFactory(),
-        mesh_cop.TlvType.JOINER_IID: mesh_cop.JoinerIIDFactory(),
-        mesh_cop.TlvType.JOINER_ROUTER_LOCATOR: mesh_cop.JoinerRouterLocatorFactory(),
-        mesh_cop.TlvType.JOINER_ROUTER_KEK: mesh_cop.JoinerRouterKEKFactory(),
-        mesh_cop.TlvType.PROVISIONING_URL: mesh_cop.ProvisioningUrlFactory(),
-        mesh_cop.TlvType.VENDOR_NAME: mesh_cop.VendorNameFactory(),
-        mesh_cop.TlvType.VENDOR_MODEL: mesh_cop.VendorModelFactory(),
-        mesh_cop.TlvType.VENDOR_SW_VERSION: mesh_cop.VendorSWVersionFactory(),
-        mesh_cop.TlvType.VENDOR_DATA: mesh_cop.VendorDataFactory(),
-        mesh_cop.TlvType.VENDOR_STACK_VERSION: mesh_cop.VendorStackVersionFactory(),
-        mesh_cop.TlvType.UDP_ENCAPSULATION: mesh_cop.UdpEncapsulationFactory(),
-        mesh_cop.TlvType.IPV6_ADDRESS: mesh_cop.Ipv6AddressFactory(),
-        mesh_cop.TlvType.PENDING_TIMESTAMP: mesh_cop.PendingTimestampFactory(),
-        mesh_cop.TlvType.DELAY_TIMER: mesh_cop.DelayTimerFactory(),
-        mesh_cop.TlvType.CHANNEL_MASK: mesh_cop.ChannelMaskFactory(),
-        mesh_cop.TlvType.COUNT: mesh_cop.CountFactory(),
-        mesh_cop.TlvType.PERIOD: mesh_cop.PeriodFactory(),
-        mesh_cop.TlvType.SCAN_DURATION: mesh_cop.ScanDurationFactory(),
-        mesh_cop.TlvType.ENERGY_LIST: mesh_cop.EnergyListFactory(),
+        mesh_cop.TlvType.CHANNEL:
+            mesh_cop.ChannelFactory(),
+        mesh_cop.TlvType.PAN_ID:
+            mesh_cop.PanidFactory(),
+        mesh_cop.TlvType.EXTENDED_PANID:
+            mesh_cop.ExtendedPanidFactory(),
+        mesh_cop.TlvType.NETWORK_NAME:
+            mesh_cop.NetworkNameFactory(),
+        mesh_cop.TlvType.PSKC:
+            mesh_cop.PSKcFactory(),
+        mesh_cop.TlvType.NETWORK_MASTER_KEY:
+            mesh_cop.NetworkMasterKeyFactory(),
+        mesh_cop.TlvType.NETWORK_KEY_SEQUENCE_COUNTER:
+            mesh_cop.NetworkKeySequenceCounterFactory(),
+        mesh_cop.TlvType.NETWORK_MESH_LOCAL_PREFIX:
+            mesh_cop.NetworkMeshLocalPrefixFactory(),
+        mesh_cop.TlvType.STEERING_DATA:
+            mesh_cop.SteeringDataFactory(),
+        mesh_cop.TlvType.BORDER_AGENT_LOCATOR:
+            mesh_cop.BorderAgentLocatorFactory(),
+        mesh_cop.TlvType.COMMISSIONER_ID:
+            mesh_cop.CommissionerIdFactory(),
+        mesh_cop.TlvType.COMMISSIONER_SESSION_ID:
+            mesh_cop.CommissionerSessionIdFactory(),
+        mesh_cop.TlvType.SECURITY_POLICY:
+            mesh_cop.SecurityPolicyFactory(),
+        mesh_cop.TlvType.GET:
+            mesh_cop.GetFactory(),
+        mesh_cop.TlvType.ACTIVE_TIMESTAMP:
+            mesh_cop.ActiveTimestampFactory(),
+        mesh_cop.TlvType.COMMISSIONER_UDP_PORT:
+            mesh_cop.CommissionerUdpPortFactory(),
+        mesh_cop.TlvType.STATE:
+            mesh_cop.StateFactory(),
+        mesh_cop.TlvType.JOINER_DTLS_ENCAPSULATION:
+            mesh_cop.JoinerDtlsEncapsulationFactory(),
+        mesh_cop.TlvType.JOINER_UDP_PORT:
+            mesh_cop.JoinerUdpPortFactory(),
+        mesh_cop.TlvType.JOINER_IID:
+            mesh_cop.JoinerIIDFactory(),
+        mesh_cop.TlvType.JOINER_ROUTER_LOCATOR:
+            mesh_cop.JoinerRouterLocatorFactory(),
+        mesh_cop.TlvType.JOINER_ROUTER_KEK:
+            mesh_cop.JoinerRouterKEKFactory(),
+        mesh_cop.TlvType.PROVISIONING_URL:
+            mesh_cop.ProvisioningUrlFactory(),
+        mesh_cop.TlvType.VENDOR_NAME:
+            mesh_cop.VendorNameFactory(),
+        mesh_cop.TlvType.VENDOR_MODEL:
+            mesh_cop.VendorModelFactory(),
+        mesh_cop.TlvType.VENDOR_SW_VERSION:
+            mesh_cop.VendorSWVersionFactory(),
+        mesh_cop.TlvType.VENDOR_DATA:
+            mesh_cop.VendorDataFactory(),
+        mesh_cop.TlvType.VENDOR_STACK_VERSION:
+            mesh_cop.VendorStackVersionFactory(),
+        mesh_cop.TlvType.UDP_ENCAPSULATION:
+            mesh_cop.UdpEncapsulationFactory(),
+        mesh_cop.TlvType.IPV6_ADDRESS:
+            mesh_cop.Ipv6AddressFactory(),
+        mesh_cop.TlvType.PENDING_TIMESTAMP:
+            mesh_cop.PendingTimestampFactory(),
+        mesh_cop.TlvType.DELAY_TIMER:
+            mesh_cop.DelayTimerFactory(),
+        mesh_cop.TlvType.CHANNEL_MASK:
+            mesh_cop.ChannelMaskFactory(),
+        mesh_cop.TlvType.COUNT:
+            mesh_cop.CountFactory(),
+        mesh_cop.TlvType.PERIOD:
+            mesh_cop.PeriodFactory(),
+        mesh_cop.TlvType.SCAN_DURATION:
+            mesh_cop.ScanDurationFactory(),
+        mesh_cop.TlvType.ENERGY_LIST:
+            mesh_cop.EnergyListFactory(),
     }
 
 
 def create_default_mesh_cop_tlvs_factory():
     return SubTlvsFactory(
-        sub_tlvs_factories=create_default_mesh_cop_tlvs_factories()
-    )
+        sub_tlvs_factories=create_default_mesh_cop_tlvs_factories())
 
 
 def create_default_uri_path_based_payload_factories():
@@ -349,7 +435,8 @@ def create_default_uri_path_based_payload_factories():
 def create_default_coap_message_factory():
     return coap.CoapMessageFactory(
         options_factory=coap.CoapOptionsFactory(),
-        uri_path_based_payload_factories=create_default_uri_path_based_payload_factories(),
+        uri_path_based_payload_factories=
+        create_default_uri_path_based_payload_factories(),
         message_id_to_uri_path_binder=coap.CoapMessageIdToUriPathBinder(),
     )
 
@@ -360,8 +447,7 @@ def create_default_ipv6_hop_by_hop_options_factories():
 
 def create_default_ipv6_hop_by_hop_options_factory():
     return ipv6.HopByHopOptionsFactory(
-        options_factories=create_default_ipv6_hop_by_hop_options_factories()
-    )
+        options_factories=create_default_ipv6_hop_by_hop_options_factories())
 
 
 def create_default_based_on_src_dst_ports_udp_payload_factory(master_key):
@@ -375,8 +461,7 @@ def create_default_based_on_src_dst_ports_udp_payload_factory(master_key):
             61631: coap_message_factory,
             1000: dtls_message_factory,
             5684: dtls_message_factory,
-        }
-    )
+        })
 
 
 def create_default_dtls_message_factory():
@@ -385,35 +470,48 @@ def create_default_dtls_message_factory():
 
 def create_default_ipv6_icmp_body_factories():
     return {
-        ipv6.ICMP_DESTINATION_UNREACHABLE: ipv6.ICMPv6DestinationUnreachableFactory(),
-        ipv6.ICMP_ECHO_REQUEST: ipv6.ICMPv6EchoBodyFactory(),
-        ipv6.ICMP_ECHO_RESPONSE: ipv6.ICMPv6EchoBodyFactory(),
-        "default": ipv6.BytesPayloadFactory(),
+        ipv6.ICMP_DESTINATION_UNREACHABLE:
+            ipv6.ICMPv6DestinationUnreachableFactory(),
+        ipv6.ICMP_ECHO_REQUEST:
+            ipv6.ICMPv6EchoBodyFactory(),
+        ipv6.ICMP_ECHO_RESPONSE:
+            ipv6.ICMPv6EchoBodyFactory(),
+        "default":
+            ipv6.BytesPayloadFactory(),
     }
 
 
 def create_default_ipv6_upper_layer_factories(master_key):
     return {
-        ipv6.IPV6_NEXT_HEADER_UDP: ipv6.UDPDatagramFactory(
-            udp_header_factory=ipv6.UDPHeaderFactory(),
-            udp_payload_factory=create_default_based_on_src_dst_ports_udp_payload_factory(
-                master_key
+        ipv6.IPV6_NEXT_HEADER_UDP:
+            ipv6.UDPDatagramFactory(
+                udp_header_factory=ipv6.UDPHeaderFactory(),
+                udp_payload_factory=
+                create_default_based_on_src_dst_ports_udp_payload_factory(
+                    master_key),
             ),
-        ),
-        ipv6.IPV6_NEXT_HEADER_ICMP: ipv6.ICMPv6Factory(
-            body_factories=create_default_ipv6_icmp_body_factories()
-        ),
+        ipv6.IPV6_NEXT_HEADER_ICMP:
+            ipv6.ICMPv6Factory(
+                body_factories=create_default_ipv6_icmp_body_factories()),
     }
 
 
 def create_default_lowpan_extension_headers_factories():
-    return {ipv6.IPV6_NEXT_HEADER_HOP_BY_HOP: lowpan.LowpanHopByHopFactory(
-        hop_by_hop_options_factory=create_default_ipv6_hop_by_hop_options_factory())}
+    return {
+        ipv6.IPV6_NEXT_HEADER_HOP_BY_HOP:
+            lowpan.LowpanHopByHopFactory(
+                hop_by_hop_options_factory=
+                create_default_ipv6_hop_by_hop_options_factory())
+    }
 
 
 def create_default_ipv6_extension_headers_factories():
-    return {ipv6.IPV6_NEXT_HEADER_HOP_BY_HOP: ipv6.HopByHopFactory(
-        hop_by_hop_options_factory=create_default_ipv6_hop_by_hop_options_factory())}
+    return {
+        ipv6.IPV6_NEXT_HEADER_HOP_BY_HOP:
+            ipv6.HopByHopFactory(
+                hop_by_hop_options_factory=
+                create_default_ipv6_hop_by_hop_options_factory())
+    }
 
 
 def create_default_ipv6_packet_factory(master_key):
@@ -426,11 +524,10 @@ def create_default_ipv6_packet_factory(master_key):
 def create_default_lowpan_decompressor(context_manager):
     return lowpan.LowpanDecompressor(
         lowpan_ip_header_factory=lowpan.LowpanIpv6HeaderFactory(
-            context_manager=context_manager
-        ),
+            context_manager=context_manager),
         lowpan_extension_headers_factory=lowpan.LowpanExtensionHeadersFactory(
-            ext_headers_factories=create_default_lowpan_extension_headers_factories()
-        ),
+            ext_headers_factories=
+            create_default_lowpan_extension_headers_factories()),
         lowpan_udp_header_factory=lowpan.LowpanUdpHeaderFactory(),
     )
 
@@ -442,13 +539,13 @@ def create_default_thread_context_manager():
     return context_manager
 
 
-def create_default_lowpan_parser(
-    context_manager, master_key=DEFAULT_MASTER_KEY
-):
+def create_default_lowpan_parser(context_manager,
+                                 master_key=DEFAULT_MASTER_KEY):
     return lowpan.LowpanParser(
         lowpan_mesh_header_factory=lowpan.LowpanMeshHeaderFactory(),
         lowpan_decompressor=create_default_lowpan_decompressor(context_manager),
-        lowpan_fragements_buffers_manager=lowpan.LowpanFragmentsBuffersManager(),
+        lowpan_fragements_buffers_manager=lowpan.LowpanFragmentsBuffersManager(
+        ),
         ipv6_packet_factory=create_default_ipv6_packet_factory(master_key),
     )
 

tests/scripts/thread-cert/debug.py

@@ -27,7 +27,6 @@
 #  POSSIBILITY OF SUCH DAMAGE.
 #
 
-
 from builtins import input
 
 

tests/scripts/thread-cert/dtls.py

@@ -91,9 +91,9 @@ class AlertDescription(IntEnum):
 
 
 class Record(ConvertibleToBytes, BuildableFromBytes):
-    def __init__(
-        self, content_type, version, epoch, sequence_number, length, fragment
-    ):
+
+    def __init__(self, content_type, version, epoch, sequence_number, length,
+                 fragment):
         self.content_type = content_type
         self.version = version
         self.epoch = epoch
@@ -102,14 +102,10 @@ class Record(ConvertibleToBytes, BuildableFromBytes):
         self.fragment = fragment
 
     def to_bytes(self):
-        return (
-            struct.pack(">B", self.content_type)
-            + self.version.to_bytes()
-            + struct.pack(">H", self.epoch)
-            + self.sequence_number.to_bytes(6, byteorder='big')
-            + struct.pack(">H", self.length)
-            + self.fragment
-        )
+        return (struct.pack(">B", self.content_type) + self.version.to_bytes() +
+                struct.pack(">H", self.epoch) +
+                self.sequence_number.to_bytes(6, byteorder='big') +
+                struct.pack(">H", self.length) + self.fragment)
 
     @classmethod
     def from_bytes(cls, data):
@@ -119,16 +115,21 @@ class Record(ConvertibleToBytes, BuildableFromBytes):
         sequence_number = struct.unpack(">Q", b'\x00\x00' + data.read(6))[0]
         length = struct.unpack(">H", data.read(2))[0]
         fragment = bytes(data.read(length))
-        return cls(
-            content_type, version, epoch, sequence_number, length, fragment
-        )
+        return cls(content_type, version, epoch, sequence_number, length,
+                   fragment)
 
     def __repr__(self):
         return "Record(content_type={}, version={}, epoch={}, sequence_number={}, length={})".format(
-            str(self.content_type), self.version, self.epoch, self.sequence_number, self.length, )
+            str(self.content_type),
+            self.version,
+            self.epoch,
+            self.sequence_number,
+            self.length,
+        )
 
 
 class Message(ConvertibleToBytes, BuildableFromBytes):
+
     def __init__(self, content_type):
         self.content_type = content_type
 
@@ -141,6 +142,7 @@ class Message(ConvertibleToBytes, BuildableFromBytes):
 
 
 class HandshakeMessage(Message):
+
     def __init__(
         self,
         handshake_type,
@@ -159,14 +161,12 @@ class HandshakeMessage(Message):
         self.body = body
 
     def to_bytes(self):
-        return (
-            struct.pack(">B", self.handshake_type)
-            + struct.pack(">I", self.length)[1:]
-            + struct.pack(">H", self.message_seq)
-            + struct.pack(">I", self.fragment_offset)[1:]
-            + struct.pack(">I", self.fragment_length)[1:]
-            + self.body.to_bytes()
-        )
+        return (struct.pack(">B", self.handshake_type) +
+                struct.pack(">I", self.length)[1:] +
+                struct.pack(">H", self.message_seq) +
+                struct.pack(">I", self.fragment_offset)[1:] +
+                struct.pack(">I", self.fragment_length)[1:] +
+                self.body.to_bytes())
 
     @classmethod
     def from_bytes(cls, data):
@@ -196,22 +196,19 @@ class HandshakeMessage(Message):
         )
 
     def __repr__(self):
-        return "Handshake(type={}, length={})".format(
-            str(self.handshake_type), self.length
-        )
+        return "Handshake(type={}, length={})".format(str(self.handshake_type),
+                                                      self.length)
 
 
 class ProtocolVersion(ConvertibleToBytes, BuildableFromBytes):
+
     def __init__(self, major, minor):
         self.major = major
         self.minor = minor
 
     def __eq__(self, other):
-        return (
-            isinstance(self, type(other))
-            and self.major == other.major
-            and self.minor == other.minor
-        )
+        return (isinstance(self, type(other)) and self.major == other.major and
+                self.minor == other.minor)
 
     def to_bytes(self):
         return struct.pack(">BB", self.major, self.minor)
@@ -223,8 +220,7 @@ class ProtocolVersion(ConvertibleToBytes, BuildableFromBytes):
 
     def __repr__(self):
         return "ProtocolVersion(major={}, minor={})".format(
-            self.major, self.minor
-        )
+            self.major, self.minor)
 
 
 class Random(ConvertibleToBytes, BuildableFromBytes):
@@ -237,11 +233,9 @@ class Random(ConvertibleToBytes, BuildableFromBytes):
         assert len(self.random_bytes) == Random.random_bytes_length
 
     def __eq__(self, other):
-        return (
-            isinstance(self, type(other))
-            and self.gmt_unix_time == other.gmt_unix_time
-            and self.random_bytes == other.random_bytes
-        )
+        return (isinstance(self, type(other)) and
+                self.gmt_unix_time == other.gmt_unix_time and
+                self.random_bytes == other.random_bytes)
 
     def to_bytes(self):
         return struct.pack(">I", self.gmt_unix_time) + (self.random_bytes)
@@ -254,6 +248,7 @@ class Random(ConvertibleToBytes, BuildableFromBytes):
 
 
 class VariableVector(ConvertibleToBytes):
+
     def __init__(self, subrange, ele_cls, elements):
         self.subrange = subrange
         self.ele_cls = ele_cls
@@ -264,12 +259,10 @@ class VariableVector(ConvertibleToBytes):
         return len(self.elements)
 
     def __eq__(self, other):
-        return (
-            isinstance(self, type(other))
-            and self.subrange == other.subrange
-            and self.ele_cls == other.ele_cls
-            and self.elements == other.elements
-        )
+        return (isinstance(self, type(other)) and
+                self.subrange == other.subrange and
+                self.ele_cls == other.ele_cls and
+                self.elements == other.elements)
 
     def to_bytes(self):
         data = reduce(lambda ele, acc: acc + ele.to_bytes(), self.elements)
@@ -308,6 +301,7 @@ class VariableVector(ConvertibleToBytes):
 
 
 class Opaque(ConvertibleToBytes, BuildableFromBytes):
+
     def __init__(self, byte):
         self.byte = byte
 
@@ -323,6 +317,7 @@ class Opaque(ConvertibleToBytes, BuildableFromBytes):
 
 
 class CipherSuite(ConvertibleToBytes, BuildableFromBytes):
+
     def __init__(self, cipher):
         self.cipher = cipher
 
@@ -361,33 +356,29 @@ class CompressionMethod(ConvertibleToBytes, BuildableFromBytes):
 
 
 class Extension(ConvertibleToBytes, BuildableFromBytes):
+
     def __init__(self, extension_type, extension_data):
         self.extension_type = extension_type
         self.extension_data = extension_data
 
     def __eq__(self, other):
-        return (
-            isinstance(self, type(other))
-            and self.extension_type == other.extension_type
-            and self.extension_data == other.extension_data
-        )
+        return (isinstance(self, type(other)) and
+                self.extension_type == other.extension_type and
+                self.extension_data == other.extension_data)
 
     def to_bytes(self):
-        return (
-            struct.pack(">H", self.extension_type)
-            + self.extension_data.to_bytes()
-        )
+        return (struct.pack(">H", self.extension_type) +
+                self.extension_data.to_bytes())
 
     @classmethod
     def from_bytes(cls, data):
         extension_type = struct.unpack(">H", data.read(2))[0]
-        extension_data = VariableVector.from_bytes(
-            Opaque, (0, 2 ** 16 - 1), data
-        )
+        extension_data = VariableVector.from_bytes(Opaque, (0, 2**16 - 1), data)
         return cls(extension_type, extension_data)
 
 
 class ClientHello(HandshakeMessage):
+
     def __init__(
         self,
         client_version,
@@ -407,33 +398,26 @@ class ClientHello(HandshakeMessage):
         self.extensions = extensions
 
     def to_bytes(self):
-        return (
-            self.client_version.to_bytes()
-            + self.random.to_bytes()
-            + self.session_id.to_bytes()
-            + self.cookie.to_bytes()
-            + self.cipher_suites.to_bytes()
-            + self.compression_methods.to_bytes()
-            + self.extensions.to_bytes()
-        )
+        return (self.client_version.to_bytes() + self.random.to_bytes() +
+                self.session_id.to_bytes() + self.cookie.to_bytes() +
+                self.cipher_suites.to_bytes() +
+                self.compression_methods.to_bytes() +
+                self.extensions.to_bytes())
 
     @classmethod
     def from_bytes(cls, data):
         client_version = ProtocolVersion.from_bytes(data)
         random = Random.from_bytes(data)
         session_id = VariableVector.from_bytes(Opaque, (0, 32), data)
-        cookie = VariableVector.from_bytes(Opaque, (0, 2 ** 8 - 1), data)
-        cipher_suites = VariableVector.from_bytes(
-            CipherSuite, (2, 2 ** 16 - 1), data
-        )
-        compression_methods = VariableVector.from_bytes(
-            CompressionMethod, (1, 2 ** 8 - 1), data
-        )
+        cookie = VariableVector.from_bytes(Opaque, (0, 2**8 - 1), data)
+        cipher_suites = VariableVector.from_bytes(CipherSuite, (2, 2**16 - 1),
+                                                  data)
+        compression_methods = VariableVector.from_bytes(CompressionMethod,
+                                                        (1, 2**8 - 1), data)
         extensions = None
         if data.tell() < len(data.getvalue()):
-            extensions = VariableVector.from_bytes(
-                Extension, (0, 2 ** 16 - 1), data
-            )
+            extensions = VariableVector.from_bytes(Extension, (0, 2**16 - 1),
+                                                   data)
         return cls(
             client_version,
             random,
@@ -446,6 +430,7 @@ class ClientHello(HandshakeMessage):
 
 
 class HelloVerifyRequest(HandshakeMessage):
+
     def __init__(self, server_version, cookie):
         self.server_version = server_version
         self.cookie = cookie
@@ -456,11 +441,12 @@ class HelloVerifyRequest(HandshakeMessage):
     @classmethod
     def from_bytes(cls, data):
         server_version = ProtocolVersion.from_bytes(data)
-        cookie = VariableVector.from_bytes(Opaque, (0, 2 ** 8 - 1), data)
+        cookie = VariableVector.from_bytes(Opaque, (0, 2**8 - 1), data)
         return cls(server_version, cookie)
 
 
 class ServerHello(HandshakeMessage):
+
     def __init__(
         self,
         server_version,
@@ -478,14 +464,9 @@ class ServerHello(HandshakeMessage):
         self.extensions = extensions
 
     def to_bytes(self):
-        return (
-            self.server_version.to_bytes()
-            + self.random.to_bytes()
-            + self.session_id.to_bytes()
-            + self.cipher_suite.to_bytes()
-            + self.compression_method.to_bytes()
-            + self.extensions.to_bytes()
-        )
+        return (self.server_version.to_bytes() + self.random.to_bytes() +
+                self.session_id.to_bytes() + self.cipher_suite.to_bytes() +
+                self.compression_method.to_bytes() + self.extensions.to_bytes())
 
     @classmethod
     def from_bytes(cls, data):
@@ -496,9 +477,8 @@ class ServerHello(HandshakeMessage):
         compression_method = CompressionMethod.from_bytes(data)
         extensions = None
         if data.tell() < len(data.getvalue()):
-            extensions = VariableVector.from_bytes(
-                Extension, (0, 2 ** 16 - 1), data
-            )
+            extensions = VariableVector.from_bytes(Extension, (0, 2**16 - 1),
+                                                   data)
         return cls(
             server_version,
             random,
@@ -510,6 +490,7 @@ class ServerHello(HandshakeMessage):
 
 
 class ServerHelloDone(HandshakeMessage):
+
     def __init__(self):
         pass
 
@@ -522,41 +503,49 @@ class ServerHelloDone(HandshakeMessage):
 
 
 class HelloRequest(HandshakeMessage):
+
     def __init__(self):
         raise NotImplementedError
 
 
 class Certificate(HandshakeMessage):
+
     def __init__(self):
         raise NotImplementedError
 
 
 class ServerKeyExchange(HandshakeMessage):
+
     def __init__(self):
         raise NotImplementedError
 
 
 class CertificateRequest(HandshakeMessage):
+
     def __init__(self):
         raise NotImplementedError
 
 
 class CertificateVerify(HandshakeMessage):
+
     def __init__(self):
         raise NotImplementedError
 
 
 class ClientKeyExchange(HandshakeMessage):
+
     def __init__(self):
         raise NotImplementedError
 
 
 class Finished(HandshakeMessage):
+
     def __init__(self, verify_data):
         raise NotImplementedError
 
 
 class AlertMessage(Message):
+
     def __init__(self, level, description):
         super(AlertMessage, self).__init__(ContentType.ALERT)
         self.level = level
@@ -576,16 +565,15 @@ class AlertMessage(Message):
             return cls(None, None)
 
     def __repr__(self):
-        return "Alert(level={}, description={})".format(
-            str(self.level), str(self.description)
-        )
+        return "Alert(level={}, description={})".format(str(self.level),
+                                                        str(self.description))
 
 
 class ChangeCipherSpecMessage(Message):
+
     def __init__(self):
-        super(ChangeCipherSpecMessage, self).__init__(
-            ContentType.CHANGE_CIPHER_SPEC
-        )
+        super(ChangeCipherSpecMessage,
+              self).__init__(ContentType.CHANGE_CIPHER_SPEC)
 
     def to_bytes(self):
         return struct.pack(">B", 1)
@@ -600,10 +588,10 @@ class ChangeCipherSpecMessage(Message):
 
 
 class ApplicationDataMessage(Message):
+
     def __init__(self, raw):
-        super(ApplicationDataMessage, self).__init__(
-            ContentType.APPLICATION_DATA
-        )
+        super(ApplicationDataMessage,
+              self).__init__(ContentType.APPLICATION_DATA)
         self.raw = raw
         self.body = None
 
@@ -638,7 +626,6 @@ handshake_map = {
     HandshakeType.FINISHED: None,  # Finished
 }
 
-
 content_map = {
     ContentType.CHANGE_CIPHER_SPEC: ChangeCipherSpecMessage,
     ContentType.ALERT: AlertMessage,
@@ -665,11 +652,9 @@ class MessageFactory(object):
                 raise ValueError("DTLS version error, expect DTLSv1.2")
 
             last_msg_is_change_cipher_spec = type(
-                self
-            ).last_msg_is_change_cipher_spec
+                self).last_msg_is_change_cipher_spec
             type(self).last_msg_is_change_cipher_spec = (
-                record.content_type == ContentType.CHANGE_CIPHER_SPEC
-            )
+                record.content_type == ContentType.CHANGE_CIPHER_SPEC)
 
             # FINISHED message immediately follows CHANGE_CIPHER_SPEC message
             # We skip FINISHED message as it is encrypted