[test] save packets as pcap file in thread-cert tests (#2965)

tests/scripts/thread-cert/Cert_5_1_01_RouterAttach.py

@@ -62,8 +62,8 @@ class Cert_5_1_01_RouterAttach(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_02_ChildAddressTimeout.py

@@ -78,8 +78,8 @@ class Cert_5_1_02_ChildAddressTimeout(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_03_RouterAddressReallocation.py

@@ -72,8 +72,8 @@ class Cert_5_1_03_RouterAddressReallocation(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_04_RouterAddressReallocation.py

@@ -72,8 +72,8 @@ class Cert_5_1_04_RouterAddressReallocation(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_05_RouterAddressTimeout.py

@@ -65,8 +65,8 @@ class Cert_5_1_05_RouterAddressTimeout(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_06_RemoveRouterId.py

@@ -62,8 +62,8 @@ class Cert_5_1_06_RemoveRouterId(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_07_MaxChildCount.py

@@ -71,8 +71,8 @@ class Cert_5_1_07_MaxChildCount(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_08_RouterAttachConnectivity.py

@@ -89,8 +89,8 @@ class Cert_5_1_08_RouterAttachConnectivity(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_09_REEDAttachConnectivity.py

@@ -89,8 +89,8 @@ class Cert_5_1_09_REEDAttachConnectivity(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_10_RouterAttachLinkQuality.py

@@ -79,8 +79,8 @@ class Cert_5_1_10_RouterAttachLinkQuality(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_11_REEDAttachLinkQuality.py

@@ -79,8 +79,8 @@ class Cert_5_1_11_REEDAttachLinkQuality(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_1_12_NewRouterNeighborSync.py

@@ -69,8 +69,8 @@ class Cert_5_1_12_NewRouterSync(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def verify_step_4(self, router1_messages, router2_messages, req_receiver, accept_receiver):
         if router2_messages.contains_mle_message(mle.CommandType.LINK_REQUEST) and \

tests/scripts/thread-cert/Cert_5_1_13_RouterReset.py

@@ -64,8 +64,8 @@ class Cert_5_1_13_RouterReset(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_2_01_REEDAttach.py

@@ -79,8 +79,8 @@ class Cert_5_2_01_REEDAttach(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_2_03_LeaderReject2Hops.py

@@ -77,8 +77,8 @@ class Cert_5_2_3_LeaderReject2Hops(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1

tests/scripts/thread-cert/Cert_5_2_04_REEDUpgrade.py

@@ -81,8 +81,8 @@ class Cert_5_2_4_REEDUpgrade(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1 Ensure topology is formed correctly without the DUT_REED.

tests/scripts/thread-cert/Cert_5_2_05_AddressQuery.py

@@ -76,8 +76,8 @@ class Cert_5_2_5_AddressQuery(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1. LEADER: DHCPv6 Server for prefix 2001::/64.

tests/scripts/thread-cert/Cert_5_2_06_RouterDowngrade.py

@@ -57,8 +57,8 @@ class Cert_5_2_06_RouterDowngrade(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1 Ensure topology is formed correctly without ROUTER24.

tests/scripts/thread-cert/Cert_5_2_07_REEDSynchronization.py

@@ -54,8 +54,8 @@ class Cert_5_2_7_REEDSynchronization(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1. Ensure topology is formed correctly without DUT_ROUTER1.

tests/scripts/thread-cert/Cert_5_3_01_LinkLocal.py

@@ -55,8 +55,8 @@ class Cert_5_3_1_LinkLocal(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1

tests/scripts/thread-cert/Cert_5_3_02_RealmLocal.py

@@ -75,8 +75,8 @@ class Cert_5_3_2_RealmLocal(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1

tests/scripts/thread-cert/Cert_5_3_03_AddressQuery.py

@@ -86,8 +86,8 @@ class Cert_5_3_3_AddressQuery(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1

tests/scripts/thread-cert/Cert_5_3_04_AddressMapCache.py

@@ -85,8 +85,8 @@ class Cert_5_3_4_AddressMapCache(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1

tests/scripts/thread-cert/Cert_5_3_05_RoutingLinkQuality.py

@@ -77,8 +77,8 @@ class Cert_5_3_5_RoutingLinkQuality(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1

tests/scripts/thread-cert/Cert_5_3_06_RouterIdMask.py

@@ -71,8 +71,8 @@ class Cert_5_3_6_RouterIdMask(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1

tests/scripts/thread-cert/Cert_5_3_06b_RouterIdMask.py

@@ -66,8 +66,8 @@ class Cert_5_3_6_RouterIdMask(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_3_07_DuplicateAddress.py

@@ -91,8 +91,8 @@ class Cert_5_3_7_DuplicateAddress(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1

tests/scripts/thread-cert/Cert_5_3_08_ChildAddressSet.py

@@ -73,8 +73,8 @@ class Cert_5_3_8_ChildAddressSet(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[DUT_LEADER].start()

tests/scripts/thread-cert/Cert_5_3_09_AddressQuery.py

@@ -86,8 +86,8 @@ class Cert_5_3_09_AddressQuery(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1 & 2 ALL: Build and verify the topology

tests/scripts/thread-cert/Cert_5_3_10_AddressQuery.py

@@ -88,8 +88,8 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1 & 2

tests/scripts/thread-cert/Cert_5_3_11_AddressQueryTimeoutIntervals.py

@@ -66,8 +66,8 @@ class Cert_5_3_11_AddressQueryTimeoutIntervals(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1 ALL: Build and verify the topology

tests/scripts/thread-cert/Cert_5_5_01_LeaderReboot.py

@@ -64,8 +64,8 @@ class Cert_5_5_1_LeaderReboot(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         # 1 ALL: Build and verify the topology

tests/scripts/thread-cert/Cert_5_5_02_LeaderReboot.py

@@ -69,8 +69,8 @@ class Cert_5_5_2_LeaderReboot(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_5_03_SplitMergeChildren.py

@@ -93,8 +93,8 @@ class Cert_5_5_3_SplitMergeChildren(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_5_04_SplitMergeRouters.py

@@ -86,8 +86,8 @@ class Cert_5_5_4_SplitMergeRouters(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_5_05_SplitMergeREED.py

@@ -78,8 +78,8 @@ class Cert_5_5_5_SplitMergeREED(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_5_07_SplitMergeThreeWay.py

@@ -78,8 +78,8 @@ class Cert_5_5_7_SplitMergeThreeWay(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER1].start()

tests/scripts/thread-cert/Cert_5_5_08_SplitRoutersLostLeader.py

@@ -87,7 +87,7 @@ class Cert_5_5_8_SplitRoutersLostLeader(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
+            node.destroy()
 
     def test(self):
         self.nodes[LEADER1].start()

tests/scripts/thread-cert/Cert_5_6_01_NetworkDataRegisterBeforeAttachLeader.py

@@ -75,8 +75,8 @@ class Cert_5_6_1_NetworkDataLeaderAsBr(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_6_02_NetworkDataRegisterBeforeAttachRouter.py

@@ -75,8 +75,8 @@ class Cert_5_6_2_NetworkDataRouterAsBr(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_6_03_NetworkDataRegisterAfterAttachLeader.py

@@ -75,8 +75,8 @@ class Cert_5_6_3_NetworkDataRegisterAfterAttachLeader(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_6_04_NetworkDataRegisterAfterAttachRouter.py

@@ -75,8 +75,8 @@ class Cert_5_6_4_NetworkDataRegisterAfterAttachRouter(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_6_05_NetworkDataRegisterAfterAttachRouter.py

@@ -75,8 +75,8 @@ class Cert_5_6_5_NetworkDataRegisterAfterAttachRouter(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_6_06_NetworkDataExpiration.py

@@ -75,8 +75,8 @@ class Cert_5_6_6_NetworkDataExpiration(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_6_07_NetworkDataRequestREED.py

@@ -66,8 +66,8 @@ class Cert_5_6_7_NetworkDataRequestREED(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_6_08_ContextManagement.py

@@ -66,8 +66,8 @@ class Cert_5_6_8_ContextManagement(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_6_09_NetworkDataForwarding.py

@@ -83,8 +83,8 @@ class Cert_5_6_9_NetworkDataForwarding(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_8_01_KeySynchronization.py

@@ -59,8 +59,8 @@ class Cert_5_8_1_KeySynchronization(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_8_02_KeyIncrement.py

@@ -60,8 +60,8 @@ class Cert_5_8_2_KeyIncrement(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_5_8_03_KeyIncrementRollOver.py

@@ -61,8 +61,8 @@ class Cert_5_8_3_KeyIncrementRollOver(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_1_01_RouterAttach.py

@@ -58,8 +58,8 @@ class Cert_6_1_1_RouterAttach(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_1_02_REEDAttach.py

@@ -65,8 +65,8 @@ class Cert_6_1_2_REEDAttach(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_1_03_RouterAttachConnectivity.py

@@ -85,8 +85,8 @@ class Cert_6_1_3_RouterAttachConnectivity(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_1_04_REEDAttachConnectivity.py

@@ -85,8 +85,8 @@ class Cert_6_1_4_REEDAttachConnectivity(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_1_05_RouterAttachLinkQuality.py

@@ -75,8 +75,8 @@ class Cert_6_1_5_RouterAttachLinkQuality(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_1_06_REEDAttachLinkQuality.py

@@ -75,8 +75,8 @@ class Cert_6_1_6_REEDAttachLinkQuality(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_1_07_EDSynchronization.py

@@ -89,8 +89,8 @@ class Cert_6_1_7_EDSynchronization(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_2_01_NewPartition.py

@@ -65,8 +65,8 @@ class Cert_6_2_1_NewPartition(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_2_02_NewPartition.py

@@ -76,8 +76,8 @@ class Cert_6_2_2_NewPartition(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_3_01_OrphanReattach.py

@@ -66,8 +66,8 @@ class Cert_6_3_1_OrphanReattach(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_3_02_NetworkDataUpdate.py

@@ -58,8 +58,8 @@ class Cert_6_3_2_NetworkDataUpdate(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_4_01_LinkLocal.py

@@ -57,8 +57,8 @@ class Cert_6_4_1_LinkLocal(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_4_02_RealmLocal.py

@@ -65,8 +65,8 @@ class Cert_5_3_2_RealmLocal(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_5_01_ChildResetSynchronize.py

@@ -61,8 +61,8 @@ class Cert_6_5_1_ChildResetSynchronize(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_5_02_ChildResetReattach.py

@@ -60,8 +60,8 @@ class Cert_6_5_2_ChildResetReattach(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_6_01_KeyIncrement.py

@@ -59,8 +59,8 @@ class Cert_6_6_1_KeyIncrement(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_6_6_02_KeyIncrementRollOver.py

@@ -60,8 +60,8 @@ class Cert_6_6_2_KeyIncrement1(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_7_1_01_BorderRouterAsLeader.py

@@ -75,8 +75,8 @@ class Cert_7_1_1_BorderRouterAsLeader(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_7_1_02_BorderRouterAsRouter.py

@@ -75,8 +75,8 @@ class Cert_7_1_2_BorderRouterAsRouter(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_7_1_03_BorderRouterAsLeader.py

@@ -75,8 +75,8 @@ class Cert_7_1_3_BorderRouterAsLeader(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_7_1_04_BorderRouterAsRouter.py

@@ -75,8 +75,8 @@ class Cert_7_1_4_BorderRouterAsRouter(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_7_1_05_BorderRouterAsRouter.py

@@ -75,8 +75,8 @@ class Cert_7_1_5_BorderRouterAsRouter(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_8_1_01_Commissioning.py

@@ -55,8 +55,8 @@ class Cert_8_1_01_Commissioning(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[COMMISSIONER].interface_up()

tests/scripts/thread-cert/Cert_8_1_02_Commissioning.py

@@ -55,8 +55,8 @@ class Cert_8_1_02_Commissioning(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[COMMISSIONER].interface_up()

tests/scripts/thread-cert/Cert_8_2_01_JoinerRouter.py

@@ -64,8 +64,8 @@ class Cert_8_2_01_JoinerRouter(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[COMMISSIONER].interface_up()

tests/scripts/thread-cert/Cert_8_2_02_JoinerRouter.py

@@ -64,8 +64,8 @@ class Cert_8_2_02_JoinerRouter(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[COMMISSIONER].interface_up()

tests/scripts/thread-cert/Cert_9_2_04_ActiveDataset.py

@@ -55,8 +55,8 @@ class Cert_9_2_15_PendingPartition(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_9_2_07_DelayTimer.py

@@ -80,8 +80,8 @@ class Cert_9_2_7_DelayTimer(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_9_2_08_PersistentDatasets.py

@@ -102,7 +102,7 @@ class Cert_9_2_8_PersistentDatasets(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
+            node.destroy()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_9_2_09_PendingPartition.py

@@ -83,8 +83,8 @@ class Cert_9_2_09_PendingPartition(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_9_2_10_PendingPartition.py

@@ -93,8 +93,8 @@ class Cert_9_2_10_PendingPartition(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_9_2_11_MasterKey.py

@@ -94,8 +94,8 @@ class Cert_9_2_11_MasterKey(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_9_2_12_Announce.py

@@ -90,8 +90,8 @@ class Cert_9_2_12_Announce(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER1].start()

tests/scripts/thread-cert/Cert_9_2_13_EnergyScan.py

@@ -73,8 +73,8 @@ class Cert_9_2_13_EnergyScan(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_9_2_14_PanIdQuery.py

@@ -73,8 +73,8 @@ class Cert_9_2_14_PanIdQuery(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER1].start()

tests/scripts/thread-cert/Cert_9_2_15_PendingPartition.py

@@ -84,8 +84,8 @@ class Cert_9_2_15_PendingPartition(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_9_2_16_ActivePendingPartition.py

@@ -85,8 +85,8 @@ class Cert_9_2_16_ActivePendingPartition(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Cert_9_2_17_Orphan.py

@@ -71,8 +71,8 @@ class Cert_9_2_17_Orphan(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def test(self):
         self.nodes[LEADER1].start()

tests/scripts/thread-cert/Cert_9_2_18_RollBackActiveTimestamp.py

@@ -103,7 +103,7 @@ class Cert_9_2_18_RollBackActiveTimestamp(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
+            node.destroy()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/Makefile.am

@@ -134,6 +134,7 @@ EXTRA_DIST                                                         = \
     network_layer.py                                                 \
     node.py                                                          \
     node_cli.py                                                      \
+    pcap.py                                                          \
     simulator.py                                                     \
     sniffer.py                                                       \
     sniffer_transport.py                                             \

tests/scripts/thread-cert/Test_Cli.py

@@ -42,7 +42,7 @@ class Cert_Cli(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
+            node.destroy()
 
     def test(self):
         commands = self.nodes[LEADER].get_commands()

tests/scripts/thread-cert/Test_MacScan.py

@@ -58,7 +58,7 @@ class Test_MacScan(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
+            node.destroy()
 
     def test(self):
         self.nodes[LEADER].start()

tests/scripts/thread-cert/node.py

@@ -51,7 +51,12 @@ class Node:
         self.interface.set_timeout(100)
 
     def __del__(self):
-        del self.interface
+        self.destroy()
+
+    def destroy(self):
+        if self.interface:
+            self.interface.destroy()
+            self.interface = None
 
     def set_mode(self, mode):
         self.interface.set_mode(mode)

tests/scripts/thread-cert/node_cli.py

@@ -108,11 +108,15 @@ class otCli:
         self.pexpect = fdpexpect.fdspawn(os.open(serialPort, os.O_RDWR|os.O_NONBLOCK|os.O_NOCTTY))
 
     def __del__(self):
-        if self.pexpect.isalive():
+        self.destroy()
+
+    def destroy(self):
+        if self.pexpect and self.pexpect.isalive():
             self.send_command('exit')
             self.pexpect.expect(pexpect.EOF)
             self.pexpect.terminate()
             self.pexpect.close(force=True)
+            self.pexpect = None
 
     def send_command(self, cmd):
         print("%d: %s" % (self.nodeid, cmd))

tests/scripts/thread-cert/pcap.py

@@ -0,0 +1,69 @@
+#
+#  Copyright (c) 2018, The OpenThread Authors.
+#  All rights reserved.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#  http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+""" Module to provide codec utilities for .pcap formatters. """
+
+import struct
+import time
+
+DLT_IEEE802_15_4 = 195
+PCAP_MAGIC_NUMBER = 0xa1b2c3d4
+PCAP_VERSION_MAJOR = 2
+PCAP_VERSION_MINOR = 4
+
+
+class PcapCodec(object):
+    """ Utility class for .pcap formatters. """
+
+    def __init__(self, filename):
+        self._pcap_file = open('%s.pcap' % filename, 'wb')
+        self._pcap_file.write(self.encode_header())
+        self._epoch = time.time()
+
+    def encode_header(self):
+        """ Returns a pcap file header. """
+        return struct.pack("<LHHLLLL",
+                           PCAP_MAGIC_NUMBER,
+                           PCAP_VERSION_MAJOR,
+                           PCAP_VERSION_MINOR,
+                           0, 0, 256,
+                           DLT_IEEE802_15_4)
+
+    def encode_frame(self, frame, sec, usec):
+        """ Returns a pcap encapsulation of the given frame. """
+        frame = frame[1:]
+        length = len(frame)
+        pcap_frame = struct.pack("<LLLL", sec, usec, length, length)
+        pcap_frame += frame
+        return pcap_frame
+
+    def _get_timestamp(self):
+        """ Returns the internal timestamp. """
+        timestamp = time.time() - self._epoch
+        timestamp_sec = int(timestamp)
+        timestamp_usec = int((timestamp - timestamp_sec) * 1000000)
+        return timestamp_sec, timestamp_usec
+
+    def append(self, frame, timestamp=None):
+        """ Appends a frame. """
+        if timestamp is None:
+            timestamp = self._get_timestamp()
+        pkt = self.encode_frame(frame, *timestamp)
+        self._pcap_file.write(pkt)
+
+    def __del__(self):
+        self._pcap_file.close()

tests/scripts/thread-cert/simulator.py

@@ -38,6 +38,7 @@ import sys
 import io
 import config
 import message
+import pcap
 
 class RealTime:
 
@@ -54,6 +55,9 @@ class RealTime:
     def go(self, duration):
         time.sleep(duration)
 
+    def stop(self):
+        pass
+
 class VirtualTime:
 
     BASE_PORT = 9000
@@ -73,10 +77,17 @@ class VirtualTime:
         self.current_time = 0
         self.current_event = None;
 
+        self._pcap = pcap.PcapCodec(os.getenv('TEST_NAME', 'current'))
+
         self._message_factory = config.create_default_thread_message_factory()
 
     def __del__(self):
+        if self.sock:
+            self.stop()
+
+    def stop(self):
         self.sock.close()
+        self.sock = None
 
     def _add_message(self, nodeid, message):
         addr = ('127.0.0.1', self.port + nodeid)
@@ -167,6 +178,7 @@ class VirtualTime:
                         #print "-- Enqueue\t", event
                         bisect.insort(self.event_queue, event)
 
+                self._pcap.append(data, (event_time // 1000000, event_time % 1000000))
                 self._add_message(addr[1] - self.port, data)
 
                 # add radio transmit done events to event queue

tests/scripts/thread-cert/sniffer.py

@@ -30,6 +30,8 @@
 import collections
 import io
 import logging
+import os
+import pcap
 import threading
 
 try:
@@ -59,6 +61,8 @@ class Sniffer:
         self.nodeid = nodeid
         self._message_factory = message_factory
 
+        self._pcap = pcap.PcapCodec(os.getenv('TEST_NAME', 'current'))
+
         # Create transport
         transport_factory = sniffer_transport.SnifferTransportFactory()
         self._transport = transport_factory.create_transport(nodeid)
@@ -69,9 +73,6 @@ class Sniffer:
 
         self._buckets = collections.defaultdict(Queue.Queue)
 
-    def __del__(self):
-        del self._transport
-
     def _sniffer_main_loop(self):
         """ Sniffer main loop. """
 
@@ -80,6 +81,8 @@ class Sniffer:
         while self._thread_alive.is_set():
             data, nodeid = self._transport.recv(self.RECV_BUFFER_SIZE)
 
+            self._pcap.append(data)
+
             # Ignore any exceptions
             try:
                 msg = self._message_factory.create(io.BytesIO(data))
@@ -112,7 +115,7 @@ class Sniffer:
         self._thread_alive.clear()
 
         self._transport.close()
-        
+
         self._thread.join()
         self._thread = None
 

tests/scripts/thread-cert/test_service.py

@@ -85,8 +85,8 @@ class Test_Service(unittest.TestCase):
     def tearDown(self):
         for node in list(self.nodes.values()):
             node.stop()
-        del self.nodes
-        del self.simulator
+            node.destroy()
+        self.simulator.stop()
 
     def hasAloc(self, node_id, service_id):
         for addr in self.nodes[node_id].get_ip6_address(config.ADDRESS_TYPE.ALOC):

third_party/openthread-test-driver/test-driver

@@ -116,7 +116,7 @@ while true; do
 done
 
 # Run a test
-PORT_OFFSET=$OFFSET "$@" >$log_file 2>&1
+TEST_NAME="${test_name}" PORT_OFFSET=$OFFSET "$@" >$log_file 2>&1
 estatus=$?
 
 # Return the offset