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[posix] implement virtual time and update tests to utilize virtual time (#2508)

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This commit adds the following features:

- Example posix drivers to support virtual time simulation, allowing tests
  to run faster than real time.

- A python-based simulation driver that coordinates the virtual time
  simulations.  Each alarm event and message transmission across all nodes
  are scheduled in a single discrete time event queue.  As a result, only
  a single node is making forward progress at a time.

- Updated tests to utilize new virtual-time simulator, allowing them to run
  faster than real time.

- To enable virtual time feature, define VIRTUAL_TIME=1 env var and set
  CPPFLAGS=-DOPENTHREAD_POSIX_VIRTUAL_TIME=1.
This commit is contained in:
Jonathan Hui
2018-01-29 19:30:46 +00:00
committed by GitHub
parent 0403a1baf5
commit d426d7cfbd
107 changed files with 2600 additions and 882 deletions
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tests/scripts/thread-cert/Cert_5_3_10_AddressQuery.py
+21 -24
View File
@@ -46,9 +46,11 @@ MED1 = 5
class Cert_5_3_10_AddressQuery(unittest.TestCase):
def setUp(self):
self.simulator = config.create_default_simulator()
self.nodes = {}
for i in range(1, 6):
self.nodes[i] = node.Node(i, (i == MED1))
self.nodes[i] = node.Node(i, (i == MED1), simulator=self.simulator)
self.nodes[LEADER].set_panid(0xface)
self.nodes[LEADER].set_mode('rsdn')
@@ -83,26 +85,21 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
self.nodes[MED1].add_whitelist(self.nodes[DUT_ROUTER2].get_addr64())
self.nodes[MED1].enable_whitelist()
self.sniffer = config.create_default_thread_sniffer()
self.sniffer.start()
def tearDown(self):
self.sniffer.stop()
del self.sniffer
for node in list(self.nodes.values()):
node.stop()
del self.nodes
del self.simulator
def test(self):
# 1 & 2
# Build and verify the topology
self.nodes[LEADER].start()
self.nodes[LEADER].set_state('leader')
self.simulator.go(5)
self.assertEqual(self.nodes[LEADER].get_state(), 'leader')
self.nodes[BR].start()
time.sleep(5)
self.simulator.go(5)
self.assertEqual(self.nodes[BR].get_state(), 'router')
# Configure two On-Mesh Prefixes on the BR
@@ -111,19 +108,19 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
self.nodes[BR].register_netdata()
# Set lowpan context of sniffer
self.sniffer.set_lowpan_context(1, '2003::/64')
self.sniffer.set_lowpan_context(2, '2004::/64')
self.simulator.set_lowpan_context(1, '2003::/64')
self.simulator.set_lowpan_context(2, '2004::/64')
self.nodes[DUT_ROUTER2].start()
time.sleep(5)
self.simulator.go(5)
self.assertEqual(self.nodes[DUT_ROUTER2].get_state(), 'router')
self.nodes[ROUTER1].start()
time.sleep(5)
self.simulator.go(5)
self.assertEqual(self.nodes[ROUTER1].get_state(), 'router')
self.nodes[MED1].start()
time.sleep(5)
self.simulator.go(5)
self.assertEqual(self.nodes[MED1].get_state(), 'child')
# 3 MED1: MED1 sends an ICMPv6 Echo Request to Router1 using GUA 2003:: address
@@ -132,10 +129,10 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
self.assertTrue(self.nodes[MED1].ping(router1_addr))
# Wait for sniffer got Address Notification messages
time.sleep(1)
self.simulator.go(1)
# Verify DUT_ROUTER2 sent an Address Query Request
dut_router2_messages = self.sniffer.get_messages_sent_by(DUT_ROUTER2)
dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
msg = dut_router2_messages.next_coap_message('0.02', '/a/aq')
command.check_address_query(msg, self.nodes[DUT_ROUTER2], config.REALM_LOCAL_ALL_ROUTERS_ADDRESS)
@@ -150,10 +147,10 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
self.assertTrue(self.nodes[BR].ping(med1_addr))
# Wait for sniffer got Address Notification messages
time.sleep(1)
self.simulator.go(1)
# Verify DUT_ROUTER2 sent an Address Notification message
dut_router2_messages = self.sniffer.get_messages_sent_by(DUT_ROUTER2)
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])
@@ -163,10 +160,10 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
self.assertTrue(self.nodes[MED1].ping(addr))
# Wait for sniffer got ICMPv6 Echo Reply
time.sleep(1)
self.simulator.go(1)
# Verify DUT_ROUTER2 didn't generate an Address Query Request
dut_router2_messages = self.sniffer.get_messages_sent_by(DUT_ROUTER2)
dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
dut_router2_messages_temp = copy.deepcopy(dut_router2_messages)
msg = dut_router2_messages.next_coap_message('0.02', '/a/aq', False)
assert msg is None, "Error: The DUT_ROUTER2 sent an unexpected Address Query Request"
@@ -179,7 +176,7 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
# 6 DUT_ROUTER2: Power off ROUTER1 and wait 580 seconds to allow the LEADER to expire its Router ID
router1_id = self.nodes[ROUTER1].get_router_id()
self.nodes[ROUTER1].stop()
time.sleep(580)
self.simulator.go(580)
# Send an ICMPv6 Echo Request from MED1 to ROUTER1 GUA 2003:: address
self.assertFalse(self.nodes[MED1].ping(router1_addr))
@@ -188,20 +185,20 @@ class Cert_5_3_10_AddressQuery(unittest.TestCase):
command.check_router_id_cached(self.nodes[DUT_ROUTER2], router1_id, False)
# Verify DUT_ROUTER2 sent an Address Query Request
dut_router2_messages = self.sniffer.get_messages_sent_by(DUT_ROUTER2)
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)
# 7 MED1: Power off MED1 and wait to allow DUT_ROUTER2 to timeout the child
self.nodes[MED1].stop()
time.sleep(config.MLE_END_DEVICE_TIMEOUT)
self.simulator.go(config.MLE_END_DEVICE_TIMEOUT)
# BR sends two ICMPv6 Echo Requests to MED1 GUA 2003:: address
self.assertFalse(self.nodes[BR].ping(med1_addr))
self.assertFalse(self.nodes[BR].ping(med1_addr))
# Verify DUT_ROUTER2 didn't generate an Address Notification message
dut_router2_messages = self.sniffer.get_messages_sent_by(DUT_ROUTER2)
dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2)
msg = dut_router2_messages.next_coap_message('0.02', '/a/an/', False)
assert msg is None, "Error: The DUT_ROUTER2 sent an unexpected Address Notification message"