test__does_not_generate_host_maps_if_not_on_managed_interface is flaky

[Gavin Panella]

Seen when landing a branch (lp:~allenap/maas/compressed-amp-list--bug-1387515--1.7) into lp:maas/1.7:

FAIL: maasserver.models.tests.test_node.NodeManagerTest_StartNodes.test__does_not_generate_host_maps_if_not_on_managed_interface
----------------------------------------------------------------------
_StringException: Failed expectation: {{{
File "/tmp/tarmac/branch.KAlXz9/src/maasserver/models/tests/test_node.py", line 2439, in test__does_not_generate_host_maps_if_not_on_managed_interface
    Equals([{node1_ip: node1_mac.mac_address}]))
  File "/usr/lib/python2.7/dist-packages/testtools/testcase.py", line 447, in expectThat
    postfix_content="MismatchError: " + str(mismatch_error)
MismatchError: !=:
reference = [{u'96.132.103.67': c4:a8:8b:52:8c:3e}]
actual = [{u'235.155.163.41': c4:a8:8b:52:8c:3e}]
}}}

Traceback (most recent call last):
AssertionError: Forced Test Failure

-------------------- >> begin captured logging << --------------------
twisted: INFO: Factory starting on 57503
twisted: INFO: (TCP Port 57503 Closed)
twisted: INFO: Factory starting on u'/tmp/tmpkd7Y5X/sock'
twisted: INFO: AMPTestProtocol#31 connection established (HOST:UNIXAddress(None) PEER:UNIXAddress(u'/tmp/tmpkd7Y5X/sock'))
twisted: INFO: RegionServer connection established (HOST:UNIXAddress('/tmp/tmpkd7Y5X/sock') PEER:UNIXAddress(None))
twisted: INFO: Cluster '74fc4d4e-603e-11e4-b40f-fa163e462866' authenticated.
maas.node: INFO: hBiKf41u0xJrCWOrWwws allocated to user JdrMLJSnVw
twisted: INFO: AMPTestProtocol#32 connection established (HOST:UNIXAddress(None) PEER:UNIXAddress(u'/tmp/tmpkd7Y5X/sock'))
twisted: INFO: RegionServer connection established (HOST:UNIXAddress('/tmp/tmpkd7Y5X/sock') PEER:UNIXAddress(None))
twisted: INFO: Cluster '74fc4d4e-603e-11e4-b40f-fa163e462866' authenticated.
maas.node: INFO: Nma7ANZXEzOvPUahZvbY allocated to user JdrMLJSnVw
maas.node: INFO: hBiKf41u0xJrCWOrWwws: Starting monitor: {u'deadline': datetime.datetime(2014, 10, 30, 14, 50, 9, 629329, tzinfo=<twisted.protocols.amp._FixedOffsetTZInfo object at 0x2adc47207750>), u'id': u'node-7501f28a-603e-11e4-b40f-fa163e462866', u'context': {u'node_status': 9, u'timeout': 2400.0}}
maas.node: INFO: Nma7ANZXEzOvPUahZvbY: Starting monitor: {u'deadline': datetime.datetime(2014, 10, 30, 14, 50, 9, 641329, tzinfo=<twisted.protocols.amp._FixedOffsetTZInfo object at 0x2adc47207750>), u'id': u'node-75091628-603e-11e4-b40f-fa163e462866', u'context': {u'node_status': 9, u'timeout': 2400.0}}
twisted: INFO: (UNIX Port u'/tmp/tmpkd7Y5X/sock' Closed)
twisted: INFO: RegionServer connection lost (HOST:UNIXAddress('/tmp/tmpkd7Y5X/sock') PEER:UNIXAddress(None))
twisted: INFO: RegionServer connection lost (HOST:UNIXAddress('/tmp/tmpkd7Y5X/sock') PEER:UNIXAddress(None))
twisted: INFO: AMPTestProtocol#32 connection lost (HOST:UNIXAddress(None) PEER:UNIXAddress(u'/tmp/tmpkd7Y5X/sock'))
twisted: INFO: AMPTestProtocol#31 connection lost (HOST:UNIXAddress(None) PEER:UNIXAddress(u'/tmp/tmpkd7Y5X/sock'))
twisted: INFO: Factory starting on 36906
twisted: INFO: (TCP Port 36906 Closed)
--------------------- >> end captured logging << ---------------------

[Julian Edwards (julian-edwards)]

It's worth noting that this test is completely different in trunk.