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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: oslo
       Status: Fix Committed => Fix Released

** Changed in: oslo
    Milestone: None => icehouse-1

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https://bugs.launchpad.net/bugs/1239898

Title:
  test_rescue_preserve_disk_on_failure unittest broken

Status in OpenStack Compute (Nova):
  Fix Released
Status in Oslo - a Library of Common OpenStack Code:
  Fix Released

Bug description:
  One of following commits broke unittests. I am not quite sure how it's
  related, but they are broken ever since these changes were merged.

  https://github.com/openstack/nova/commit/f99641f09965b8f5036a976e9a5f5f28a542d800
  https://github.com/openstack/nova/commit/eaf5636544a9b2ae1e87f74d0cdb989f8a41b008

  running=OS_STDOUT_CAPTURE=${OS_STDOUT_CAPTURE:-1} \
  OS_STDERR_CAPTURE=${OS_STDERR_CAPTURE:-1} \
  OS_TEST_TIMEOUT=${OS_TEST_TIMEOUT:-60} \
  ${PYTHON:-python} -m subunit.run discover -t ./ ./nova/tests  
  ======================================================================
  FAIL: nova.tests.virt.xenapi.test_xenapi.XenAPIVMTestCase.test_instance_snapshot_fails_with_no_primary_vdi
  tags: worker-0
  ----------------------------------------------------------------------
  Empty attachments:
    stderr
    stdout

  pythonlogging:'': {{{
  Loading network driver 'nova.network.linux_net'
  Loading network driver 'nova.network.linux_net'
  Loading network driver 'nova.network.linux_net'
  glance.upload_vhd attempt 1/1
  }}}

  Traceback (most recent call last):
    File "nova/tests/virt/xenapi/test_xenapi.py", line 522, in test_instance_snapshot_fails_with_no_primary_vdi
      lambda *args, **kwargs: None)
    File "/home/jenkins/workspace/csi-nova-upstream/.tox/py26/lib/python2.6/site-packages/testtools/testcase.py", line 394, in assertRaises
      self.assertThat(our_callable, matcher)
    File "/home/jenkins/workspace/csi-nova-upstream/.tox/py26/lib/python2.6/site-packages/testtools/testcase.py", line 417, in assertThat
      raise MismatchError(matchee, matcher, mismatch, verbose)
  MismatchError: <bound method XenAPIDriver.snapshot of <nova.virt.xenapi.driver.XenAPIDriver object at 0x19e61490>> returned None
  ======================================================================
  FAIL: nova.tests.virt.xenapi.test_xenapi.XenAPIVMTestCase.test_rescue_preserve_disk_on_failure
  tags: worker-0
  ----------------------------------------------------------------------
  Empty attachments:
    stderr
    stdout

  pythonlogging:'': {{{
  Loading network driver 'nova.network.linux_net'
  Loading network driver 'nova.network.linux_net'
  Loading network driver 'nova.network.linux_net'
  glance.download_vhd attempt 1/1
  glance.download_vhd attempt 1/1
  Failed to spawn, rolling back
  Traceback (most recent call last):
    File "nova/virt/xenapi/vmops.py", line 498, in _spawn
      boot_instance_step(undo_mgr, vm_ref)
    File "nova/virt/xenapi/vmops.py", line 152, in inner
      rv = f(*args, **kwargs)
    File "nova/virt/xenapi/vmops.py", line 461, in boot_instance_step
      self._start(instance, vm_ref)
    File "nova/tests/virt/xenapi/test_xenapi.py", line 1276, in fake_start
      raise test.TestingException('Start Error')
  TestingException: Start Error
  VM already halted, skipping shutdown...
  ['HANDLE_INVALID', 'VDI', '8c985bc1-998b-4dd2-b797-cbe86bf2abb2']
  Traceback (most recent call last):
    File "nova/virt/xenapi/vm_utils.py", line 439, in destroy_vdi
      session.call_xenapi('VDI.destroy', vdi_ref)
    File "nova/virt/xenapi/driver.py", line 779, in call_xenapi
      return session.xenapi_request(method, args)
    File "nova/virt/xenapi/fake.py", line 756, in xenapi_request
      return meth(*full_params)
    File "nova/virt/xenapi/fake.py", line 801, in <lambda>
      return lambda *params: self._destroy(name, params)
    File "nova/virt/xenapi/fake.py", line 917, in _destroy
      raise Failure(['HANDLE_INVALID', table, ref])
  Failure: ['HANDLE_INVALID', 'VDI', '8c985bc1-998b-4dd2-b797-cbe86bf2abb2']
  Unable to destroy VDI 8c985bc1-998b-4dd2-b797-cbe86bf2abb2
  }}}

  Traceback (most recent call last):
    File "nova/tests/virt/xenapi/test_xenapi.py", line 1285, in test_rescue_preserve_disk_on_failure
      self.assertEqual(vdi_ref, vdi_ref2)
    File "/home/jenkins/workspace/csi-nova-upstream/.tox/py26/lib/python2.6/site-packages/testtools/testcase.py", line 322, in assertEqual
      self.assertThat(observed, matcher, message)
    File "/home/jenkins/workspace/csi-nova-upstream/.tox/py26/lib/python2.6/site-packages/testtools/testcase.py", line 417, in assertThat
      raise MismatchError(matchee, matcher, mismatch, verbose)
  MismatchError: !=:
  reference = '62ba4799-a2bf-4a47-aef6-9341b70a2ad1'
  actual    = '8a4dcae5-7a8f-49db-92af-775f80f935fc'
  ======================================================================
  FAIL: process-returncode
  tags: worker-0
  ----------------------------------------------------------------------
  Binary content:
    traceback (test/plain; charset="utf8")
  Ran 19145 tests in 2223.014s
  FAILED (id=0, failures=3, skips=12)
  error: testr failed (1)
  ERROR: InvocationError: '/home/jenkins/workspace/csi-nova-upstream/.tox/py26/bin/python setup.py test --slowest --testr-args='

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