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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

*** This bug is a duplicate of bug 1838666 ***
    https://bugs.launchpad.net/bugs/1838666

The actual version of libvirt on the system shouldn't matter, these
tests should not be running against a real libvirt, everything should be
faked out. My guess is the tests are using unordered dicts and that's
why the keys are in a different order, or something with the way the xml
comparison code is asserting the attributes.

** Tags added: libvirt testing

** Also affects: nova/stein
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1841667

Title:
  failing libvirt tests: need ordering

Status in OpenStack Compute (nova):
  New
Status in OpenStack Compute (nova) stein series:
  New

Bug description:
  When rebuilding Nova from Stein in Debian Sid, I get 3 unit test
  errors, probably due to a more recent libvirt (ie: 5.6.0). See for
  example, on this first one:

  <target bus="virtio" dev="vda"/>

  we get bus= and dev= inverted.

  ======================================================================
  FAIL: nova.tests.unit.virt.libvirt.test_driver.LibvirtDriverTestCase.test_get_disk_xml
  nova.tests.unit.virt.libvirt.test_driver.LibvirtDriverTestCase.test_get_disk_xml
  ----------------------------------------------------------------------
  _StringException: pythonlogging:'': {{{2019-08-27 20:26:05,026 WARNING [os_brick.initiator.connectors.remotefs] Connection details not present. RemoteFsClient may not initialize properly.}}}

  Traceback (most recent call last):
    File "/<<PKGBUILDDIR>>/nova/tests/unit/virt/libvirt/test_driver.py", line 20926, in test_get_disk_xml
      self.assertEqual(diska_xml.strip(), actual_diska_xml.strip())
    File "/usr/lib/python3/dist-packages/testtools/testcase.py", line 411, in assertEqual
      self.assertThat(observed, matcher, message)
    File "/usr/lib/python3/dist-packages/testtools/testcase.py", line 498, in assertThat
      raise mismatch_error
  testtools.matchers._impl.MismatchError: !=:
  reference = '''\
  <disk type="file" device="disk">
    <source file="disk1_file"/>
    <target bus="virtio" dev="vda"/>
    <serial>0e38683e-f0af-418f-a3f1-6b67ea0f919d</serial>
  </disk>'''
  actual    = '''\
  <disk type="file" device="disk">
    <source file="disk1_file"/>
    <target dev="vda" bus="virtio"/>
    <serial>0e38683e-f0af-418f-a3f1-6b67ea0f919d</serial>
  </disk>'''

  
  ======================================================================
  FAIL: nova.tests.unit.virt.libvirt.test_driver.LibvirtConnTestCase.test_detach_volume_with_vir_domain_affect_live_flag
  nova.tests.unit.virt.libvirt.test_driver.LibvirtConnTestCase.test_detach_volume_with_vir_domain_affect_live_flag
  ----------------------------------------------------------------------
  _StringException: pythonlogging:'': {{{2019-08-27 20:26:31,189 WARNING [os_brick.initiator.connectors.remotefs] Connection details not present. RemoteFsClient may not initialize properly.}}}

  Traceback (most recent call last):
    File "/usr/lib/python3/dist-packages/mock/mock.py", line 1330, in patched
      return func(*args, **keywargs)
    File "/<<PKGBUILDDIR>>/nova/tests/unit/virt/libvirt/test_driver.py", line 7955, in test_detach_volume_with_vir_domain_affect_live_flag
      """, flags=flags)
    File "/usr/lib/python3/dist-packages/mock/mock.py", line 944, in assert_called_with
      six.raise_from(AssertionError(_error_message(cause)), cause)
    File "<string>", line 3, in raise_from
  AssertionError: expected call not found.
  Expected: detachDeviceFlags('<disk type="file" device="disk">\n  <source file="/path/to/fake-volume"/>\n  <target bus="virtio" dev="vdc"/>\n</disk>\n', flags=3)
  Actual: detachDeviceFlags('<disk type="file" device="disk">\n  <source file="/path/to/fake-volume"/>\n  <target dev="vdc" bus="virtio"/>\n</disk>\n', flags=3)

  
  ======================================================================
  FAIL: nova.tests.unit.virt.libvirt.test_driver.LibvirtConnTestCase.test_update_volume_xml
  nova.tests.unit.virt.libvirt.test_driver.LibvirtConnTestCase.test_update_volume_xml
  ----------------------------------------------------------------------
  _StringException: pythonlogging:'': {{{2019-08-27 20:26:37,451 WARNING [os_brick.initiator.connectors.remotefs] Connection details not present. RemoteFsClient may not initialize properly.}}}

  Traceback (most recent call last):
    File "/<<PKGBUILDDIR>>/nova/tests/unit/virt/libvirt/test_driver.py", line 10157, in test_update_volume_xml
      etree.tostring(config, encoding='unicode'))
    File "/usr/lib/python3/dist-packages/testtools/testcase.py", line 411, in assertEqual
      self.assertThat(observed, matcher, message)
    File "/usr/lib/python3/dist-packages/testtools/testcase.py", line 498, in assertThat
      raise mismatch_error
  testtools.matchers._impl.MismatchError: !=:
  reference = '<domain type="kvm"><devices><disk type="block" device="disk"><driver name="qemu" type="raw" cache="none"/><source dev="/dev/disk/by-path/ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z"/><target bus="virtio" dev="vdb"/><serial>58a84f6d-3f0c-4e19-a0af-eb657b790657</serial><address type="pci" domain="0x0" bus="0x0" slot="0x04" function="0x0"/></disk></devices></domain>'
  actual    = '<domain type="kvm"><devices><disk type="block" device="disk"><driver name="qemu" type="raw" cache="none"/><source dev="/dev/disk/by-path/ip-1.2.3.4:3260-iqn.cde.67890.opst-lun-Z"/><target dev="vdb" bus="virtio"/><serial>58a84f6d-3f0c-4e19-a0af-eb657b790657</serial><address type="pci" domain="0x0" bus="0x0" slot="0x04" function="0x0"/></disk></devices></domain>'

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