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[Bug 1342498] [NEW] test_live_migration_* tests fail with fakelibvirt

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Corey Wright <corey.wright@xxxxxxxxxxxxx>
Date: Wed, 16 Jul 2014 03:10:02 -0000
Reply-to: Bug 1342498 <1342498@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

With the recent merging of https://review.openstack.org/73428,
test_live_migration_(changes_listen_addresses|raises_exception) requires
fakelibvirt to have the migrateToURI2() method (if libvirt, at least
v0.9.2, is not installed) so that it can be mocked out by those tests,
otherwise the following mox errors occur during unit testing.

UnknownMethodCallError: Method called is not a member of the object:
migrateToURI2

patch attached (which i may submit properly in the next 24 hours if
someone doesn't beat me to it),  with signature taken from upstream
libvirt and mocking stolen from fakelibvirt's migrateToURI().

full error log:

$ ./run_tests.sh nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase.test_live_migration_*
Running `tools/with_venv.sh python -m nova.openstack.common.lockutils python setup.py testr --testr-args='--subunit --concurrency 0  nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase.test_live_migration_*'`
nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase
    test_live_migration_changes_listen_addresses                      FAIL
    test_live_migration_uses_migrateToURI_without_dest_listen_addrs   OK  0.27
    test_live_migration_raises_exception                              FAIL
    test_live_migration_fails_without_migratable_flag_or_0_addr       OK  3.32
    test_live_migration_uses_migrateToURI_without_migratable_flag     OK  0.43

Slowest 5 tests took 8.80 secs:
nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase
    test_live_migration_changes_listen_addresses                          2.10
    test_live_migration_fails_without_migratable_flag_or_0_addr           3.32
    test_live_migration_raises_exception                                  2.68
    test_live_migration_uses_migrateToURI_without_dest_listen_addrs       0.27
    test_live_migration_uses_migrateToURI_without_migratable_flag         0.43

======================================================================
FAIL: nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase.test_live_migration_changes_listen_addresses
----------------------------------------------------------------------
Traceback (most recent call last):
_StringException: Empty attachments:
  stderr
  stdout

pythonlogging:'': {{{
INFO [migrate.versioning.api] 215 -> 216... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 216 -> 217... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 217 -> 218... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 218 -> 219... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 219 -> 220... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 220 -> 221... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 221 -> 222... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 222 -> 223... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 223 -> 224... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 224 -> 225... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 225 -> 226... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 226 -> 227... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 227 -> 228... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 228 -> 229... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 229 -> 230... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 230 -> 231... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 231 -> 232... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 232 -> 233... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 233 -> 234... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 234 -> 235... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 235 -> 236... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 236 -> 237... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 237 -> 238... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 238 -> 239... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 239 -> 240... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 240 -> 241... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 241 -> 242... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 242 -> 243... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 243 -> 244... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 244 -> 245... 
INFO [migrate.versioning.api] done
INFO [nova.network.driver] Loading network driver 'nova.network.linux_net'
INFO [nova.virt.driver] Loading compute driver 'nova.virt.fake.FakeDriver'
}}}

Traceback (most recent call last):
  File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mock.py", line 1201, in patched
    return func(*args, **keywargs)
  File "/home/dev/Desktop/nova/nova/tests/virt/libvirt/test_driver.py", line 4418, in test_live_migration_changes_listen_addresses
    self.mox.StubOutWithMock(vdmock, "migrateToURI2")
  File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mox.py", line 308, in StubOutWithMock
    attr_to_replace = getattr(obj, attr_name)
  File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mox.py", line 608, in __getattr__
    raise UnknownMethodCallError(name)
UnknownMethodCallError: Method called is not a member of the object: migrateToURI2


======================================================================
FAIL: nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase.test_live_migration_raises_exception
----------------------------------------------------------------------
Traceback (most recent call last):
_StringException: Empty attachments:
  stderr
  stdout

pythonlogging:'': {{{
INFO [migrate.versioning.api] 215 -> 216... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 216 -> 217... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 217 -> 218... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 218 -> 219... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 219 -> 220... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 220 -> 221... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 221 -> 222... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 222 -> 223... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 223 -> 224... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 224 -> 225... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 225 -> 226... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 226 -> 227... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 227 -> 228... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 228 -> 229... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 229 -> 230... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 230 -> 231... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 231 -> 232... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 232 -> 233... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 233 -> 234... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 234 -> 235... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 235 -> 236... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 236 -> 237... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 237 -> 238... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 238 -> 239... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 239 -> 240... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 240 -> 241... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 241 -> 242... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 242 -> 243... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 243 -> 244... 
INFO [migrate.versioning.api] done
INFO [migrate.versioning.api] 244 -> 245... 
INFO [migrate.versioning.api] done
INFO [nova.network.driver] Loading network driver 'nova.network.linux_net'
INFO [nova.virt.driver] Loading compute driver 'nova.virt.fake.FakeDriver'
}}}

Traceback (most recent call last):
  File "/home/dev/Desktop/nova/nova/tests/virt/libvirt/test_driver.py", line 4584, in test_live_migration_raises_exception
    self.mox.StubOutWithMock(vdmock, "migrateToURI2")
  File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mox.py", line 308, in StubOutWithMock
    attr_to_replace = getattr(obj, attr_name)
  File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mox.py", line 608, in __getattr__
    raise UnknownMethodCallError(name)
UnknownMethodCallError: Method called is not a member of the object: migrateToURI2


Ran 7 tests in 18.406s

FAILED (failures=2)

** Affects: nova
     Importance: Undecided
         Status: New

** Patch added: "add migrateToURL2 method to fakelibvirt"
   https://bugs.launchpad.net/bugs/1342498/+attachment/4153596/+files/fakelibvirt_add_migrateToURL2.patch

-- 
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https://bugs.launchpad.net/bugs/1342498

Title:
  test_live_migration_* tests fail with fakelibvirt

Status in OpenStack Compute (Nova):
  New

Bug description:
  With the recent merging of https://review.openstack.org/73428,
  test_live_migration_(changes_listen_addresses|raises_exception)
  requires fakelibvirt to have the migrateToURI2() method (if libvirt,
  at least v0.9.2, is not installed) so that it can be mocked out by
  those tests, otherwise the following mox errors occur during unit
  testing.

  UnknownMethodCallError: Method called is not a member of the object:
  migrateToURI2

  patch attached (which i may submit properly in the next 24 hours if
  someone doesn't beat me to it),  with signature taken from upstream
  libvirt and mocking stolen from fakelibvirt's migrateToURI().

  full error log:

  $ ./run_tests.sh nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase.test_live_migration_*
  Running `tools/with_venv.sh python -m nova.openstack.common.lockutils python setup.py testr --testr-args='--subunit --concurrency 0  nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase.test_live_migration_*'`
  nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase
      test_live_migration_changes_listen_addresses                      FAIL
      test_live_migration_uses_migrateToURI_without_dest_listen_addrs   OK  0.27
      test_live_migration_raises_exception                              FAIL
      test_live_migration_fails_without_migratable_flag_or_0_addr       OK  3.32
      test_live_migration_uses_migrateToURI_without_migratable_flag     OK  0.43

  Slowest 5 tests took 8.80 secs:
  nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase
      test_live_migration_changes_listen_addresses                          2.10
      test_live_migration_fails_without_migratable_flag_or_0_addr           3.32
      test_live_migration_raises_exception                                  2.68
      test_live_migration_uses_migrateToURI_without_dest_listen_addrs       0.27
      test_live_migration_uses_migrateToURI_without_migratable_flag         0.43

  ======================================================================
  FAIL: nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase.test_live_migration_changes_listen_addresses
  ----------------------------------------------------------------------
  Traceback (most recent call last):
  _StringException: Empty attachments:
    stderr
    stdout

  pythonlogging:'': {{{
  INFO [migrate.versioning.api] 215 -> 216... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 216 -> 217... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 217 -> 218... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 218 -> 219... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 219 -> 220... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 220 -> 221... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 221 -> 222... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 222 -> 223... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 223 -> 224... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 224 -> 225... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 225 -> 226... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 226 -> 227... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 227 -> 228... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 228 -> 229... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 229 -> 230... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 230 -> 231... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 231 -> 232... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 232 -> 233... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 233 -> 234... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 234 -> 235... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 235 -> 236... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 236 -> 237... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 237 -> 238... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 238 -> 239... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 239 -> 240... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 240 -> 241... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 241 -> 242... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 242 -> 243... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 243 -> 244... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 244 -> 245... 
  INFO [migrate.versioning.api] done
  INFO [nova.network.driver] Loading network driver 'nova.network.linux_net'
  INFO [nova.virt.driver] Loading compute driver 'nova.virt.fake.FakeDriver'
  }}}

  Traceback (most recent call last):
    File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mock.py", line 1201, in patched
      return func(*args, **keywargs)
    File "/home/dev/Desktop/nova/nova/tests/virt/libvirt/test_driver.py", line 4418, in test_live_migration_changes_listen_addresses
      self.mox.StubOutWithMock(vdmock, "migrateToURI2")
    File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mox.py", line 308, in StubOutWithMock
      attr_to_replace = getattr(obj, attr_name)
    File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mox.py", line 608, in __getattr__
      raise UnknownMethodCallError(name)
  UnknownMethodCallError: Method called is not a member of the object: migrateToURI2

  
  ======================================================================
  FAIL: nova.tests.virt.libvirt.test_driver.LibvirtConnTestCase.test_live_migration_raises_exception
  ----------------------------------------------------------------------
  Traceback (most recent call last):
  _StringException: Empty attachments:
    stderr
    stdout

  pythonlogging:'': {{{
  INFO [migrate.versioning.api] 215 -> 216... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 216 -> 217... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 217 -> 218... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 218 -> 219... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 219 -> 220... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 220 -> 221... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 221 -> 222... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 222 -> 223... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 223 -> 224... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 224 -> 225... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 225 -> 226... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 226 -> 227... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 227 -> 228... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 228 -> 229... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 229 -> 230... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 230 -> 231... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 231 -> 232... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 232 -> 233... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 233 -> 234... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 234 -> 235... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 235 -> 236... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 236 -> 237... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 237 -> 238... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 238 -> 239... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 239 -> 240... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 240 -> 241... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 241 -> 242... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 242 -> 243... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 243 -> 244... 
  INFO [migrate.versioning.api] done
  INFO [migrate.versioning.api] 244 -> 245... 
  INFO [migrate.versioning.api] done
  INFO [nova.network.driver] Loading network driver 'nova.network.linux_net'
  INFO [nova.virt.driver] Loading compute driver 'nova.virt.fake.FakeDriver'
  }}}

  Traceback (most recent call last):
    File "/home/dev/Desktop/nova/nova/tests/virt/libvirt/test_driver.py", line 4584, in test_live_migration_raises_exception
      self.mox.StubOutWithMock(vdmock, "migrateToURI2")
    File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mox.py", line 308, in StubOutWithMock
      attr_to_replace = getattr(obj, attr_name)
    File "/home/dev/Desktop/nova/.venv/local/lib/python2.7/site-packages/mox.py", line 608, in __getattr__
      raise UnknownMethodCallError(name)
  UnknownMethodCallError: Method called is not a member of the object: migrateToURI2

  
  Ran 7 tests in 18.406s

  FAILED (failures=2)

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Follow ups

[Bug 1342498] Re: test_live_migration_* tests fail with fakelibvirt
From: Russell Bryant, 2014-07-23
[Bug 1342498] [NEW] test_live_migration_* tests fail with fakelibvirt
From: Corey Wright, 2014-07-16
References

[Bug 1342498] [NEW] test_live_migration_* tests fail with fakelibvirt
From: Corey Wright, 2014-07-16