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[Brian Haley <2100806@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

The cross-neutron-py12 job was intermittently failing in the
requirements repo:

https://review.opendev.org/c/openstack/requirements/+/942959

Below is the failure:

==============================
Failed 1 tests - output below:
==============================

neutron.tests.unit.notifiers.test_batch_notifier.TestBatchNotifier.test_queue_event_multiple_events_notify_method
-----------------------------------------------------------------------------------------------------------------

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):

      File
"/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py",
line 178, in func

    return f(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^

      File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/unit/notifiers/test_batch_notifier.py", line 66, in test_queue_event_multiple_events_notify_method
    self.assertEqual(2, c_mock.call_count)

      File "/home/zuul/src/opendev.org/openstack/neutron/.tox/py312/lib/python3.12/site-packages/testtools/testcase.py", line 419, in assertEqual
    self.assertThat(observed, matcher, message)

      File "/home/zuul/src/opendev.org/openstack/neutron/.tox/py312/lib/python3.12/site-packages/testtools/testcase.py", line 509, in assertThat
    raise mismatch_error

    testtools.matchers._impl.MismatchError: 2 != 3


This test and code was recently updated to remove eventlet, and it was noted that the test is timing-sensitive, so at the CI meeting we agreed to increase the sleep in the test from zero (to just trigger a yield) to either 0.1 or 0.2 to let the consumer execute. This bug is to track that work.

** Affects: neutron
     Importance: Undecided
     Assignee: Brian Haley (brian-haley)
         Status: In Progress


** Tags: unittest

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https://bugs.launchpad.net/bugs/2100806

Title:
  Intermittent test_batch_notifier failure

Status in neutron:
  In Progress

Bug description:
  The cross-neutron-py12 job was intermittently failing in the
  requirements repo:

  https://review.opendev.org/c/openstack/requirements/+/942959

  Below is the failure:

  ==============================
  Failed 1 tests - output below:
  ==============================

  neutron.tests.unit.notifiers.test_batch_notifier.TestBatchNotifier.test_queue_event_multiple_events_notify_method
  -----------------------------------------------------------------------------------------------------------------

  Captured traceback:
  ~~~~~~~~~~~~~~~~~~~
      Traceback (most recent call last):

        File
  "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/base.py",
  line 178, in func

      return f(self, *args, **kwargs)
             ^^^^^^^^^^^^^^^^^^^^^^^^

        File "/home/zuul/src/opendev.org/openstack/neutron/neutron/tests/unit/notifiers/test_batch_notifier.py", line 66, in test_queue_event_multiple_events_notify_method
      self.assertEqual(2, c_mock.call_count)

        File "/home/zuul/src/opendev.org/openstack/neutron/.tox/py312/lib/python3.12/site-packages/testtools/testcase.py", line 419, in assertEqual
      self.assertThat(observed, matcher, message)

        File "/home/zuul/src/opendev.org/openstack/neutron/.tox/py312/lib/python3.12/site-packages/testtools/testcase.py", line 509, in assertThat
      raise mismatch_error

      testtools.matchers._impl.MismatchError: 2 != 3

  
  This test and code was recently updated to remove eventlet, and it was noted that the test is timing-sensitive, so at the CI meeting we agreed to increase the sleep in the test from zero (to just trigger a yield) to either 0.1 or 0.2 to let the consumer execute. This bug is to track that work.

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