Stabilize unshelve notification sample tests
The notification sample test for unshelve waits for the instance to reach ACTIVE state and then asserts if unshelve.end notification is emitted properly. However the instance.vm_state is set to ACTIVE earlier[1] than emitting the unshelve.end notification[2]. This can cause two different test case failure. 1) _test_unshelve_server() fails with no ushelve.end notification received. 2) _test_shelve_and_shelve_offload_server() also has a unshelve action at the end and that test step also only waits for the the ACTIVE state. So the unshelve.end notification from the end of _test_shelve_and_shelve_offload_server() can bleed into the _test_unshelve_server() step causing that it receive one more notifications. So this patch adds an extra self._wait_for_notification('instance.unshelve.end') call to each test step to prevent the instability. [1] https://github.com/openstack/nova/blob/5c6c1f8f/nova/compute/manager.py#L5322-L5326 [2] https://github.com/openstack/nova/blob/5c6c1f8f/nova/compute/manager.py#L5329 [3] https://github.com/openstack/nova/blob/5c6c1f8f/nova/tests/functional/notification_sample_tests/test_instance.py#L836 Closes-Bug: #1835070 Change-Id: Ie217523a8969326b27930d7f74e50e9b352ab7a1
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@ -816,6 +816,7 @@ class TestInstanceNotificationSample(
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self.api.post_server_action(server['id'], {'unshelve': None})
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self._wait_for_state_change(self.api, server, 'ACTIVE')
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self._wait_for_notification('instance.unshelve.end')
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def _test_unshelve_server(self, server):
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# setting the shelved_offload_time to 0 should set the
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@ -833,6 +834,7 @@ class TestInstanceNotificationSample(
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post = {'unshelve': None}
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self.api.post_server_action(server['id'], post)
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self._wait_for_state_change(self.admin_api, server, 'ACTIVE')
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self._wait_for_notification('instance.unshelve.end')
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self.assertEqual(9, len(fake_notifier.VERSIONED_NOTIFICATIONS))
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self._verify_notification(
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'instance-unshelve-start',
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