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nova/nova/tests/functional/regressions
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Matt Riedemann d252f81573 Add functional regression test for bug 1794996 
The _destroy_evacuated_instances method on compute
startup tries to cleanup guests from the hypervisor
and allocations held against that compute node resource
provider by evacuated instances, but doesn't take into
account that those evacuated instances could have been
deleted in the meantime which leads to a lazy-load
InstanceNotFound error that kills the startup of the
compute service.

This change adds a functional regression test to recreate
the bug. A subsequent change with the fix will update
the test to show the bug is fixed.

Note that assertFlavorMatchesAllocation and
_boot_and_check_allocations are redefined in the test
class because If6aa37d9b6b48791e070799ab026c816fda4441c
refactored those methods which will cause problems with
backports of this test. The redefined methods will be
removed in a follow up cleanup patch.

Change-Id: I19b0d8baea5440f5d5bc49a6956d9a97bf031a05
Related-Bug: #1794996
 		2018-10-25 16:15:56 -04:00
..
README.rst add a place for functional test to block specific regressions 2016-02-24 18:14:27 +00:00
__init__.py add a place for functional test to block specific regressions 2016-02-24 18:14:27 +00:00
test_bug_1404867.py fixtures: Track volume attachments within CinderFixtureNewAttachFlow 2018-10-22 17:19:31 +01:00
test_bug_1522536.py replace chance with filter scheduler in func tests 2017-08-16 14:42:51 +00:00
test_bug_1541691.py Remove unused conf 2016-09-02 09:02:23 +08:00
test_bug_1548980.py replace chance with filter scheduler in func tests 2017-08-16 14:42:51 +00:00
test_bug_1552888.py Trivial-Fix: Fix typos 2016-06-13 06:41:08 +00:00
test_bug_1554631.py Catching OverQuota Exception 2017-05-03 19:00:34 +00:00
test_bug_1558866.py remove unnecessary conf imports 2018-03-09 14:30:10 -05:00
test_bug_1568208.py Fix generation of Guru Meditation Report 2016-04-13 17:00:32 +03:00
test_bug_1595962.py libvirt: Remove usage of migrateToURI{2} APIs 2018-07-31 18:57:28 +02:00
test_bug_1620248.py Stop using mox stubs in cast_as_call.py 2017-07-25 00:40:41 +00:00
test_bug_1670627.py Clean up ports and volumes when deleting ERROR instance 2018-02-20 10:32:07 -05:00
test_bug_1671648.py Remove the CachingScheduler 2018-10-18 17:55:36 -04:00
test_bug_1675570.py fixtures: Track volume attachments within CinderFixtureNewAttachFlow 2018-10-22 17:19:31 +01:00
test_bug_1678326.py Commit usage decrement after destroying instance 2017-04-05 15:19:15 -04:00
test_bug_1679750.py Cleanup ugly stub in TestLocalDeleteAllocations 2018-05-16 09:23:55 -04:00
test_bug_1682693.py replace chance with filter scheduler in func tests 2017-08-16 14:42:51 +00:00
test_bug_1689692.py Clean up ports and volumes when deleting ERROR instance 2018-02-20 10:32:07 -05:00
test_bug_1702454.py Functional regression test for evacuate with a target 2017-10-29 13:49:06 -04:00
test_bug_1713783.py Set server status to ERROR if rebuild failed 2018-01-23 11:39:45 -05:00
test_bug_1718455.py Ensure instance can migrate when launched concurrently 2017-09-28 11:40:54 -04:00
test_bug_1718512.py Fix race fail in test_resize_with_reschedule_then_live_migrate 2018-04-11 10:43:34 -04:00
test_bug_1719730.py Set group_members when converting to legacy request spec 2017-09-27 20:52:19 +00:00
test_bug_1732947.py Implement new attach Cinder flow 2017-12-07 10:29:15 -05:00
test_bug_1735407.py Skip test_parallel_evacuate_with_server_group until fixed 2018-10-03 11:42:15 -04:00
test_bug_1741125.py Remove the CachingScheduler 2018-10-18 17:55:36 -04:00
test_bug_1741307.py Remove the CachingScheduler 2018-10-18 17:55:36 -04:00
test_bug_1746483.py Handle volume-backed instances in IsolatedHostsFilter 2018-02-11 17:23:38 -05:00
test_bug_1746509.py Use nova.db.api directly 2018-07-10 14:56:27 +00:00
test_bug_1764883.py compute: Ensure pre-migrating instances are destroyed during init_host 2018-07-20 15:46:25 -04:00
test_bug_1780373.py Fix server_group_members quota check 2018-07-06 16:57:31 -04:00
test_bug_1781710.py Update RequestSpec.instance_uuid during scheduling 2018-07-19 14:50:09 -04:00
test_bug_1784353.py conductor: Recreate volume attachments during a reschedule 2018-10-22 15:29:15 -04:00
test_bug_1794996.py Add functional regression test for bug 1794996 2018-10-25 16:15:56 -04:00
test_bug_1797580.py Don't persist RequestSpec.requested_destination 2018-10-15 10:47:28 -04:00

README.rst

Tests for Specific Regressions

When we have a bug reported by end users that we can write a full stack reproduce on, we should. And we should keep a regression test for that bug in our tree. It can be deleted at some future date if needed, but largely should not be changed.

Writing Regression Tests

  • These should be full stack tests which inherit from nova.test.TestCase directly. (This is to prevent coupling with other tests).
  • They should setup a full stack cloud in their setUp via fixtures
  • They should each live in a file which is named test_bug######.py

Writing Tests Before the Bug is Fixed

TODO describe writing and landing tests before the bug is fixed as a reproduce.