functional: Don't inherit from 'ProviderUsageBaseTestCase'

It's not necessary for this test case since we don't query placement
stuff.

Change-Id: I5136b1cab8d704f55d01e5490c42ead6e3e14d98
Signed-off-by: Stephen Finucane <stephenfin@redhat.com>
(cherry picked from commit e91b07dc522db6b6e4df8972437f78ef2697790b)

1 files changed, 7 insertions, 3 deletions

diff --git a/nova/tests/functional/regressions/test_bug_1879878.py b/nova/tests/functional/regressions/test_bug_1879878.py
index d6f2b11688..fd587e5ddd 100644
--- a/nova/tests/functional/regressions/test_bug_1879878.py
+++ b/nova/tests/functional/regressions/test_bug_1879878.py
@@ -19,7 +19,7 @@ from nova.tests.functional import integrated_helpers
 
 
 @ddt.ddt
-class TestColdMigrationUsage(integrated_helpers.ProviderUsageBaseTestCase):
+class TestColdMigrationUsage(integrated_helpers._IntegratedTestBase):
     """Reproducer for bug #1879878.
 
     Demonstrate the possibility of races caused by running the resource
@@ -27,16 +27,20 @@ class TestColdMigrationUsage(integrated_helpers.ProviderUsageBaseTestCase):
     reverted and dropping the claim for that migration on the source or
     destination host, respectively.
     """
+
     compute_driver = 'fake.MediumFakeDriver'
+    microversion = 'latest'
 
     def setUp(self):
+        self.flags(compute_driver=self.compute_driver)
         super().setUp()
+        self.ctxt = nova_context.get_admin_context()
+
+    def _setup_compute_service(self):
         # Start two computes so we can migrate between them.
         self._start_compute('host1')
         self._start_compute('host2')
 
-        self.ctxt = nova_context.get_admin_context()
-
     def _create_server(self):
         """Creates and return a server along with a source host and target
         host.