diff options
Diffstat (limited to 'nova/tests/functional/test_service.py')
| -rw-r--r-- | nova/tests/functional/test_service.py | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/nova/tests/functional/test_service.py b/nova/tests/functional/test_service.py index 65b41594bd..21e9a519ee 100644 --- a/nova/tests/functional/test_service.py +++ b/nova/tests/functional/test_service.py @@ -10,8 +10,12 @@ # License for the specific language governing permissions and limitations # under the License. +import functools from unittest import mock +import fixtures +from oslo_utils.fixture import uuidsentinel as uuids + from nova import context as nova_context from nova import exception from nova.objects import service @@ -19,6 +23,7 @@ from nova import test from nova.tests import fixtures as nova_fixtures from nova.tests.functional import fixtures as func_fixtures from nova.tests.functional import integrated_helpers +from nova.virt import node class ServiceTestCase(test.TestCase, @@ -137,3 +142,83 @@ class TestOldComputeCheck( return_value=old_version): self.assertRaises( exception.TooOldComputeService, self._start_compute, 'host1') + + +class TestComputeStartupChecks(test.TestCase): + STUB_COMPUTE_ID = False + + def setUp(self): + super().setUp() + self.useFixture(nova_fixtures.RealPolicyFixture()) + self.useFixture(nova_fixtures.NeutronFixture(self)) + self.useFixture(nova_fixtures.GlanceFixture(self)) + self.useFixture(func_fixtures.PlacementFixture()) + + self._local_uuid = str(uuids.node) + + self.useFixture(fixtures.MockPatch( + 'nova.virt.node.get_local_node_uuid', + functools.partial(self.local_uuid, True))) + self.useFixture(fixtures.MockPatch( + 'nova.virt.node.read_local_node_uuid', + self.local_uuid)) + self.useFixture(fixtures.MockPatch( + 'nova.virt.node.write_local_node_uuid', + mock.DEFAULT)) + self.flags(compute_driver='fake.FakeDriverWithoutFakeNodes') + + def local_uuid(self, get=False): + if get and not self._local_uuid: + # Simulate the get_local_node_uuid behavior of calling write once + self._local_uuid = str(uuids.node) + node.write_local_node_uuid(self._local_uuid) + return self._local_uuid + + def test_compute_node_identity_greenfield(self): + # Level-set test case to show that starting and re-starting without + # any error cases works as expected. + + # Start with no local compute_id + self._local_uuid = None + self.start_service('compute') + + # Start should have generated and written a compute id + node.write_local_node_uuid.assert_called_once_with(str(uuids.node)) + + # Starting again should succeed and not cause another write + self.start_service('compute') + node.write_local_node_uuid.assert_called_once_with(str(uuids.node)) + + def test_compute_node_identity_deleted(self): + self.start_service('compute') + + # Simulate the compute_id file being deleted + self._local_uuid = None + + # Should refuse to start because it's not our first time and the file + # being missing is a hard error. + exc = self.assertRaises(exception.InvalidConfiguration, + self.start_service, 'compute') + self.assertIn('lost that state', str(exc)) + + def test_compute_node_hostname_changed(self): + # Start our compute once to create the node record + self.start_service('compute') + + # Starting with a different hostname should trigger the abort + exc = self.assertRaises(exception.InvalidConfiguration, + self.start_service, 'compute', host='other') + self.assertIn('hypervisor_hostname', str(exc)) + + def test_compute_node_uuid_changed(self): + # Start our compute once to create the node record + self.start_service('compute') + + # Simulate a changed local compute_id file + self._local_uuid = str(uuids.othernode) + + # We should fail to create the compute node record again, but with a + # useful error message about why. + exc = self.assertRaises(exception.InvalidConfiguration, + self.start_service, 'compute') + self.assertIn('Duplicate compute node record', str(exc)) |