Functional test UpdateStackTest
This is a port of tempest.api.orchestration.stacks.stack_update
in an effort to reproduce the postgres race described in
bug #1370865.
Subsequent changes will create an experimental postgres check job and
a change to the test which runs test_stack_update_add_remove enough
times to triger the race.
Change-Id: I8aee26e29f242b11a5d3c8d56a859ae770be86c2
Related-Bug: #1370865
diff --git a/functional/test_update.py b/functional/test_update.py
new file mode 100644
index 0000000..8cfb5c3
--- /dev/null
+++ b/functional/test_update.py
@@ -0,0 +1,116 @@
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+import logging
+
+from heat_integrationtests.common import test
+
+
+LOG = logging.getLogger(__name__)
+
+
+class UpdateStackTest(test.HeatIntegrationTest):
+
+ template = '''
+heat_template_version: 2013-05-23
+resources:
+ random1:
+ type: OS::Heat::RandomString
+'''
+ update_template = '''
+heat_template_version: 2013-05-23
+resources:
+ random1:
+ type: OS::Heat::RandomString
+ random2:
+ type: OS::Heat::RandomString
+'''
+
+ def setUp(self):
+ super(UpdateStackTest, self).setUp()
+ self.client = self.orchestration_client
+
+ def update_stack(self, stack_identifier, template):
+ stack_name = stack_identifier.split('/')[0]
+ self.client.stacks.update(
+ stack_id=stack_identifier,
+ stack_name=stack_name,
+ template=template,
+ files={},
+ disable_rollback=True,
+ parameters={},
+ environment={}
+ )
+ self._wait_for_stack_status(stack_identifier, 'UPDATE_COMPLETE')
+
+ def list_resources(self, stack_identifier):
+ resources = self.client.resources.list(stack_identifier)
+ return dict((r.resource_name, r.resource_type) for r in resources)
+
+ def test_stack_update_nochange(self):
+ stack_name = self._stack_rand_name()
+ self.client.stacks.create(
+ stack_name=stack_name,
+ template=self.template,
+ files={},
+ disable_rollback=True,
+ parameters={},
+ environment={}
+ )
+ self.addCleanup(self.client.stacks.delete, stack_name)
+
+ stack = self.client.stacks.get(stack_name)
+ stack_identifier = '%s/%s' % (stack_name, stack.id)
+
+ self._wait_for_stack_status(stack_identifier, 'CREATE_COMPLETE')
+ expected_resources = {'random1': 'OS::Heat::RandomString'}
+ self.assertEqual(expected_resources,
+ self.list_resources(stack_identifier))
+
+ # Update with no changes, resources should be unchanged
+ self.update_stack(stack_identifier, self.template)
+ self.assertEqual(expected_resources,
+ self.list_resources(stack_identifier))
+
+ def test_stack_update_add_remove(self):
+ stack_name = self._stack_rand_name()
+
+ self.client.stacks.create(
+ stack_name=stack_name,
+ template=self.template,
+ files={},
+ disable_rollback=True,
+ parameters={},
+ environment={}
+ )
+ self.addCleanup(self.client.stacks.delete, stack_name)
+
+ stack = self.client.stacks.get(stack_name)
+ stack_identifier = '%s/%s' % (stack_name, stack.id)
+
+ self._wait_for_stack_status(stack_identifier, 'CREATE_COMPLETE')
+ initial_resources = {'random1': 'OS::Heat::RandomString'}
+ self.assertEqual(initial_resources,
+ self.list_resources(stack_identifier))
+
+ # Add one resource via a stack update
+ self.update_stack(stack_identifier, self.update_template)
+ stack = self.client.stacks.get(stack_identifier)
+ updated_resources = {'random1': 'OS::Heat::RandomString',
+ 'random2': 'OS::Heat::RandomString'}
+ self.assertEqual(updated_resources,
+ self.list_resources(stack_identifier))
+
+ # Then remove it by updating with the original template
+ self.update_stack(stack_identifier, self.template)
+ self.assertEqual(initial_resources,
+ self.list_resources(stack_identifier))