Execute volume tests only when cinder is available

This change makes sure that the scenario tests which require cinder are
skipped when the [service_available] cinder option is False.

Change-Id: I94c48ecd28acadda39abf4ef794434a72e9a7002

heat_tempest_plugin/common/test.py

@@ -109,6 +109,20 @@ def requires_resource_type(resource_type):
     return decorator
 
 
+def requires_service(service):
+    '''Decorator for tests requiring a specific service being available.
+
+    The decorated test will be skipped when a service is not available. This
+    based on the [service_available] options implemented in tempest
+    '''
+    def decorator(test_method)
+        conf = config.CONF.service_available
+        if not getattr(conf, service + '_enabled', True):
+            skipper = testtools.skip("%s is not available" % service)
+            return skipper(test_method)
+    return decorator
+
+
 def requires_service_type(service_type):
     '''Decorator for tests requiring a specific service being available.
 

heat_tempest_plugin/tests/scenario/test_base_resources.py

@@ -17,6 +17,7 @@ from heat_tempest_plugin.common import test
 from heat_tempest_plugin.tests.scenario import scenario_base
 
 
+@test.requires_service('volume')
 class BasicResourcesTest(scenario_base.ScenarioTestsBase):
 
     def setUp(self):

heat_tempest_plugin/tests/scenario/test_volumes.py

@@ -15,6 +15,7 @@ from cinderclient import exceptions as cinder_exceptions
 import copy
 from oslo_log import log as logging
 import six
+from tempest import config
 from tempest.lib import decorators
 
 from heat_tempest_plugin.common import exceptions
@@ -25,6 +26,7 @@ LOG = logging.getLogger(__name__)
 
 
 @test.requires_service_feature('volume', 'backup')
+@test.requires_service('volume')
 class VolumeBackupRestoreIntegrationTest(scenario_base.ScenarioTestsBase):
     """Class is responsible for testing of volume backup."""