diff --git a/tempest/api/messaging/base.py b/tempest/api/messaging/base.py
index 58511a9..eae0707 100644
--- a/tempest/api/messaging/base.py
+++ b/tempest/api/messaging/base.py
@@ -35,13 +35,25 @@
     """
 
     @classmethod
-    def resource_setup(cls):
-        super(BaseMessagingTest, cls).resource_setup()
+    def skip_checks(cls):
+        super(BaseMessagingTest, cls).skip_checks()
         if not CONF.service_available.zaqar:
             raise cls.skipException("Zaqar support is required")
-        os = cls.get_client_manager()
+
+    @classmethod
+    def setup_credentials(cls):
+        super(BaseMessagingTest, cls).setup_credentials()
+        cls.os = cls.get_client_manager()
+
+    @classmethod
+    def setup_clients(cls):
+        super(BaseMessagingTest, cls).setup_clients()
+        cls.client = cls.os.messaging_client
+
+    @classmethod
+    def resource_setup(cls):
+        super(BaseMessagingTest, cls).resource_setup()
         cls.messaging_cfg = CONF.messaging
-        cls.client = os.messaging_client
 
     @classmethod
     def create_queue(cls, queue_name):
diff --git a/tempest/api_schema/response/compute/v2/images.py b/tempest/api_schema/response/compute/v2/images.py
index 923c744..2317e6b 100644
--- a/tempest/api_schema/response/compute/v2/images.py
+++ b/tempest/api_schema/response/compute/v2/images.py
@@ -12,15 +12,20 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import copy
+
 from tempest.api_schema.response.compute import parameter_types
 
+image_links = copy.deepcopy(parameter_types.links)
+image_links['items']['properties'].update({'type': {'type': 'string'}})
+
 common_image_schema = {
     'type': 'object',
     'properties': {
         'id': {'type': 'string'},
         'status': {'type': 'string'},
         'updated': {'type': 'string'},
-        'links': parameter_types.links,
+        'links': image_links,
         'name': {'type': 'string'},
         'created': {'type': 'string'},
         'minDisk': {'type': 'integer'},
@@ -67,7 +72,7 @@
                     'type': 'object',
                     'properties': {
                         'id': {'type': 'string'},
-                        'links': parameter_types.links,
+                        'links': image_links,
                         'name': {'type': 'string'}
                     },
                     'required': ['id', 'links', 'name']