Fix imports due to changes in tempest

Change-Id: I4705912e25e2e7517b78cf98fd87c36ab8402bc2

mistral/tests/functional/api/v1/test_mistral_basic.py

@@ -15,8 +15,8 @@
 import json
 import uuid
 
-from tempest import exceptions
 from tempest import test
+from tempest_lib import exceptions
 
 from mistral.tests.functional import base
 

mistral/tests/functional/api/v2/test_mistral_basic_v2.py

@@ -12,8 +12,8 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from tempest import exceptions
 from tempest import test
+from tempest_lib import exceptions
 
 from mistral.tests.functional import base
 

mistral/tests/functional/base.py

@@ -19,10 +19,11 @@ import time
 
 from tempest import auth
 from tempest import clients
-from tempest.common import rest_client
 from tempest import config
-from tempest import exceptions
-import tempest.test
+from tempest import test as test
+from tempest_lib.common import rest_client
+from tempest_lib import exceptions
+
 
 CONF = config.CONF
 
@@ -304,7 +305,7 @@ class AuthProv(auth.KeystoneV2AuthProvider):
         return ''
 
 
-class TestCase(tempest.test.BaseTestCase):
+class TestCase(test.BaseTestCase):
 
     @classmethod
     def setUpClass(cls):

mistral/tests/functional/engine/actions/test_openstack_actions.py

@@ -101,6 +101,6 @@ class OpenStackActionsTest(base.TestCaseAdvanced):
         self.assertEqual('SUCCESS', execution['state'])
 
         output = json.loads(final_task['output'])
-        _, image = self.images_client.get_image(output['image_id'])
+        image = self.images_client.get_image(output['image_id'])
 
         self.assertEqual(output['image_name'], image['name'])