Fix py27 UT gate

1.Fix TypeError: 'Mock' object is not iterable error
2.import openstack_dashboard.test.settings

Change-Id: I9f2b640b1d58bc4f3f559458d9eed92c9594e686

muranodashboard/tests/settings.py

@@ -18,11 +18,7 @@ DATABASES = {'default': {'ENGINE': 'django.db.backends.sqlite3',
                          'NAME': 'test'}}
 
 from horizon.test.settings import *  # noqa
-
-try:
-    from openstack_dashboard.defaults import *  # noqa
-except ImportError:
-    pass
+from openstack_dashboard.test.settings import *  # noqa
 
 socket.setdefaulttimeout(1)
 

muranodashboard/tests/unit/environments/test_views.py

@@ -80,6 +80,7 @@ class TestEnvironmentDetails(unittest.TestCase):
         mock_request = mock.Mock()
         mock_request.user.service_catalog = None
         mock_token = mock.MagicMock()
+        mock_request.user.authorized_tenants = [mock.Mock()]
         mock_token.tenant.__getitem__.return_value = 'foo_tenant_id'
         mock_request.session = {'token': mock_token}
         mock_tab_group = mock.Mock()