Fixed authentication issues in unit tests

The tests were logging in incorrectly, which came to light due to Pillar
commit 4b5a961e1422d8e976b2bf8bb9a4f91addf9bbec.

tests/abstract_attract_test.py

@@ -28,6 +28,7 @@ class AbstractAttractTest(AbstractPillarTest):
 
     def ensure_project_exists(self, project_overrides=None):
         from attract.setup import setup_for_attract
+        import pillar.tests.common_test_data as ctd
 
         project_overrides = dict(
             picture_header=None,
@@ -35,6 +36,7 @@ class AbstractAttractTest(AbstractPillarTest):
             **(project_overrides or {})
         )
         proj_id, project = AbstractPillarTest.ensure_project_exists(self, project_overrides)
+        ctd.EXAMPLE_USER['groups'].append(ctd.EXAMPLE_ADMIN_GROUP_ID)
 
         with self.app.test_request_context():
             attract_project = setup_for_attract(project['url'],