DRY on unittests

appengine/memcache/guestbook/tests/test_guestbook.py

@@ -12,36 +12,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest
-
 # from the app main.py
 from appengine.memcache.guestbook import main
-
-from google.appengine.datastore import datastore_stub_util
-from google.appengine.ext import testbed
+from tests import DatastoreTestbed
 
 import webapp2
 
 
-class TestHandlers(unittest.TestCase):
-    def setUp(self):
-        """Setup the datastore and memcache stub."""
-        # First, create an instance of the Testbed class.
-        self.testbed = testbed.Testbed()
-        # Then activate the testbed, which prepares the service stubs for
-        # use.
-        self.testbed.activate()
-        # Create a consistency policy that will simulate the High
-        # Replication consistency model.
-        self.policy = datastore_stub_util.PseudoRandomHRConsistencyPolicy(
-            probability=0)
-        # Initialize the datastore stub with this policy.
-        self.testbed.init_datastore_v3_stub(consistency_policy=self.policy)
-        self.testbed.init_memcache_stub()
-
-    def tearDown(self):
-        self.testbed.deactivate()
-
+class TestHandlers(DatastoreTestbed):
     def test_hello(self):
         # Build a request object passing the URI path to be tested.
         # You can also pass headers, query arguments etc.

datastore/ndb/modeling/tests/test_contact_with_group_models.py

@@ -14,17 +14,14 @@
 
 """Test classes for code snippet for modeling article."""
 
-
-import unittest
-
 from datastore.ndb.modeling import contact_with_group_models as models
 
 from google.appengine.ext import ndb
 
-import test_base
+from tests import DatastoreTestbed
 
 
-class ContactTestCase(test_base.TestCase):
+class ContactTestCase(DatastoreTestbed):
     """A test case for the Contact model with groups."""
     def setUp(self):
         """Creates 3 contacts and 1 group.
@@ -57,7 +54,3 @@ def test_groups(self):
         # How about 'members' property?
         friend_list = friends.members.fetch()
         self.assertEqual(len(friend_list), 1)
-
-
-if __name__ == '__main__':
-    unittest.main()

datastore/ndb/modeling/tests/test_keyproperty_models.py

@@ -14,15 +14,14 @@
 
 """Test classes for code snippet for modeling article."""
 
-
 import unittest
 
 from datastore.ndb.modeling import keyproperty_models as models
 
-import test_base
+from tests import DatastoreTestbed
 
 
-class ContactTestCase(test_base.TestCase):
+class ContactTestCase(DatastoreTestbed):
     """A test case for the Contact model class with KeyProperty."""
     NAME = 'Takashi Matsuo'
 
@@ -50,7 +49,3 @@ def test_fails(self):
         numbers = contact.phone_numbers.fetch()
         self.assertEqual(1, len(numbers))
     # [END failing_test]
-
-
-if __name__ == '__main__':
-    unittest.main()

datastore/ndb/modeling/tests/test_naive_models.py

@@ -14,15 +14,12 @@
 
 """Test classes for code snippet for modeling article."""
 
-
-import unittest
-
 from datastore.ndb.modeling import naive_models as models
 
-import test_base
+from tests import DatastoreTestbed
 
 
-class ContactTestCase(test_base.TestCase):
+class ContactTestCase(DatastoreTestbed):
     """A test case for the naive Contact model classe."""
     NAME = 'Takashi Matsuo'
 
@@ -36,7 +33,3 @@ def test_basic(self):
         """Test for getting a NaiveContact entity."""
         contact = self.contact_key.get()
         self.assertEqual(contact.name, self.NAME)
-
-
-if __name__ == '__main__':
-    unittest.main()

datastore/ndb/modeling/tests/test_parent_child_models.py

@@ -14,17 +14,14 @@
 
 """Test classes for code snippet for modeling article."""
 
-
-import unittest
-
 from datastore.ndb.modeling import parent_child_models as models
 
 from google.appengine.ext import ndb
 
-import test_base
+from tests import DatastoreTestbed
 
 
-class ContactTestCase(test_base.TestCase):
+class ContactTestCase(DatastoreTestbed):
     """A test case for the Contact model class with KeyProperty."""
     NAME = 'Takashi Matsuo'
 
@@ -83,7 +80,3 @@ def test_phone_numbers(self):
             models.PhoneNumber.phone_type == 'mobile')
         entities = query.fetch()
         self.assertEqual(0, len(entities))
-
-
-if __name__ == '__main__':
-    unittest.main()

datastore/ndb/modeling/tests/test_relation_model_models.py

@@ -14,17 +14,14 @@
 
 """Test classes for code snippet for modeling article."""
 
-
-import unittest
-
 from datastore.ndb.modeling import relation_model_models as models
 
 from google.appengine.ext import ndb
 
-import test_base
+from tests import DatastoreTestbed
 
 
-class ContactTestCase(test_base.TestCase):
+class ContactTestCase(DatastoreTestbed):
     """A test case for the Contact model with relationship model."""
     def setUp(self):
         """Creates 1 contact and 1 company.
@@ -60,7 +57,3 @@ def test_relationship(self):
                               title='president').put()
         # get the list of companies that Mary belongs to
         self.assertEqual(len(mary.companies), 2)
-
-
-if __name__ == '__main__':
-    unittest.main()

datastore/ndb/modeling/tests/test_structured_property_models.py

@@ -14,15 +14,12 @@
 
 """Test classes for code snippet for modeling article."""
 
-
-import unittest
-
 from datastore.ndb.modeling import structured_property_models as models
 
-import test_base
+from tests import DatastoreTestbed
 
 
-class ContactTestCase(test_base.TestCase):
+class ContactTestCase(DatastoreTestbed):
     """A test case for the Contact model with StructuredProperty."""
     def setUp(self):
         """Creates one Contact entity with 2 phone numbers."""
@@ -67,7 +64,3 @@ def test_phone_numbers(self):
         self.assertEqual(len(scott.phone_numbers), 1)
         self.assertEqual(scott.phone_numbers[0].phone_type, 'home')
         self.assertEqual(scott.phone_numbers[0].number, '(650) 555 - 2200')
-
-
-if __name__ == '__main__':
-    unittest.main()

datastore/ndb/overview/tests/test_overview.py

@@ -12,36 +12,15 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest
-
 # from the app main.py
 from datastore.ndb.overview import main
 
-from google.appengine.datastore import datastore_stub_util
-from google.appengine.ext import testbed
+from tests import DatastoreTestbed
 
 import webapp2
 
 
-class TestHandlers(unittest.TestCase):
-    def setUp(self):
-        """Setup the datastore and memcache stub."""
-        # First, create an instance of the Testbed class.
-        self.testbed = testbed.Testbed()
-        # Then activate the testbed, which prepares the service stubs for
-        # use.
-        self.testbed.activate()
-        # Create a consistency policy that will simulate the High
-        # Replication consistency model.
-        self.policy = datastore_stub_util.PseudoRandomHRConsistencyPolicy(
-            probability=0)
-        # Initialize the datastore stub with this policy.
-        self.testbed.init_datastore_v3_stub(consistency_policy=self.policy)
-        self.testbed.init_memcache_stub()
-
-    def tearDown(self):
-        self.testbed.deactivate()
-
+class TestHandlers(DatastoreTestbed):
     def test_hello(self):
         # Build a request object passing the URI path to be tested.
         # You can also pass headers, query arguments etc.

datastore/ndb/transactions/tests/test_transactions.py

@@ -12,38 +12,19 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-import unittest
-
 # from the app main.py
 from datastore.ndb.transactions import main
 
-from google.appengine.datastore import datastore_stub_util
-from google.appengine.ext import testbed
-
+from tests import DatastoreTestbed
 
 
-class TestHandlers(unittest.TestCase):
+class TestHandlers(DatastoreTestbed):
     def setUp(self):
-        """Setup the datastore and memcache stub."""
-        # First, create an instance of the Testbed class.
-        self.testbed = testbed.Testbed()
-        # Then activate the testbed, which prepares the service stubs for
-        # use.
-        self.testbed.activate()
-        # Create a consistency policy that will simulate the High
-        # Replication consistency model.
-        self.policy = datastore_stub_util.PseudoRandomHRConsistencyPolicy(
-            probability=0)
-        # Initialize the datastore stub with this policy.
-        self.testbed.init_datastore_v3_stub(consistency_policy=self.policy)
-        self.testbed.init_memcache_stub()
-
+        super(TestHandlers, self).setUp()
+        self.testbed.init_taskqueue_stub()
         main.app.config['TESTING'] = True
         self.app = main.app.test_client()
 
-    def tearDown(self):
-        self.testbed.deactivate()
-
     def test_hello(self):
         rv = self.app.get('/')
         self.assertIn('Permenant note page', rv.data)

tests/__init__.py

@@ -20,6 +20,9 @@
 import unittest
 import __builtin__
 
+from google.appengine.datastore import datastore_stub_util
+from google.appengine.ext import testbed
+
 BUCKET_NAME_ENV = 'TEST_BUCKET_NAME'
 PROJECT_ID_ENV = 'TEST_PROJECT_ID'
 RESOURCE_PATH = os.path.join(
@@ -77,3 +80,23 @@ def setUp(self):
 
     def tearDown(self):
         os.environ['SERVER_SOFTWARE'] = self._server_software_org
+
+class DatastoreTestbed(unittest.TestCase):
+    """A base test case for common setup/teardown tasks for test."""
+    def setUp(self):
+        """Setup the datastore and memcache stub."""
+        # First, create an instance of the Testbed class.
+        self.testbed = testbed.Testbed()
+        # Then activate the testbed, which prepares the service stubs for
+        # use.
+        self.testbed.activate()
+        # Create a consistency policy that will simulate the High
+        # Replication consistency model.
+        self.policy = datastore_stub_util.PseudoRandomHRConsistencyPolicy(
+            probability=0)
+        # Initialize the datastore stub with this policy.
+        self.testbed.init_datastore_v3_stub(consistency_policy=self.policy)
+        self.testbed.init_memcache_stub()
+
+    def tearDown(self):
+        self.testbed.deactivate()