diff --git a/appengine/standard/localtesting/datastore_test.py b/appengine/standard/localtesting/datastore_test.py
deleted file mode 100644
index 8a505d05b1a..00000000000
--- a/appengine/standard/localtesting/datastore_test.py
+++ /dev/null
@@ -1,165 +0,0 @@
-# Copyright 2015 Google Inc
-#
-#    Licensed under the Apache License, Version 2.0 (the "License");
-#    you may not use this file except in compliance with the License.
-#    You may obtain a copy of the License at
-#
-#        http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS,
-#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#    See the License for the specific language governing permissions and
-#    limitations under the License.
-
-# [START imports]
-import unittest
-
-from google.appengine.api import memcache
-from google.appengine.ext import ndb
-from google.appengine.ext import testbed
-# [END imports]
-
-
-# [START datastore_example_1]
-class TestModel(ndb.Model):
-    """A model class used for testing."""
-    number = ndb.IntegerProperty(default=42)
-    text = ndb.StringProperty()
-
-
-class TestEntityGroupRoot(ndb.Model):
-    """Entity group root"""
-    pass
-
-
-def GetEntityViaMemcache(entity_key):
-    """Get entity from memcache if available, from datastore if not."""
-    entity = memcache.get(entity_key)
-    if entity is not None:
-        return entity
-    key = ndb.Key(urlsafe=entity_key)
-    entity = key.get()
-    if entity is not None:
-        memcache.set(entity_key, entity)
-    return entity
-# [END datastore_example_1]
-
-
-# [START datastore_example_test]
-class DatastoreTestCase(unittest.TestCase):
-
-    def setUp(self):
-        # 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()
-        # Next, declare which service stubs you want to use.
-        self.testbed.init_datastore_v3_stub()
-        self.testbed.init_memcache_stub()
-        # Clear ndb's in-context cache between tests.
-        # This prevents data from leaking between tests.
-        # Alternatively, you could disable caching by
-        # using ndb.get_context().set_cache_policy(False)
-        ndb.get_context().clear_cache()
-
-# [END datastore_example_test]
-
-    # [START datastore_example_teardown]
-    def tearDown(self):
-        self.testbed.deactivate()
-    # [END datastore_example_teardown]
-
-    # [START datastore_example_insert]
-    def testInsertEntity(self):
-        TestModel().put()
-        self.assertEqual(1, len(TestModel.query().fetch(2)))
-    # [END datastore_example_insert]
-
-    # [START datastore_example_filter]
-    def testFilterByNumber(self):
-        root = TestEntityGroupRoot(id="root")
-        TestModel(parent=root.key).put()
-        TestModel(number=17, parent=root.key).put()
-        query = TestModel.query(ancestor=root.key).filter(
-            TestModel.number == 42)
-        results = query.fetch(2)
-        self.assertEqual(1, len(results))
-        self.assertEqual(42, results[0].number)
-    # [END datastore_example_filter]
-
-    # [START datastore_example_memcache]
-    def testGetEntityViaMemcache(self):
-        entity_key = TestModel(number=18).put().urlsafe()
-        retrieved_entity = GetEntityViaMemcache(entity_key)
-        self.assertNotEqual(None, retrieved_entity)
-        self.assertEqual(18, retrieved_entity.number)
-    # [END datastore_example_memcache]
-
-
-# [START HRD_example_1]
-from google.appengine.datastore import datastore_stub_util  # noqa
-
-
-class HighReplicationTestCaseOne(unittest.TestCase):
-
-    def setUp(self):
-        # 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)
-        # Initialize memcache stub too, since ndb also uses memcache
-        self.testbed.init_memcache_stub()
-        # Clear in-context cache before each test.
-        ndb.get_context().clear_cache()
-
-    def tearDown(self):
-        self.testbed.deactivate()
-
-    def testEventuallyConsistentGlobalQueryResult(self):
-        class TestModel(ndb.Model):
-            pass
-
-        user_key = ndb.Key('User', 'ryan')
-
-        # Put two entities
-        ndb.put_multi([
-            TestModel(parent=user_key),
-            TestModel(parent=user_key)
-        ])
-
-        # Global query doesn't see the data.
-        self.assertEqual(0, TestModel.query().count(3))
-        # Ancestor query does see the data.
-        self.assertEqual(2, TestModel.query(ancestor=user_key).count(3))
-# [END HRD_example_1]
-
-    # [START HRD_example_2]
-    def testDeterministicOutcome(self):
-        # 50% chance to apply.
-        self.policy.SetProbability(.5)
-        # Use the pseudo random sequence derived from seed=2.
-        self.policy.SetSeed(2)
-
-        class TestModel(ndb.Model):
-            pass
-
-        TestModel().put()
-
-        self.assertEqual(0, TestModel.query().count(3))
-        self.assertEqual(0, TestModel.query().count(3))
-        # Will always be applied before the third query.
-        self.assertEqual(1, TestModel.query().count(3))
-    # [END HRD_example_2]
-
-
-# [START main]
-if __name__ == '__main__':
-    unittest.main()
-# [END main]
diff --git a/appengine/standard/localtesting/env_vars_test.py b/appengine/standard/localtesting/env_vars_test.py
deleted file mode 100644
index 31e374def64..00000000000
--- a/appengine/standard/localtesting/env_vars_test.py
+++ /dev/null
@@ -1,41 +0,0 @@
-# Copyright 2015 Google Inc
-#
-#    Licensed under the Apache License, Version 2.0 (the "License");
-#    you may not use this file except in compliance with the License.
-#    You may obtain a copy of the License at
-#
-#        http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS,
-#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#    See the License for the specific language governing permissions and
-#    limitations under the License.
-
-# [START env_example]
-import os
-import unittest
-
-from google.appengine.ext import testbed
-
-
-class EnvVarsTestCase(unittest.TestCase):
-    def setUp(self):
-        self.testbed = testbed.Testbed()
-        self.testbed.activate()
-        self.testbed.setup_env(
-            app_id='your-app-id',
-            my_config_setting='example',
-            overwrite=True)
-
-    def tearDown(self):
-        self.testbed.deactivate()
-
-    def testEnvVars(self):
-        self.assertEqual(os.environ['APPLICATION_ID'], 'your-app-id')
-        self.assertEqual(os.environ['MY_CONFIG_SETTING'], 'example')
-# [END env_example]
-
-
-if __name__ == '__main__':
-    unittest.main()
diff --git a/appengine/standard/localtesting/login_test.py b/appengine/standard/localtesting/login_test.py
deleted file mode 100644
index 8886b8cb6e6..00000000000
--- a/appengine/standard/localtesting/login_test.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# Copyright 2015 Google Inc
-#
-#    Licensed under the Apache License, Version 2.0 (the "License");
-#    you may not use this file except in compliance with the License.
-#    You may obtain a copy of the License at
-#
-#        http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS,
-#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#    See the License for the specific language governing permissions and
-#    limitations under the License.
-
-# [START login_example]
-import unittest
-
-from google.appengine.api import users
-from google.appengine.ext import testbed
-
-
-class LoginTestCase(unittest.TestCase):
-    # [START setup]
-    def setUp(self):
-        self.testbed = testbed.Testbed()
-        self.testbed.activate()
-        self.testbed.init_user_stub()
-    # [END setup]
-
-    def tearDown(self):
-        self.testbed.deactivate()
-
-    # [START login]
-    def loginUser(self, email='user@example.com', id='123', is_admin=False):
-        self.testbed.setup_env(
-            user_email=email,
-            user_id=id,
-            user_is_admin='1' if is_admin else '0',
-            overwrite=True)
-    # [END login]
-
-    # [START test]
-    def testLogin(self):
-        self.assertFalse(users.get_current_user())
-        self.loginUser()
-        self.assertEquals(users.get_current_user().email(), 'user@example.com')
-        self.loginUser(is_admin=True)
-        self.assertTrue(users.is_current_user_admin())
-    # [END test]
-# [END login_example]
-
-
-if __name__ == '__main__':
-    unittest.main()
diff --git a/appengine/standard/localtesting/mail_test.py b/appengine/standard/localtesting/mail_test.py
deleted file mode 100644
index a362aa210eb..00000000000
--- a/appengine/standard/localtesting/mail_test.py
+++ /dev/null
@@ -1,45 +0,0 @@
-# Copyright 2015 Google Inc
-#
-#    Licensed under the Apache License, Version 2.0 (the "License");
-#    you may not use this file except in compliance with the License.
-#    You may obtain a copy of the License at
-#
-#        http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS,
-#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#    See the License for the specific language governing permissions and
-#    limitations under the License.
-
-# [START mail_example]
-import unittest
-
-from google.appengine.api import mail
-from google.appengine.ext import testbed
-
-
-class MailTestCase(unittest.TestCase):
-
-    def setUp(self):
-        self.testbed = testbed.Testbed()
-        self.testbed.activate()
-        self.testbed.init_mail_stub()
-        self.mail_stub = self.testbed.get_stub(testbed.MAIL_SERVICE_NAME)
-
-    def tearDown(self):
-        self.testbed.deactivate()
-
-    def testMailSent(self):
-        mail.send_mail(to='alice@example.com',
-                       subject='This is a test',
-                       sender='bob@example.com',
-                       body='This is a test e-mail')
-        messages = self.mail_stub.get_sent_messages(to='alice@example.com')
-        self.assertEqual(1, len(messages))
-        self.assertEqual('alice@example.com', messages[0].to)
-# [END mail_example]
-
-
-if __name__ == '__main__':
-    unittest.main()
diff --git a/appengine/standard/localtesting/memcache_test.py b/appengine/standard/localtesting/memcache_test.py
new file mode 100644
index 00000000000..ffecc2474e6
--- /dev/null
+++ b/appengine/standard/localtesting/memcache_test.py
@@ -0,0 +1,62 @@
+# Copyright 2015 Google Inc
+#
+#    Licensed under the Apache License, Version 2.0 (the "License");
+#    you may not use this file except in compliance with the License.
+#    You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS,
+#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#    See the License for the specific language governing permissions and
+#    limitations under the License.
+
+import calendar
+import datetime
+import unittest
+import mock
+import time
+
+from google.appengine.api import memcache
+from google.appengine.ext import testbed
+
+
+class MemcacheTestCase(unittest.TestCase):
+    def setUp(self):
+        self.testbed = testbed.Testbed()
+        self.testbed.activate()
+        self.testbed.init_memcache_stub()
+
+    def tearDown(self):
+        self.testbed.deactivate()
+        
+    @mock.patch('time.time')
+    def testMemcache(self, time_mock):
+    	initial_datetime = datetime.datetime(year=2018, month=7, day=5, hour=9, minute=1, second=0)
+    	time_mock.return_value = time.mktime(initial_datetime.timetuple())
+    	
+    	day_after = datetime.datetime(year=2018, month=7, day=6, hour=9, minute=1, second=0)
+    	memcache.set('TEST_K', 1, time=calendar.timegm(day_after.timetuple()))
+    	self.assertEqual(memcache.get('TEST_K'), 1)
+        
+    @mock.patch('time.time')
+    def testMemcacheExpiration(self, time_mock):
+    	initial_datetime = datetime.datetime(year=2018, month=7, day=1, hour=9, minute=1, second=0)
+    	time_mock.return_value = time.mktime(initial_datetime.timetuple())
+    	#mock.patch('time.time', mock.MagicMock(return_value=time.mktime(initial_datetime.timetuple())))
+    	
+    	day_after = datetime.datetime(year=2018, month=7, day=2, hour=9, minute=0, second=0)
+    	memcache.set('TEST_K', 1, time=calendar.timegm(day_after.timetuple()))
+    	self.assertEqual(memcache.get('TEST_K'), 1)
+    	
+    	day_after_after = datetime.datetime(year=2018, month=7, day=3, hour=9, minute=1, second=0)
+    	time_mock.return_value = time.mktime(day_after_after.timetuple())
+    	#mock.patch('time.time', mock.MagicMock(return_value=time.mktime(day_after_tomorrow.timetuple())))
+    	
+    	self.assertIsNone(memcache.get('TEST_K'))
+
+
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/appengine/standard/localtesting/task_queue_test.py b/appengine/standard/localtesting/task_queue_test.py
deleted file mode 100644
index 2472fe18887..00000000000
--- a/appengine/standard/localtesting/task_queue_test.py
+++ /dev/null
@@ -1,90 +0,0 @@
-# Copyright 2015 Google Inc
-#
-#    Licensed under the Apache License, Version 2.0 (the "License");
-#    you may not use this file except in compliance with the License.
-#    You may obtain a copy of the License at
-#
-#        http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS,
-#    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-#    See the License for the specific language governing permissions and
-#    limitations under the License.
-
-# [START taskqueue]
-import operator
-import os
-import unittest
-
-from google.appengine.api import taskqueue
-from google.appengine.ext import deferred
-from google.appengine.ext import testbed
-
-
-class TaskQueueTestCase(unittest.TestCase):
-    def setUp(self):
-        self.testbed = testbed.Testbed()
-        self.testbed.activate()
-
-        # root_path must be set the the location of queue.yaml.
-        # Otherwise, only the 'default' queue will be available.
-        self.testbed.init_taskqueue_stub(
-            root_path=os.path.join(os.path.dirname(__file__), 'resources'))
-        self.taskqueue_stub = self.testbed.get_stub(
-            testbed.TASKQUEUE_SERVICE_NAME)
-
-    def tearDown(self):
-        self.testbed.deactivate()
-
-    def testTaskAddedToQueue(self):
-        taskqueue.Task(name='my_task', url='/url/of/my/task/').add()
-        tasks = self.taskqueue_stub.get_filtered_tasks()
-        self.assertEqual(len(tasks), 1)
-        self.assertEqual(tasks[0].name, 'my_task')
-# [END taskqueue]
-
-    # [START filtering]
-    def testFiltering(self):
-        taskqueue.Task(name='task_one', url='/url/of/task/1/').add('queue-1')
-        taskqueue.Task(name='task_two', url='/url/of/task/2/').add('queue-2')
-
-        # All tasks
-        tasks = self.taskqueue_stub.get_filtered_tasks()
-        self.assertEqual(len(tasks), 2)
-
-        # Filter by name
-        tasks = self.taskqueue_stub.get_filtered_tasks(name='task_one')
-        self.assertEqual(len(tasks), 1)
-        self.assertEqual(tasks[0].name, 'task_one')
-
-        # Filter by URL
-        tasks = self.taskqueue_stub.get_filtered_tasks(url='/url/of/task/1/')
-        self.assertEqual(len(tasks), 1)
-        self.assertEqual(tasks[0].name, 'task_one')
-
-        # Filter by queue
-        tasks = self.taskqueue_stub.get_filtered_tasks(queue_names='queue-1')
-        self.assertEqual(len(tasks), 1)
-        self.assertEqual(tasks[0].name, 'task_one')
-
-        # Multiple queues
-        tasks = self.taskqueue_stub.get_filtered_tasks(
-            queue_names=['queue-1', 'queue-2'])
-        self.assertEqual(len(tasks), 2)
-    # [END filtering]
-
-    # [START deferred]
-    def testTaskAddedByDeferred(self):
-        deferred.defer(operator.add, 1, 2)
-
-        tasks = self.taskqueue_stub.get_filtered_tasks()
-        self.assertEqual(len(tasks), 1)
-
-        result = deferred.run(tasks[0].payload)
-        self.assertEqual(result, 3)
-    # [END deferred]
-
-
-if __name__ == '__main__':
-    unittest.main()