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-rw-r--r--tests/__init__.py3
-rw-r--r--tests/api/test_auth.py2
-rw-r--r--tests/api/test_filtering.py5
-rw-r--r--tests/crypto/test_keyring.py6
-rw-r--r--tests/handlers/test_auth.py2
-rw-r--r--tests/handlers/test_device.py2
-rw-r--r--tests/handlers/test_directory.py1
-rw-r--r--tests/handlers/test_e2e_keys.py2
-rw-r--r--tests/handlers/test_profile.py1
-rw-r--r--tests/handlers/test_register.py1
-rw-r--r--tests/handlers/test_typing.py1
-rw-r--r--tests/replication/slave/storage/_base.py1
-rw-r--r--tests/rest/client/v1/test_admin.py2
-rw-r--r--tests/rest/client/v1/test_events.py1
-rw-r--r--tests/rest/client/v1/test_profile.py1
-rw-r--r--tests/rest/client/v1/test_register.py2
-rw-r--r--tests/rest/client/v1/test_rooms.py1
-rw-r--r--tests/rest/client/v1/test_typing.py1
-rw-r--r--tests/rest/client/v2_alpha/test_filter.py2
-rw-r--r--tests/rest/client/v2_alpha/test_register.py2
-rw-r--r--tests/rest/client/v2_alpha/test_sync.py2
-rw-r--r--tests/server.py10
-rw-r--r--tests/storage/test_appservice.py13
-rw-r--r--tests/storage/test_background_update.py4
-rw-r--r--tests/storage/test_client_ips.py2
-rw-r--r--tests/storage/test_devices.py2
-rw-r--r--tests/storage/test_directory.py2
-rw-r--r--tests/storage/test_end_to_end_keys.py3
-rw-r--r--tests/storage/test_event_federation.py2
-rw-r--r--tests/storage/test_event_push_actions.py2
-rw-r--r--tests/storage/test_keys.py2
-rw-r--r--tests/storage/test_monthly_active_users.py2
-rw-r--r--tests/storage/test_presence.py2
-rw-r--r--tests/storage/test_profile.py2
-rw-r--r--tests/storage/test_redaction.py2
-rw-r--r--tests/storage/test_registration.py2
-rw-r--r--tests/storage/test_room.py4
-rw-r--r--tests/storage/test_roommember.py2
-rw-r--r--tests/storage/test_state.py2
-rw-r--r--tests/storage/test_user_directory.py2
-rw-r--r--tests/test_federation.py5
-rw-r--r--tests/test_server.py2
-rw-r--r--tests/test_visibility.py2
-rw-r--r--tests/utils.py133
44 files changed, 187 insertions, 58 deletions
diff --git a/tests/__init__.py b/tests/__init__.py
index 24006c949e..9d9ca22829 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -15,4 +15,7 @@
 
 from twisted.trial import util
 
+from tests import utils
+
 util.DEFAULT_TIMEOUT_DURATION = 10
+utils.setupdb()
diff --git a/tests/api/test_auth.py b/tests/api/test_auth.py
index f8e28876bb..a65689ba89 100644
--- a/tests/api/test_auth.py
+++ b/tests/api/test_auth.py
@@ -39,7 +39,7 @@ class AuthTestCase(unittest.TestCase):
         self.state_handler = Mock()
         self.store = Mock()
 
-        self.hs = yield setup_test_homeserver(handlers=None)
+        self.hs = yield setup_test_homeserver(self.addCleanup, handlers=None)
         self.hs.get_datastore = Mock(return_value=self.store)
         self.hs.handlers = TestHandlers(self.hs)
         self.auth = Auth(self.hs)
diff --git a/tests/api/test_filtering.py b/tests/api/test_filtering.py
index 1c2d71052c..48b2d3d663 100644
--- a/tests/api/test_filtering.py
+++ b/tests/api/test_filtering.py
@@ -46,7 +46,10 @@ class FilteringTestCase(unittest.TestCase):
         self.mock_http_client.put_json = DeferredMockCallable()
 
         hs = yield setup_test_homeserver(
-            handlers=None, http_client=self.mock_http_client, keyring=Mock()
+            self.addCleanup,
+            handlers=None,
+            http_client=self.mock_http_client,
+            keyring=Mock(),
         )
 
         self.filtering = hs.get_filtering()
diff --git a/tests/crypto/test_keyring.py b/tests/crypto/test_keyring.py
index 0c6f510d11..8299dc72c8 100644
--- a/tests/crypto/test_keyring.py
+++ b/tests/crypto/test_keyring.py
@@ -58,12 +58,10 @@ class KeyringTestCase(unittest.TestCase):
         self.mock_perspective_server = MockPerspectiveServer()
         self.http_client = Mock()
         self.hs = yield utils.setup_test_homeserver(
-            handlers=None, http_client=self.http_client
+            self.addCleanup, handlers=None, http_client=self.http_client
         )
         keys = self.mock_perspective_server.get_verify_keys()
-        self.hs.config.perspectives = {
-            self.mock_perspective_server.server_name: keys
-        }
+        self.hs.config.perspectives = {self.mock_perspective_server.server_name: keys}
 
     def check_context(self, _, expected):
         self.assertEquals(
diff --git a/tests/handlers/test_auth.py b/tests/handlers/test_auth.py
index ede01f8099..56c0f87fb7 100644
--- a/tests/handlers/test_auth.py
+++ b/tests/handlers/test_auth.py
@@ -35,7 +35,7 @@ class AuthHandlers(object):
 class AuthTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        self.hs = yield setup_test_homeserver(handlers=None)
+        self.hs = yield setup_test_homeserver(self.addCleanup, handlers=None)
         self.hs.handlers = AuthHandlers(self.hs)
         self.auth_handler = self.hs.handlers.auth_handler
         self.macaroon_generator = self.hs.get_macaroon_generator()
diff --git a/tests/handlers/test_device.py b/tests/handlers/test_device.py
index d70d645504..56e7acd37c 100644
--- a/tests/handlers/test_device.py
+++ b/tests/handlers/test_device.py
@@ -34,7 +34,7 @@ class DeviceTestCase(unittest.TestCase):
 
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield utils.setup_test_homeserver()
+        hs = yield utils.setup_test_homeserver(self.addCleanup)
         self.handler = hs.get_device_handler()
         self.store = hs.get_datastore()
         self.clock = hs.get_clock()
diff --git a/tests/handlers/test_directory.py b/tests/handlers/test_directory.py
index 06de9f5eca..ec7355688b 100644
--- a/tests/handlers/test_directory.py
+++ b/tests/handlers/test_directory.py
@@ -46,6 +46,7 @@ class DirectoryTestCase(unittest.TestCase):
         self.mock_registry.register_query_handler = register_query_handler
 
         hs = yield setup_test_homeserver(
+            self.addCleanup,
             http_client=None,
             resource_for_federation=Mock(),
             federation_client=self.mock_federation,
diff --git a/tests/handlers/test_e2e_keys.py b/tests/handlers/test_e2e_keys.py
index 57ab228455..8dccc6826e 100644
--- a/tests/handlers/test_e2e_keys.py
+++ b/tests/handlers/test_e2e_keys.py
@@ -34,7 +34,7 @@ class E2eKeysHandlerTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
         self.hs = yield utils.setup_test_homeserver(
-            handlers=None, federation_client=mock.Mock()
+            self.addCleanup, handlers=None, federation_client=mock.Mock()
         )
         self.handler = synapse.handlers.e2e_keys.E2eKeysHandler(self.hs)
 
diff --git a/tests/handlers/test_profile.py b/tests/handlers/test_profile.py
index 9268a6fe2b..62dc69003c 100644
--- a/tests/handlers/test_profile.py
+++ b/tests/handlers/test_profile.py
@@ -48,6 +48,7 @@ class ProfileTestCase(unittest.TestCase):
         self.mock_registry.register_query_handler = register_query_handler
 
         hs = yield setup_test_homeserver(
+            self.addCleanup,
             http_client=None,
             handlers=None,
             resource_for_federation=Mock(),
diff --git a/tests/handlers/test_register.py b/tests/handlers/test_register.py
index dbec81076f..d48d40c8dd 100644
--- a/tests/handlers/test_register.py
+++ b/tests/handlers/test_register.py
@@ -40,6 +40,7 @@ class RegistrationTestCase(unittest.TestCase):
         self.mock_distributor.declare("registered_user")
         self.mock_captcha_client = Mock()
         self.hs = yield setup_test_homeserver(
+            self.addCleanup,
             handlers=None,
             http_client=None,
             expire_access_token=True,
diff --git a/tests/handlers/test_typing.py b/tests/handlers/test_typing.py
index becfa77bfa..ad58073a14 100644
--- a/tests/handlers/test_typing.py
+++ b/tests/handlers/test_typing.py
@@ -67,6 +67,7 @@ class TypingNotificationsTestCase(unittest.TestCase):
         self.state_handler = Mock()
 
         hs = yield setup_test_homeserver(
+            self.addCleanup,
             "test",
             auth=self.auth,
             clock=self.clock,
diff --git a/tests/replication/slave/storage/_base.py b/tests/replication/slave/storage/_base.py
index c23b6e2cfd..65df116efc 100644
--- a/tests/replication/slave/storage/_base.py
+++ b/tests/replication/slave/storage/_base.py
@@ -54,6 +54,7 @@ class BaseSlavedStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
         self.hs = yield setup_test_homeserver(
+            self.addCleanup,
             "blue",
             http_client=None,
             federation_client=Mock(),
diff --git a/tests/rest/client/v1/test_admin.py b/tests/rest/client/v1/test_admin.py
index 67d9ab94e2..1a553fa3f9 100644
--- a/tests/rest/client/v1/test_admin.py
+++ b/tests/rest/client/v1/test_admin.py
@@ -51,7 +51,7 @@ class UserRegisterTestCase(unittest.TestCase):
         self.secrets = Mock()
 
         self.hs = setup_test_homeserver(
-            http_client=None, clock=self.hs_clock, reactor=self.clock
+            self.addCleanup, http_client=None, clock=self.hs_clock, reactor=self.clock
         )
 
         self.hs.config.registration_shared_secret = u"shared"
diff --git a/tests/rest/client/v1/test_events.py b/tests/rest/client/v1/test_events.py
index 0316b74fa1..956f7fc4c4 100644
--- a/tests/rest/client/v1/test_events.py
+++ b/tests/rest/client/v1/test_events.py
@@ -41,6 +41,7 @@ class EventStreamPermissionsTestCase(RestTestCase):
         self.mock_resource = MockHttpResource(prefix=PATH_PREFIX)
 
         hs = yield setup_test_homeserver(
+            self.addCleanup,
             http_client=None,
             federation_client=Mock(),
             ratelimiter=NonCallableMock(spec_set=["send_message"]),
diff --git a/tests/rest/client/v1/test_profile.py b/tests/rest/client/v1/test_profile.py
index 9ba0ffc19f..1eab9c3bdb 100644
--- a/tests/rest/client/v1/test_profile.py
+++ b/tests/rest/client/v1/test_profile.py
@@ -46,6 +46,7 @@ class ProfileTestCase(unittest.TestCase):
         )
 
         hs = yield setup_test_homeserver(
+            self.addCleanup,
             "test",
             http_client=None,
             resource_for_client=self.mock_resource,
diff --git a/tests/rest/client/v1/test_register.py b/tests/rest/client/v1/test_register.py
index 6f15d69ecd..4be88b8a39 100644
--- a/tests/rest/client/v1/test_register.py
+++ b/tests/rest/client/v1/test_register.py
@@ -49,7 +49,7 @@ class CreateUserServletTestCase(unittest.TestCase):
         self.hs_clock = Clock(self.clock)
 
         self.hs = self.hs = setup_test_homeserver(
-            http_client=None, clock=self.hs_clock, reactor=self.clock
+            self.addCleanup, http_client=None, clock=self.hs_clock, reactor=self.clock
         )
         self.hs.get_datastore = Mock(return_value=self.datastore)
         self.hs.get_handlers = Mock(return_value=handlers)
diff --git a/tests/rest/client/v1/test_rooms.py b/tests/rest/client/v1/test_rooms.py
index 00fc796787..9fe0760496 100644
--- a/tests/rest/client/v1/test_rooms.py
+++ b/tests/rest/client/v1/test_rooms.py
@@ -50,6 +50,7 @@ class RoomBase(unittest.TestCase):
         self.hs_clock = Clock(self.clock)
 
         self.hs = setup_test_homeserver(
+            self.addCleanup,
             "red",
             http_client=None,
             clock=self.hs_clock,
diff --git a/tests/rest/client/v1/test_typing.py b/tests/rest/client/v1/test_typing.py
index 7f1a435e7b..677265edf6 100644
--- a/tests/rest/client/v1/test_typing.py
+++ b/tests/rest/client/v1/test_typing.py
@@ -44,6 +44,7 @@ class RoomTypingTestCase(RestTestCase):
         self.auth_user_id = self.user_id
 
         hs = yield setup_test_homeserver(
+            self.addCleanup,
             "red",
             clock=self.clock,
             http_client=None,
diff --git a/tests/rest/client/v2_alpha/test_filter.py b/tests/rest/client/v2_alpha/test_filter.py
index de33b10a5f..8260c130f8 100644
--- a/tests/rest/client/v2_alpha/test_filter.py
+++ b/tests/rest/client/v2_alpha/test_filter.py
@@ -43,7 +43,7 @@ class FilterTestCase(unittest.TestCase):
         self.hs_clock = Clock(self.clock)
 
         self.hs = setup_test_homeserver(
-            http_client=None, clock=self.hs_clock, reactor=self.clock
+            self.addCleanup, http_client=None, clock=self.hs_clock, reactor=self.clock
         )
 
         self.auth = self.hs.get_auth()
diff --git a/tests/rest/client/v2_alpha/test_register.py b/tests/rest/client/v2_alpha/test_register.py
index 9487babac3..b72bd0fb7f 100644
--- a/tests/rest/client/v2_alpha/test_register.py
+++ b/tests/rest/client/v2_alpha/test_register.py
@@ -47,7 +47,7 @@ class RegisterRestServletTestCase(unittest.TestCase):
             login_handler=self.login_handler,
         )
         self.hs = setup_test_homeserver(
-            http_client=None, clock=self.hs_clock, reactor=self.clock
+            self.addCleanup, http_client=None, clock=self.hs_clock, reactor=self.clock
         )
         self.hs.get_auth = Mock(return_value=self.auth)
         self.hs.get_handlers = Mock(return_value=self.handlers)
diff --git a/tests/rest/client/v2_alpha/test_sync.py b/tests/rest/client/v2_alpha/test_sync.py
index bafc0d1df0..2e1d06c509 100644
--- a/tests/rest/client/v2_alpha/test_sync.py
+++ b/tests/rest/client/v2_alpha/test_sync.py
@@ -40,7 +40,7 @@ class FilterTestCase(unittest.TestCase):
         self.hs_clock = Clock(self.clock)
 
         self.hs = setup_test_homeserver(
-            http_client=None, clock=self.hs_clock, reactor=self.clock
+            self.addCleanup, http_client=None, clock=self.hs_clock, reactor=self.clock
         )
 
         self.auth = self.hs.get_auth()
diff --git a/tests/server.py b/tests/server.py
index 05708be8b9..beb24cf032 100644
--- a/tests/server.py
+++ b/tests/server.py
@@ -147,12 +147,15 @@ class ThreadedMemoryReactorClock(MemoryReactorClock):
         return d
 
 
-def setup_test_homeserver(*args, **kwargs):
+def setup_test_homeserver(cleanup_func, *args, **kwargs):
     """
     Set up a synchronous test server, driven by the reactor used by
     the homeserver.
     """
-    d = _sth(*args, **kwargs).result
+    d = _sth(cleanup_func, *args, **kwargs).result
+
+    if isinstance(d, Failure):
+        d.raiseException()
 
     # Make the thread pool synchronous.
     clock = d.get_clock()
@@ -189,6 +192,9 @@ def setup_test_homeserver(*args, **kwargs):
         def start(self):
             pass
 
+        def stop(self):
+            pass
+
         def callInThreadWithCallback(self, onResult, function, *args, **kwargs):
             def _(res):
                 if isinstance(res, Failure):
diff --git a/tests/storage/test_appservice.py b/tests/storage/test_appservice.py
index fbb25a8844..c893990454 100644
--- a/tests/storage/test_appservice.py
+++ b/tests/storage/test_appservice.py
@@ -43,7 +43,10 @@ class ApplicationServiceStoreTestCase(unittest.TestCase):
             password_providers=[],
         )
         hs = yield setup_test_homeserver(
-            config=config, federation_sender=Mock(), federation_client=Mock()
+            self.addCleanup,
+            config=config,
+            federation_sender=Mock(),
+            federation_client=Mock(),
         )
 
         self.as_token = "token1"
@@ -108,7 +111,10 @@ class ApplicationServiceTransactionStoreTestCase(unittest.TestCase):
             password_providers=[],
         )
         hs = yield setup_test_homeserver(
-            config=config, federation_sender=Mock(), federation_client=Mock()
+            self.addCleanup,
+            config=config,
+            federation_sender=Mock(),
+            federation_client=Mock(),
         )
         self.db_pool = hs.get_db_pool()
 
@@ -392,6 +398,7 @@ class ApplicationServiceStoreConfigTestCase(unittest.TestCase):
             app_service_config_files=[f1, f2], event_cache_size=1, password_providers=[]
         )
         hs = yield setup_test_homeserver(
+            self.addCleanup,
             config=config,
             datastore=Mock(),
             federation_sender=Mock(),
@@ -409,6 +416,7 @@ class ApplicationServiceStoreConfigTestCase(unittest.TestCase):
             app_service_config_files=[f1, f2], event_cache_size=1, password_providers=[]
         )
         hs = yield setup_test_homeserver(
+            self.addCleanup,
             config=config,
             datastore=Mock(),
             federation_sender=Mock(),
@@ -432,6 +440,7 @@ class ApplicationServiceStoreConfigTestCase(unittest.TestCase):
             app_service_config_files=[f1, f2], event_cache_size=1, password_providers=[]
         )
         hs = yield setup_test_homeserver(
+            self.addCleanup,
             config=config,
             datastore=Mock(),
             federation_sender=Mock(),
diff --git a/tests/storage/test_background_update.py b/tests/storage/test_background_update.py
index b4f6baf441..81403727c5 100644
--- a/tests/storage/test_background_update.py
+++ b/tests/storage/test_background_update.py
@@ -9,7 +9,9 @@ from tests.utils import setup_test_homeserver
 class BackgroundUpdateTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield setup_test_homeserver()  # type: synapse.server.HomeServer
+        hs = yield setup_test_homeserver(
+            self.addCleanup
+        )  # type: synapse.server.HomeServer
         self.store = hs.get_datastore()
         self.clock = hs.get_clock()
 
diff --git a/tests/storage/test_client_ips.py b/tests/storage/test_client_ips.py
index ea00bbe84c..fa60d949ba 100644
--- a/tests/storage/test_client_ips.py
+++ b/tests/storage/test_client_ips.py
@@ -28,7 +28,7 @@ class ClientIpStoreTestCase(tests.unittest.TestCase):
 
     @defer.inlineCallbacks
     def setUp(self):
-        self.hs = yield tests.utils.setup_test_homeserver()
+        self.hs = yield tests.utils.setup_test_homeserver(self.addCleanup)
         self.store = self.hs.get_datastore()
         self.clock = self.hs.get_clock()
 
diff --git a/tests/storage/test_devices.py b/tests/storage/test_devices.py
index 63bc42d9e0..aef4dfaf57 100644
--- a/tests/storage/test_devices.py
+++ b/tests/storage/test_devices.py
@@ -28,7 +28,7 @@ class DeviceStoreTestCase(tests.unittest.TestCase):
 
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield tests.utils.setup_test_homeserver()
+        hs = yield tests.utils.setup_test_homeserver(self.addCleanup)
 
         self.store = hs.get_datastore()
 
diff --git a/tests/storage/test_directory.py b/tests/storage/test_directory.py
index 9a8ba2fcfe..b4510c1c8d 100644
--- a/tests/storage/test_directory.py
+++ b/tests/storage/test_directory.py
@@ -26,7 +26,7 @@ from tests.utils import setup_test_homeserver
 class DirectoryStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield setup_test_homeserver()
+        hs = yield setup_test_homeserver(self.addCleanup)
 
         self.store = DirectoryStore(None, hs)
 
diff --git a/tests/storage/test_end_to_end_keys.py b/tests/storage/test_end_to_end_keys.py
index d45c775c2d..8f0aaece40 100644
--- a/tests/storage/test_end_to_end_keys.py
+++ b/tests/storage/test_end_to_end_keys.py
@@ -26,8 +26,7 @@ class EndToEndKeyStoreTestCase(tests.unittest.TestCase):
 
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield tests.utils.setup_test_homeserver()
-
+        hs = yield tests.utils.setup_test_homeserver(self.addCleanup)
         self.store = hs.get_datastore()
 
     @defer.inlineCallbacks
diff --git a/tests/storage/test_event_federation.py b/tests/storage/test_event_federation.py
index 66eb119581..2fdf34fdf6 100644
--- a/tests/storage/test_event_federation.py
+++ b/tests/storage/test_event_federation.py
@@ -22,7 +22,7 @@ import tests.utils
 class EventFederationWorkerStoreTestCase(tests.unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield tests.utils.setup_test_homeserver()
+        hs = yield tests.utils.setup_test_homeserver(self.addCleanup)
         self.store = hs.get_datastore()
 
     @defer.inlineCallbacks
diff --git a/tests/storage/test_event_push_actions.py b/tests/storage/test_event_push_actions.py
index 5e87b4530d..b114c6fb1d 100644
--- a/tests/storage/test_event_push_actions.py
+++ b/tests/storage/test_event_push_actions.py
@@ -33,7 +33,7 @@ HIGHLIGHT = [
 class EventPushActionsStoreTestCase(tests.unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield tests.utils.setup_test_homeserver()
+        hs = yield tests.utils.setup_test_homeserver(self.addCleanup)
         self.store = hs.get_datastore()
 
     @defer.inlineCallbacks
diff --git a/tests/storage/test_keys.py b/tests/storage/test_keys.py
index ad0a55b324..47f4a8ceac 100644
--- a/tests/storage/test_keys.py
+++ b/tests/storage/test_keys.py
@@ -28,7 +28,7 @@ class KeyStoreTestCase(tests.unittest.TestCase):
 
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield tests.utils.setup_test_homeserver()
+        hs = yield tests.utils.setup_test_homeserver(self.addCleanup)
         self.store = hs.get_datastore()
 
     @defer.inlineCallbacks
diff --git a/tests/storage/test_monthly_active_users.py b/tests/storage/test_monthly_active_users.py
index 22b1072d9f..0a2c859f26 100644
--- a/tests/storage/test_monthly_active_users.py
+++ b/tests/storage/test_monthly_active_users.py
@@ -28,7 +28,7 @@ class MonthlyActiveUsersTestCase(tests.unittest.TestCase):
 
     @defer.inlineCallbacks
     def setUp(self):
-        self.hs = yield setup_test_homeserver()
+        self.hs = yield setup_test_homeserver(self.addCleanup)
         self.store = self.hs.get_datastore()
 
     @defer.inlineCallbacks
diff --git a/tests/storage/test_presence.py b/tests/storage/test_presence.py
index 12c540dfab..b5b58ff660 100644
--- a/tests/storage/test_presence.py
+++ b/tests/storage/test_presence.py
@@ -26,7 +26,7 @@ from tests.utils import MockClock, setup_test_homeserver
 class PresenceStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield setup_test_homeserver(clock=MockClock())
+        hs = yield setup_test_homeserver(self.addCleanup, clock=MockClock())
 
         self.store = PresenceStore(None, hs)
 
diff --git a/tests/storage/test_profile.py b/tests/storage/test_profile.py
index 5acbc8be0c..a1f6618bf9 100644
--- a/tests/storage/test_profile.py
+++ b/tests/storage/test_profile.py
@@ -26,7 +26,7 @@ from tests.utils import setup_test_homeserver
 class ProfileStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield setup_test_homeserver()
+        hs = yield setup_test_homeserver(self.addCleanup)
 
         self.store = ProfileStore(None, hs)
 
diff --git a/tests/storage/test_redaction.py b/tests/storage/test_redaction.py
index 85ce61e841..c4e9fb72bf 100644
--- a/tests/storage/test_redaction.py
+++ b/tests/storage/test_redaction.py
@@ -29,7 +29,7 @@ class RedactionTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
         hs = yield setup_test_homeserver(
-            resource_for_federation=Mock(), http_client=None
+            self.addCleanup, resource_for_federation=Mock(), http_client=None
         )
 
         self.store = hs.get_datastore()
diff --git a/tests/storage/test_registration.py b/tests/storage/test_registration.py
index bd96896bb3..4eda122edc 100644
--- a/tests/storage/test_registration.py
+++ b/tests/storage/test_registration.py
@@ -23,7 +23,7 @@ from tests.utils import setup_test_homeserver
 class RegistrationStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield setup_test_homeserver()
+        hs = yield setup_test_homeserver(self.addCleanup)
         self.db_pool = hs.get_db_pool()
 
         self.store = hs.get_datastore()
diff --git a/tests/storage/test_room.py b/tests/storage/test_room.py
index 84d49b55c1..a1ea23b068 100644
--- a/tests/storage/test_room.py
+++ b/tests/storage/test_room.py
@@ -26,7 +26,7 @@ from tests.utils import setup_test_homeserver
 class RoomStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield setup_test_homeserver()
+        hs = yield setup_test_homeserver(self.addCleanup)
 
         # We can't test RoomStore on its own without the DirectoryStore, for
         # management of the 'room_aliases' table
@@ -57,7 +57,7 @@ class RoomStoreTestCase(unittest.TestCase):
 class RoomEventsStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        hs = setup_test_homeserver()
+        hs = setup_test_homeserver(self.addCleanup)
 
         # Room events need the full datastore, for persist_event() and
         # get_room_state()
diff --git a/tests/storage/test_roommember.py b/tests/storage/test_roommember.py
index 0d9908926a..c83ef60062 100644
--- a/tests/storage/test_roommember.py
+++ b/tests/storage/test_roommember.py
@@ -29,7 +29,7 @@ class RoomMemberStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
         hs = yield setup_test_homeserver(
-            resource_for_federation=Mock(), http_client=None
+            self.addCleanup, resource_for_federation=Mock(), http_client=None
         )
         # We can't test the RoomMemberStore on its own without the other event
         # storage logic
diff --git a/tests/storage/test_state.py b/tests/storage/test_state.py
index ed5b41644a..6168c46248 100644
--- a/tests/storage/test_state.py
+++ b/tests/storage/test_state.py
@@ -33,7 +33,7 @@ class StateStoreTestCase(tests.unittest.TestCase):
 
     @defer.inlineCallbacks
     def setUp(self):
-        hs = yield tests.utils.setup_test_homeserver()
+        hs = yield tests.utils.setup_test_homeserver(self.addCleanup)
 
         self.store = hs.get_datastore()
         self.event_builder_factory = hs.get_event_builder_factory()
diff --git a/tests/storage/test_user_directory.py b/tests/storage/test_user_directory.py
index 7a273eab48..b46e0ea7e2 100644
--- a/tests/storage/test_user_directory.py
+++ b/tests/storage/test_user_directory.py
@@ -29,7 +29,7 @@ BOBBY = "@bobby:a"
 class UserDirectoryStoreTestCase(unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        self.hs = yield setup_test_homeserver()
+        self.hs = yield setup_test_homeserver(self.addCleanup)
         self.store = UserDirectoryStore(None, self.hs)
 
         # alice and bob are both in !room_id. bobby is not but shares
diff --git a/tests/test_federation.py b/tests/test_federation.py
index f40ff29b52..2540604fcc 100644
--- a/tests/test_federation.py
+++ b/tests/test_federation.py
@@ -18,7 +18,10 @@ class MessageAcceptTests(unittest.TestCase):
         self.reactor = ThreadedMemoryReactorClock()
         self.hs_clock = Clock(self.reactor)
         self.homeserver = setup_test_homeserver(
-            http_client=self.http_client, clock=self.hs_clock, reactor=self.reactor
+            self.addCleanup,
+            http_client=self.http_client,
+            clock=self.hs_clock,
+            reactor=self.reactor,
         )
 
         user_id = UserID("us", "test")
diff --git a/tests/test_server.py b/tests/test_server.py
index fc396226ea..895e490406 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -16,7 +16,7 @@ class JsonResourceTests(unittest.TestCase):
         self.reactor = MemoryReactorClock()
         self.hs_clock = Clock(self.reactor)
         self.homeserver = setup_test_homeserver(
-            http_client=None, clock=self.hs_clock, reactor=self.reactor
+            self.addCleanup, http_client=None, clock=self.hs_clock, reactor=self.reactor
         )
 
     def test_handler_for_request(self):
diff --git a/tests/test_visibility.py b/tests/test_visibility.py
index 8643d63125..45a78338d6 100644
--- a/tests/test_visibility.py
+++ b/tests/test_visibility.py
@@ -31,7 +31,7 @@ TEST_ROOM_ID = "!TEST:ROOM"
 class FilterEventsForServerTestCase(tests.unittest.TestCase):
     @defer.inlineCallbacks
     def setUp(self):
-        self.hs = yield setup_test_homeserver()
+        self.hs = yield setup_test_homeserver(self.addCleanup)
         self.event_creation_handler = self.hs.get_event_creation_handler()
         self.event_builder_factory = self.hs.get_event_builder_factory()
         self.store = self.hs.get_datastore()
diff --git a/tests/utils.py b/tests/utils.py
index 8668b5478f..90378326f8 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -13,7 +13,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import atexit
 import hashlib
+import os
+import uuid
 from inspect import getcallargs
 
 from mock import Mock, patch
@@ -27,23 +30,80 @@ from synapse.http.server import HttpServer
 from synapse.server import HomeServer
 from synapse.storage import PostgresEngine
 from synapse.storage.engines import create_engine
-from synapse.storage.prepare_database import prepare_database
+from synapse.storage.prepare_database import (
+    _get_or_create_schema_state,
+    _setup_new_database,
+    prepare_database,
+)
 from synapse.util.logcontext import LoggingContext
 from synapse.util.ratelimitutils import FederationRateLimiter
 
 # set this to True to run the tests against postgres instead of sqlite.
-# It requires you to have a local postgres database called synapse_test, within
-# which ALL TABLES WILL BE DROPPED
-USE_POSTGRES_FOR_TESTS = False
+USE_POSTGRES_FOR_TESTS = os.environ.get("SYNAPSE_POSTGRES", False)
+POSTGRES_USER = os.environ.get("SYNAPSE_POSTGRES_USER", "postgres")
+POSTGRES_BASE_DB = "_synapse_unit_tests_base_%s" % (os.getpid(),)
+
+
+def setupdb():
+
+    # If we're using PostgreSQL, set up the db once
+    if USE_POSTGRES_FOR_TESTS:
+        pgconfig = {
+            "name": "psycopg2",
+            "args": {
+                "database": POSTGRES_BASE_DB,
+                "user": POSTGRES_USER,
+                "cp_min": 1,
+                "cp_max": 5,
+            },
+        }
+        config = Mock()
+        config.password_providers = []
+        config.database_config = pgconfig
+        db_engine = create_engine(pgconfig)
+        db_conn = db_engine.module.connect(user=POSTGRES_USER)
+        db_conn.autocommit = True
+        cur = db_conn.cursor()
+        cur.execute("DROP DATABASE IF EXISTS %s;" % (POSTGRES_BASE_DB,))
+        cur.execute("CREATE DATABASE %s;" % (POSTGRES_BASE_DB,))
+        cur.close()
+        db_conn.close()
+
+        # Set up in the db
+        db_conn = db_engine.module.connect(
+            database=POSTGRES_BASE_DB, user=POSTGRES_USER
+        )
+        cur = db_conn.cursor()
+        _get_or_create_schema_state(cur, db_engine)
+        _setup_new_database(cur, db_engine)
+        db_conn.commit()
+        cur.close()
+        db_conn.close()
+
+        def _cleanup():
+            db_conn = db_engine.module.connect(user=POSTGRES_USER)
+            db_conn.autocommit = True
+            cur = db_conn.cursor()
+            cur.execute("DROP DATABASE IF EXISTS %s;" % (POSTGRES_BASE_DB,))
+            cur.close()
+            db_conn.close()
+
+        atexit.register(_cleanup)
 
 
 @defer.inlineCallbacks
 def setup_test_homeserver(
-    name="test", datastore=None, config=None, reactor=None, **kargs
+    cleanup_func, name="test", datastore=None, config=None, reactor=None, **kargs
 ):
-    """Setup a homeserver suitable for running tests against. Keyword arguments
-    are passed to the Homeserver constructor. If no datastore is supplied a
-    datastore backed by an in-memory sqlite db will be given to the HS.
+    """
+    Setup a homeserver suitable for running tests against.  Keyword arguments
+    are passed to the Homeserver constructor.
+
+    If no datastore is supplied, one is created and given to the homeserver.
+
+    Args:
+        cleanup_func : The function used to register a cleanup routine for
+                       after the test.
     """
     if reactor is None:
         from twisted.internet import reactor
@@ -95,9 +155,11 @@ def setup_test_homeserver(
         kargs["clock"] = MockClock()
 
     if USE_POSTGRES_FOR_TESTS:
+        test_db = "synapse_test_%s" % uuid.uuid4().hex
+
         config.database_config = {
             "name": "psycopg2",
-            "args": {"database": "synapse_test", "cp_min": 1, "cp_max": 5},
+            "args": {"database": test_db, "cp_min": 1, "cp_max": 5},
         }
     else:
         config.database_config = {
@@ -107,6 +169,21 @@ def setup_test_homeserver(
 
     db_engine = create_engine(config.database_config)
 
+    # Create the database before we actually try and connect to it, based off
+    # the template database we generate in setupdb()
+    if datastore is None and isinstance(db_engine, PostgresEngine):
+        db_conn = db_engine.module.connect(
+            database=POSTGRES_BASE_DB, user=POSTGRES_USER
+        )
+        db_conn.autocommit = True
+        cur = db_conn.cursor()
+        cur.execute("DROP DATABASE IF EXISTS %s;" % (test_db,))
+        cur.execute(
+            "CREATE DATABASE %s WITH TEMPLATE %s;" % (test_db, POSTGRES_BASE_DB)
+        )
+        cur.close()
+        db_conn.close()
+
     # we need to configure the connection pool to run the on_new_connection
     # function, so that we can test code that uses custom sqlite functions
     # (like rank).
@@ -125,15 +202,35 @@ def setup_test_homeserver(
             reactor=reactor,
             **kargs
         )
-        db_conn = hs.get_db_conn()
-        # make sure that the database is empty
-        if isinstance(db_engine, PostgresEngine):
-            cur = db_conn.cursor()
-            cur.execute("SELECT tablename FROM pg_tables where schemaname='public'")
-            rows = cur.fetchall()
-            for r in rows:
-                cur.execute("DROP TABLE %s CASCADE" % r[0])
-        yield prepare_database(db_conn, db_engine, config)
+
+        # Prepare the DB on SQLite -- PostgreSQL is a copy of an already up to
+        # date db
+        if not isinstance(db_engine, PostgresEngine):
+            db_conn = hs.get_db_conn()
+            yield prepare_database(db_conn, db_engine, config)
+            db_conn.commit()
+            db_conn.close()
+
+        else:
+            # We need to do cleanup on PostgreSQL
+            def cleanup():
+                # Close all the db pools
+                hs.get_db_pool().close()
+
+                # Drop the test database
+                db_conn = db_engine.module.connect(
+                    database=POSTGRES_BASE_DB, user=POSTGRES_USER
+                )
+                db_conn.autocommit = True
+                cur = db_conn.cursor()
+                cur.execute("DROP DATABASE IF EXISTS %s;" % (test_db,))
+                db_conn.commit()
+                cur.close()
+                db_conn.close()
+
+            # Register the cleanup hook
+            cleanup_func(cleanup)
+
         hs.setup()
     else:
         hs = HomeServer(