Merge pull request #8861 from matrix-org/rav/remove_unused_mocks

Remove some unnecessary mocking from the unit tests

changelog.d/8861.misc

@@ -0,0 +1 @@
+Remove some unnecessary stubbing from unit tests.

tests/api/test_filtering.py

@@ -16,8 +16,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from mock import Mock
-
 import jsonschema
 
 from twisted.internet import defer
@@ -28,7 +26,7 @@ from synapse.api.filtering import Filter
 from synapse.events import make_event_from_dict
 
 from tests import unittest
-from tests.utils import DeferredMockCallable, MockHttpResource, setup_test_homeserver
+from tests.utils import setup_test_homeserver
 
 user_localpart = "test_user"
 
@@ -42,21 +40,9 @@ def MockEvent(**kwargs):
 
 
 class FilteringTestCase(unittest.TestCase):
-    @defer.inlineCallbacks
     def setUp(self):
-        self.mock_federation_resource = MockHttpResource()
-
-        self.mock_http_client = Mock(spec=[])
-        self.mock_http_client.put_json = DeferredMockCallable()
-
-        hs = yield setup_test_homeserver(
-            self.addCleanup,
-            federation_http_client=self.mock_http_client,
-            keyring=Mock(),
-        )
-
+        hs = setup_test_homeserver(self.addCleanup)
         self.filtering = hs.get_filtering()
-
         self.datastore = hs.get_datastore()
 
     def test_errors_on_invalid_filters(self):

tests/handlers/test_directory.py

@@ -42,8 +42,6 @@ class DirectoryTestCase(unittest.HomeserverTestCase):
         self.mock_registry.register_query_handler = register_query_handler
 
         hs = self.setup_test_homeserver(
-            federation_http_client=None,
-            resource_for_federation=Mock(),
             federation_client=self.mock_federation,
             federation_registry=self.mock_registry,
         )

tests/handlers/test_profile.py

@@ -44,8 +44,6 @@ class ProfileTestCase(unittest.TestCase):
 
         hs = yield setup_test_homeserver(
             self.addCleanup,
-            federation_http_client=None,
-            resource_for_federation=Mock(),
             federation_client=self.mock_federation,
             federation_server=Mock(),
             federation_registry=self.mock_registry,

tests/storage/test_redaction.py

@@ -14,9 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-
-from mock import Mock
-
 from canonicaljson import json
 
 from twisted.internet import defer
@@ -30,12 +27,10 @@ from tests.utils import create_room
 
 
 class RedactionTestCase(unittest.HomeserverTestCase):
-    def make_homeserver(self, reactor, clock):
-        config = self.default_config()
+    def default_config(self):
+        config = super().default_config()
         config["redaction_retention_period"] = "30d"
-        return self.setup_test_homeserver(
-            resource_for_federation=Mock(), federation_http_client=None, config=config
-        )
+        return config
 
     def prepare(self, reactor, clock, hs):
         self.store = hs.get_datastore()

tests/storage/test_roommember.py

@@ -14,8 +14,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from unittest.mock import Mock
-
 from synapse.api.constants import Membership
 from synapse.rest.admin import register_servlets_for_client_rest_resource
 from synapse.rest.client.v1 import login, room
@@ -34,12 +32,6 @@ class RoomMemberStoreTestCase(unittest.HomeserverTestCase):
         room.register_servlets,
     ]
 
-    def make_homeserver(self, reactor, clock):
-        hs = self.setup_test_homeserver(
-            resource_for_federation=Mock(), federation_http_client=None
-        )
-        return hs
-
     def prepare(self, reactor, clock, hs: TestHomeServer):
 
         # We can't test the RoomMemberStore on its own without the other event

tests/utils.py

@@ -20,13 +20,12 @@ import os
 import time
 import uuid
 import warnings
-from inspect import getcallargs
 from typing import Type
 from urllib import parse as urlparse
 
 from mock import Mock, patch
 
-from twisted.internet import defer, reactor
+from twisted.internet import defer
 
 from synapse.api.constants import EventTypes
 from synapse.api.errors import CodeMessageException, cs_error
@@ -34,7 +33,6 @@ from synapse.api.room_versions import RoomVersions
 from synapse.config.database import DatabaseConnectionConfig
 from synapse.config.homeserver import HomeServerConfig
 from synapse.config.server import DEFAULT_ROOM_VERSION
-from synapse.federation.transport import server as federation_server
 from synapse.http.server import HttpServer
 from synapse.logging.context import current_context, set_current_context
 from synapse.server import HomeServer
@@ -42,7 +40,6 @@ from synapse.storage import DataStore
 from synapse.storage.database import LoggingDatabaseConnection
 from synapse.storage.engines import PostgresEngine, create_engine
 from synapse.storage.prepare_database import prepare_database
-from synapse.util.ratelimitutils import FederationRateLimiter
 
 # set this to True to run the tests against postgres instead of sqlite.
 #
@@ -342,32 +339,9 @@ def setup_test_homeserver(
 
     hs.get_auth_handler().validate_hash = validate_hash
 
-    fed = kwargs.get("resource_for_federation", None)
-    if fed:
-        register_federation_servlets(hs, fed)
-
     return hs
 
 
-def register_federation_servlets(hs, resource):
-    federation_server.register_servlets(
-        hs,
-        resource=resource,
-        authenticator=federation_server.Authenticator(hs),
-        ratelimiter=FederationRateLimiter(
-            hs.get_clock(), config=hs.config.rc_federation
-        ),
-    )
-
-
-def get_mock_call_args(pattern_func, mock_func):
-    """ Return the arguments the mock function was called with interpreted
-    by the pattern functions argument list.
-    """
-    invoked_args, invoked_kargs = mock_func.call_args
-    return getcallargs(pattern_func, *invoked_args, **invoked_kargs)
-
-
 def mock_getRawHeaders(headers=None):
     headers = headers if headers is not None else {}
 
@@ -553,86 +527,6 @@ class MockClock:
         return d
 
 
-def _format_call(args, kwargs):
-    return ", ".join(
-        ["%r" % (a) for a in args] + ["%s=%r" % (k, v) for k, v in kwargs.items()]
-    )
-
-
-class DeferredMockCallable:
-    """A callable instance that stores a set of pending call expectations and
-    return values for them. It allows a unit test to assert that the given set
-    of function calls are eventually made, by awaiting on them to be called.
-    """
-
-    def __init__(self):
-        self.expectations = []
-        self.calls = []
-
-    def __call__(self, *args, **kwargs):
-        self.calls.append((args, kwargs))
-
-        if not self.expectations:
-            raise ValueError(
-                "%r has no pending calls to handle call(%s)"
-                % (self, _format_call(args, kwargs))
-            )
-
-        for (call, result, d) in self.expectations:
-            if args == call[1] and kwargs == call[2]:
-                d.callback(None)
-                return result
-
-        failure = AssertionError(
-            "Was not expecting call(%s)" % (_format_call(args, kwargs))
-        )
-
-        for _, _, d in self.expectations:
-            try:
-                d.errback(failure)
-            except Exception:
-                pass
-
-        raise failure
-
-    def expect_call_and_return(self, call, result):
-        self.expectations.append((call, result, defer.Deferred()))
-
-    @defer.inlineCallbacks
-    def await_calls(self, timeout=1000):
-        deferred = defer.DeferredList(
-            [d for _, _, d in self.expectations], fireOnOneErrback=True
-        )
-
-        timer = reactor.callLater(
-            timeout / 1000,
-            deferred.errback,
-            AssertionError(
-                "%d pending calls left: %s"
-                % (
-                    len([e for e in self.expectations if not e[2].called]),
-                    [e for e in self.expectations if not e[2].called],
-                )
-            ),
-        )
-
-        yield deferred
-
-        timer.cancel()
-
-        self.calls = []
-
-    def assert_had_no_calls(self):
-        if self.calls:
-            calls = self.calls
-            self.calls = []
-
-            raise AssertionError(
-                "Expected not to received any calls, got:\n"
-                + "\n".join(["call(%s)" % _format_call(c[0], c[1]) for c in calls])
-            )
-
-
 async def create_room(hs, room_id: str, creator_id: str):
     """Creates and persist a creation event for the given room
     """