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-rw-r--r--tests/rest/client/test_capabilities.py69
-rw-r--r--tests/rest/client/test_register.py2
-rw-r--r--tests/rest/client/test_relations.py227
-rw-r--r--tests/rest/client/test_room_batch.py2
-rw-r--r--tests/rest/client/test_rooms.py119
-rw-r--r--tests/rest/client/test_sendtodevice.py40
-rw-r--r--tests/rest/client/test_sync.py57
-rw-r--r--tests/rest/client/test_third_party_rules.py6
-rw-r--r--tests/rest/client/utils.py31
9 files changed, 355 insertions, 198 deletions
diff --git a/tests/rest/client/test_capabilities.py b/tests/rest/client/test_capabilities.py
index 249808b031..989e801768 100644
--- a/tests/rest/client/test_capabilities.py
+++ b/tests/rest/client/test_capabilities.py
@@ -11,6 +11,8 @@
 # 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.
+from http import HTTPStatus
+
 import synapse.rest.admin
 from synapse.api.room_versions import KNOWN_ROOM_VERSIONS
 from synapse.rest.client import capabilities, login
@@ -28,7 +30,7 @@ class CapabilitiesTestCase(unittest.HomeserverTestCase):
     ]
 
     def make_homeserver(self, reactor, clock):
-        self.url = b"/_matrix/client/r0/capabilities"
+        self.url = b"/capabilities"
         hs = self.setup_test_homeserver()
         self.config = hs.config
         self.auth_handler = hs.get_auth_handler()
@@ -96,39 +98,20 @@ class CapabilitiesTestCase(unittest.HomeserverTestCase):
         self.assertEqual(channel.code, 200)
         self.assertFalse(capabilities["m.change_password"]["enabled"])
 
-    def test_get_change_users_attributes_capabilities_when_msc3283_disabled(self):
-        """Test that per default msc3283 is disabled server returns `m.change_password`."""
+    def test_get_change_users_attributes_capabilities(self):
+        """Test that server returns capabilities by default."""
         access_token = self.login(self.localpart, self.password)
 
         channel = self.make_request("GET", self.url, access_token=access_token)
         capabilities = channel.json_body["capabilities"]
 
-        self.assertEqual(channel.code, 200)
+        self.assertEqual(channel.code, HTTPStatus.OK)
         self.assertTrue(capabilities["m.change_password"]["enabled"])
-        self.assertNotIn("org.matrix.msc3283.set_displayname", capabilities)
-        self.assertNotIn("org.matrix.msc3283.set_avatar_url", capabilities)
-        self.assertNotIn("org.matrix.msc3283.3pid_changes", capabilities)
-
-    @override_config({"experimental_features": {"msc3283_enabled": True}})
-    def test_get_change_users_attributes_capabilities_when_msc3283_enabled(self):
-        """Test if msc3283 is enabled server returns capabilities."""
-        access_token = self.login(self.localpart, self.password)
-
-        channel = self.make_request("GET", self.url, access_token=access_token)
-        capabilities = channel.json_body["capabilities"]
+        self.assertTrue(capabilities["m.set_displayname"]["enabled"])
+        self.assertTrue(capabilities["m.set_avatar_url"]["enabled"])
+        self.assertTrue(capabilities["m.3pid_changes"]["enabled"])
 
-        self.assertEqual(channel.code, 200)
-        self.assertTrue(capabilities["m.change_password"]["enabled"])
-        self.assertTrue(capabilities["org.matrix.msc3283.set_displayname"]["enabled"])
-        self.assertTrue(capabilities["org.matrix.msc3283.set_avatar_url"]["enabled"])
-        self.assertTrue(capabilities["org.matrix.msc3283.3pid_changes"]["enabled"])
-
-    @override_config(
-        {
-            "enable_set_displayname": False,
-            "experimental_features": {"msc3283_enabled": True},
-        }
-    )
+    @override_config({"enable_set_displayname": False})
     def test_get_set_displayname_capabilities_displayname_disabled(self):
         """Test if set displayname is disabled that the server responds it."""
         access_token = self.login(self.localpart, self.password)
@@ -136,15 +119,10 @@ class CapabilitiesTestCase(unittest.HomeserverTestCase):
         channel = self.make_request("GET", self.url, access_token=access_token)
         capabilities = channel.json_body["capabilities"]
 
-        self.assertEqual(channel.code, 200)
-        self.assertFalse(capabilities["org.matrix.msc3283.set_displayname"]["enabled"])
-
-    @override_config(
-        {
-            "enable_set_avatar_url": False,
-            "experimental_features": {"msc3283_enabled": True},
-        }
-    )
+        self.assertEqual(channel.code, HTTPStatus.OK)
+        self.assertFalse(capabilities["m.set_displayname"]["enabled"])
+
+    @override_config({"enable_set_avatar_url": False})
     def test_get_set_avatar_url_capabilities_avatar_url_disabled(self):
         """Test if set avatar_url is disabled that the server responds it."""
         access_token = self.login(self.localpart, self.password)
@@ -152,24 +130,19 @@ class CapabilitiesTestCase(unittest.HomeserverTestCase):
         channel = self.make_request("GET", self.url, access_token=access_token)
         capabilities = channel.json_body["capabilities"]
 
-        self.assertEqual(channel.code, 200)
-        self.assertFalse(capabilities["org.matrix.msc3283.set_avatar_url"]["enabled"])
-
-    @override_config(
-        {
-            "enable_3pid_changes": False,
-            "experimental_features": {"msc3283_enabled": True},
-        }
-    )
-    def test_change_3pid_capabilities_3pid_disabled(self):
+        self.assertEqual(channel.code, HTTPStatus.OK)
+        self.assertFalse(capabilities["m.set_avatar_url"]["enabled"])
+
+    @override_config({"enable_3pid_changes": False})
+    def test_get_change_3pid_capabilities_3pid_disabled(self):
         """Test if change 3pid is disabled that the server responds it."""
         access_token = self.login(self.localpart, self.password)
 
         channel = self.make_request("GET", self.url, access_token=access_token)
         capabilities = channel.json_body["capabilities"]
 
-        self.assertEqual(channel.code, 200)
-        self.assertFalse(capabilities["org.matrix.msc3283.3pid_changes"]["enabled"])
+        self.assertEqual(channel.code, HTTPStatus.OK)
+        self.assertFalse(capabilities["m.3pid_changes"]["enabled"])
 
     @override_config({"experimental_features": {"msc3244_enabled": False}})
     def test_get_does_not_include_msc3244_fields_when_disabled(self):
diff --git a/tests/rest/client/test_register.py b/tests/rest/client/test_register.py
index 407dd32a73..0f1c47dcbb 100644
--- a/tests/rest/client/test_register.py
+++ b/tests/rest/client/test_register.py
@@ -1154,7 +1154,7 @@ class AccountValidityBackgroundJobTestCase(unittest.HomeserverTestCase):
 
 class RegistrationTokenValidityRestServletTestCase(unittest.HomeserverTestCase):
     servlets = [register.register_servlets]
-    url = "/_matrix/client/unstable/org.matrix.msc3231/register/org.matrix.msc3231.login.registration_token/validity"
+    url = "/_matrix/client/v1/register/m.login.registration_token/validity"
 
     def default_config(self):
         config = super().default_config()
diff --git a/tests/rest/client/test_relations.py b/tests/rest/client/test_relations.py
index 96ae7790bb..de80aca037 100644
--- a/tests/rest/client/test_relations.py
+++ b/tests/rest/client/test_relations.py
@@ -21,7 +21,8 @@ from unittest.mock import patch
 from synapse.api.constants import EventTypes, RelationTypes
 from synapse.rest import admin
 from synapse.rest.client import login, register, relations, room, sync
-from synapse.types import JsonDict
+from synapse.storage.relations import RelationPaginationToken
+from synapse.types import JsonDict, StreamToken
 
 from tests import unittest
 from tests.server import FakeChannel
@@ -168,24 +169,28 @@ class RelationsTestCase(unittest.HomeserverTestCase):
         """Tests that calling pagination API correctly the latest relations."""
         channel = self._send_relation(RelationTypes.ANNOTATION, "m.reaction", "a")
         self.assertEquals(200, channel.code, channel.json_body)
+        first_annotation_id = channel.json_body["event_id"]
 
         channel = self._send_relation(RelationTypes.ANNOTATION, "m.reaction", "b")
         self.assertEquals(200, channel.code, channel.json_body)
-        annotation_id = channel.json_body["event_id"]
+        second_annotation_id = channel.json_body["event_id"]
 
         channel = self.make_request(
             "GET",
-            "/_matrix/client/unstable/rooms/%s/relations/%s?limit=1"
-            % (self.room, self.parent_id),
+            f"/_matrix/client/unstable/rooms/{self.room}/relations/{self.parent_id}?limit=1",
             access_token=self.user_token,
         )
         self.assertEquals(200, channel.code, channel.json_body)
 
-        # We expect to get back a single pagination result, which is the full
-        # relation event we sent above.
+        # We expect to get back a single pagination result, which is the latest
+        # full relation event we sent above.
         self.assertEquals(len(channel.json_body["chunk"]), 1, channel.json_body)
         self.assert_dict(
-            {"event_id": annotation_id, "sender": self.user_id, "type": "m.reaction"},
+            {
+                "event_id": second_annotation_id,
+                "sender": self.user_id,
+                "type": "m.reaction",
+            },
             channel.json_body["chunk"][0],
         )
 
@@ -200,6 +205,36 @@ class RelationsTestCase(unittest.HomeserverTestCase):
             channel.json_body.get("next_batch"), str, channel.json_body
         )
 
+        # Request the relations again, but with a different direction.
+        channel = self.make_request(
+            "GET",
+            f"/_matrix/client/unstable/rooms/{self.room}/relations"
+            f"/{self.parent_id}?limit=1&org.matrix.msc3715.dir=f",
+            access_token=self.user_token,
+        )
+        self.assertEquals(200, channel.code, channel.json_body)
+
+        # We expect to get back a single pagination result, which is the earliest
+        # full relation event we sent above.
+        self.assertEquals(len(channel.json_body["chunk"]), 1, channel.json_body)
+        self.assert_dict(
+            {
+                "event_id": first_annotation_id,
+                "sender": self.user_id,
+                "type": "m.reaction",
+            },
+            channel.json_body["chunk"][0],
+        )
+
+    def _stream_token_to_relation_token(self, token: str) -> str:
+        """Convert a StreamToken into a legacy token (RelationPaginationToken)."""
+        room_key = self.get_success(StreamToken.from_string(self.store, token)).room_key
+        return self.get_success(
+            RelationPaginationToken(
+                topological=room_key.topological, stream=room_key.stream
+            ).to_string(self.store)
+        )
+
     def test_repeated_paginate_relations(self):
         """Test that if we paginate using a limit and tokens then we get the
         expected events.
@@ -213,7 +248,7 @@ class RelationsTestCase(unittest.HomeserverTestCase):
             self.assertEquals(200, channel.code, channel.json_body)
             expected_event_ids.append(channel.json_body["event_id"])
 
-        prev_token: Optional[str] = None
+        prev_token = ""
         found_event_ids: List[str] = []
         for _ in range(20):
             from_token = ""
@@ -222,8 +257,7 @@ class RelationsTestCase(unittest.HomeserverTestCase):
 
             channel = self.make_request(
                 "GET",
-                "/_matrix/client/unstable/rooms/%s/relations/%s?limit=1%s"
-                % (self.room, self.parent_id, from_token),
+                f"/_matrix/client/unstable/rooms/{self.room}/relations/{self.parent_id}?limit=1{from_token}",
                 access_token=self.user_token,
             )
             self.assertEquals(200, channel.code, channel.json_body)
@@ -241,6 +275,93 @@ class RelationsTestCase(unittest.HomeserverTestCase):
         found_event_ids.reverse()
         self.assertEquals(found_event_ids, expected_event_ids)
 
+        # Reset and try again, but convert the tokens to the legacy format.
+        prev_token = ""
+        found_event_ids = []
+        for _ in range(20):
+            from_token = ""
+            if prev_token:
+                from_token = "&from=" + self._stream_token_to_relation_token(prev_token)
+
+            channel = self.make_request(
+                "GET",
+                f"/_matrix/client/unstable/rooms/{self.room}/relations/{self.parent_id}?limit=1{from_token}",
+                access_token=self.user_token,
+            )
+            self.assertEquals(200, channel.code, channel.json_body)
+
+            found_event_ids.extend(e["event_id"] for e in channel.json_body["chunk"])
+            next_batch = channel.json_body.get("next_batch")
+
+            self.assertNotEquals(prev_token, next_batch)
+            prev_token = next_batch
+
+            if not prev_token:
+                break
+
+        # We paginated backwards, so reverse
+        found_event_ids.reverse()
+        self.assertEquals(found_event_ids, expected_event_ids)
+
+    def test_pagination_from_sync_and_messages(self):
+        """Pagination tokens from /sync and /messages can be used to paginate /relations."""
+        channel = self._send_relation(RelationTypes.ANNOTATION, "m.reaction", "A")
+        self.assertEquals(200, channel.code, channel.json_body)
+        annotation_id = channel.json_body["event_id"]
+        # Send an event after the relation events.
+        self.helper.send(self.room, body="Latest event", tok=self.user_token)
+
+        # Request /sync, limiting it such that only the latest event is returned
+        # (and not the relation).
+        filter = urllib.parse.quote_plus(
+            '{"room": {"timeline": {"limit": 1}}}'.encode()
+        )
+        channel = self.make_request(
+            "GET", f"/sync?filter={filter}", access_token=self.user_token
+        )
+        self.assertEquals(200, channel.code, channel.json_body)
+        room_timeline = channel.json_body["rooms"]["join"][self.room]["timeline"]
+        sync_prev_batch = room_timeline["prev_batch"]
+        self.assertIsNotNone(sync_prev_batch)
+        # Ensure the relation event is not in the batch returned from /sync.
+        self.assertNotIn(
+            annotation_id, [ev["event_id"] for ev in room_timeline["events"]]
+        )
+
+        # Request /messages, limiting it such that only the latest event is
+        # returned (and not the relation).
+        channel = self.make_request(
+            "GET",
+            f"/rooms/{self.room}/messages?dir=b&limit=1",
+            access_token=self.user_token,
+        )
+        self.assertEquals(200, channel.code, channel.json_body)
+        messages_end = channel.json_body["end"]
+        self.assertIsNotNone(messages_end)
+        # Ensure the relation event is not in the chunk returned from /messages.
+        self.assertNotIn(
+            annotation_id, [ev["event_id"] for ev in channel.json_body["chunk"]]
+        )
+
+        # Request /relations with the pagination tokens received from both the
+        # /sync and /messages responses above, in turn.
+        #
+        # This is a tiny bit silly since the client wouldn't know the parent ID
+        # from the requests above; consider the parent ID to be known from a
+        # previous /sync.
+        for from_token in (sync_prev_batch, messages_end):
+            channel = self.make_request(
+                "GET",
+                f"/_matrix/client/unstable/rooms/{self.room}/relations/{self.parent_id}?from={from_token}",
+                access_token=self.user_token,
+            )
+            self.assertEquals(200, channel.code, channel.json_body)
+
+            # The relation should be in the returned chunk.
+            self.assertIn(
+                annotation_id, [ev["event_id"] for ev in channel.json_body["chunk"]]
+            )
+
     def test_aggregation_pagination_groups(self):
         """Test that we can paginate annotation groups correctly."""
 
@@ -337,7 +458,7 @@ class RelationsTestCase(unittest.HomeserverTestCase):
         channel = self._send_relation(RelationTypes.ANNOTATION, "m.reaction", key="a")
         self.assertEquals(200, channel.code, channel.json_body)
 
-        prev_token: Optional[str] = None
+        prev_token = ""
         found_event_ids: List[str] = []
         encoded_key = urllib.parse.quote_plus("👍".encode())
         for _ in range(20):
@@ -347,15 +468,42 @@ class RelationsTestCase(unittest.HomeserverTestCase):
 
             channel = self.make_request(
                 "GET",
-                "/_matrix/client/unstable/rooms/%s"
-                "/aggregations/%s/%s/m.reaction/%s?limit=1%s"
-                % (
-                    self.room,
-                    self.parent_id,
-                    RelationTypes.ANNOTATION,
-                    encoded_key,
-                    from_token,
-                ),
+                f"/_matrix/client/unstable/rooms/{self.room}"
+                f"/aggregations/{self.parent_id}/{RelationTypes.ANNOTATION}"
+                f"/m.reaction/{encoded_key}?limit=1{from_token}",
+                access_token=self.user_token,
+            )
+            self.assertEquals(200, channel.code, channel.json_body)
+
+            self.assertEqual(len(channel.json_body["chunk"]), 1, channel.json_body)
+
+            found_event_ids.extend(e["event_id"] for e in channel.json_body["chunk"])
+
+            next_batch = channel.json_body.get("next_batch")
+
+            self.assertNotEquals(prev_token, next_batch)
+            prev_token = next_batch
+
+            if not prev_token:
+                break
+
+        # We paginated backwards, so reverse
+        found_event_ids.reverse()
+        self.assertEquals(found_event_ids, expected_event_ids)
+
+        # Reset and try again, but convert the tokens to the legacy format.
+        prev_token = ""
+        found_event_ids = []
+        for _ in range(20):
+            from_token = ""
+            if prev_token:
+                from_token = "&from=" + self._stream_token_to_relation_token(prev_token)
+
+            channel = self.make_request(
+                "GET",
+                f"/_matrix/client/unstable/rooms/{self.room}"
+                f"/aggregations/{self.parent_id}/{RelationTypes.ANNOTATION}"
+                f"/m.reaction/{encoded_key}?limit=1{from_token}",
                 access_token=self.user_token,
             )
             self.assertEquals(200, channel.code, channel.json_body)
@@ -453,7 +601,9 @@ class RelationsTestCase(unittest.HomeserverTestCase):
         )
         self.assertEquals(400, channel.code, channel.json_body)
 
-    @unittest.override_config({"experimental_features": {"msc3440_enabled": True}})
+    @unittest.override_config(
+        {"experimental_features": {"msc3440_enabled": True, "msc3666_enabled": True}}
+    )
     def test_bundled_aggregations(self):
         """
         Test that annotations, references, and threads get correctly bundled.
@@ -579,6 +729,23 @@ class RelationsTestCase(unittest.HomeserverTestCase):
         self.assertTrue(room_timeline["limited"])
         assert_bundle(self._find_event_in_chunk(room_timeline["events"]))
 
+        # Request search.
+        channel = self.make_request(
+            "POST",
+            "/search",
+            # Search term matches the parent message.
+            content={"search_categories": {"room_events": {"search_term": "Hi"}}},
+            access_token=self.user_token,
+        )
+        self.assertEquals(200, channel.code, channel.json_body)
+        chunk = [
+            result["result"]
+            for result in channel.json_body["search_categories"]["room_events"][
+                "results"
+            ]
+        ]
+        assert_bundle(self._find_event_in_chunk(chunk))
+
     def test_aggregation_get_event_for_annotation(self):
         """Test that annotations do not get bundled aggregations included
         when directly requested.
@@ -759,6 +926,7 @@ class RelationsTestCase(unittest.HomeserverTestCase):
         self.assertEquals(200, channel.code, channel.json_body)
         self.assertNotIn("m.relations", channel.json_body["unsigned"])
 
+    @unittest.override_config({"experimental_features": {"msc3666_enabled": True}})
     def test_edit(self):
         """Test that a simple edit works."""
 
@@ -825,6 +993,23 @@ class RelationsTestCase(unittest.HomeserverTestCase):
         self.assertTrue(room_timeline["limited"])
         assert_bundle(self._find_event_in_chunk(room_timeline["events"]))
 
+        # Request search.
+        channel = self.make_request(
+            "POST",
+            "/search",
+            # Search term matches the parent message.
+            content={"search_categories": {"room_events": {"search_term": "Hi"}}},
+            access_token=self.user_token,
+        )
+        self.assertEquals(200, channel.code, channel.json_body)
+        chunk = [
+            result["result"]
+            for result in channel.json_body["search_categories"]["room_events"][
+                "results"
+            ]
+        ]
+        assert_bundle(self._find_event_in_chunk(chunk))
+
     def test_multi_edit(self):
         """Test that multiple edits, including attempts by people who
         shouldn't be allowed, are correctly handled.
diff --git a/tests/rest/client/test_room_batch.py b/tests/rest/client/test_room_batch.py
index 721454c187..e9f8704035 100644
--- a/tests/rest/client/test_room_batch.py
+++ b/tests/rest/client/test_room_batch.py
@@ -89,7 +89,7 @@ class RoomBatchTestCase(unittest.HomeserverTestCase):
         self.clock = clock
         self.storage = hs.get_storage()
 
-        self.virtual_user_id = self.register_appservice_user(
+        self.virtual_user_id, _ = self.register_appservice_user(
             "as_user_potato", self.appservice.token
         )
 
diff --git a/tests/rest/client/test_rooms.py b/tests/rest/client/test_rooms.py
index 10a4a4dc5e..b7f086927b 100644
--- a/tests/rest/client/test_rooms.py
+++ b/tests/rest/client/test_rooms.py
@@ -18,7 +18,7 @@
 """Tests REST events for /rooms paths."""
 
 import json
-from typing import Dict, Iterable, List, Optional
+from typing import Iterable, List
 from unittest.mock import Mock, call
 from urllib import parse as urlparse
 
@@ -35,7 +35,7 @@ from synapse.api.errors import Codes, HttpResponseException
 from synapse.handlers.pagination import PurgeStatus
 from synapse.rest import admin
 from synapse.rest.client import account, directory, login, profile, room, sync
-from synapse.types import JsonDict, Requester, RoomAlias, UserID, create_requester
+from synapse.types import JsonDict, RoomAlias, UserID, create_requester
 from synapse.util.stringutils import random_string
 
 from tests import unittest
@@ -674,121 +674,6 @@ class RoomsCreateTestCase(RoomBase):
         channel = self.make_request("POST", "/createRoom", content)
         self.assertEqual(200, channel.code)
 
-    def test_spamchecker_invites(self):
-        """Tests the user_may_create_room_with_invites spam checker callback."""
-
-        # Mock do_3pid_invite, so we don't fail from failing to send a 3PID invite to an
-        # IS.
-        async def do_3pid_invite(
-            room_id: str,
-            inviter: UserID,
-            medium: str,
-            address: str,
-            id_server: str,
-            requester: Requester,
-            txn_id: Optional[str],
-            id_access_token: Optional[str] = None,
-        ) -> int:
-            return 0
-
-        do_3pid_invite_mock = Mock(side_effect=do_3pid_invite)
-        self.hs.get_room_member_handler().do_3pid_invite = do_3pid_invite_mock
-
-        # Add a mock callback for user_may_create_room_with_invites. Make it allow any
-        # room creation request for now.
-        return_value = True
-
-        async def user_may_create_room_with_invites(
-            user: str,
-            invites: List[str],
-            threepid_invites: List[Dict[str, str]],
-        ) -> bool:
-            return return_value
-
-        callback_mock = Mock(side_effect=user_may_create_room_with_invites)
-        self.hs.get_spam_checker()._user_may_create_room_with_invites_callbacks.append(
-            callback_mock,
-        )
-
-        # The MXIDs we'll try to invite.
-        invited_mxids = [
-            "@alice1:red",
-            "@alice2:red",
-            "@alice3:red",
-            "@alice4:red",
-        ]
-
-        # The 3PIDs we'll try to invite.
-        invited_3pids = [
-            {
-                "id_server": "example.com",
-                "id_access_token": "sometoken",
-                "medium": "email",
-                "address": "alice1@example.com",
-            },
-            {
-                "id_server": "example.com",
-                "id_access_token": "sometoken",
-                "medium": "email",
-                "address": "alice2@example.com",
-            },
-            {
-                "id_server": "example.com",
-                "id_access_token": "sometoken",
-                "medium": "email",
-                "address": "alice3@example.com",
-            },
-        ]
-
-        # Create a room and invite the Matrix users, and check that it succeeded.
-        channel = self.make_request(
-            "POST",
-            "/createRoom",
-            json.dumps({"invite": invited_mxids}).encode("utf8"),
-        )
-        self.assertEqual(200, channel.code)
-
-        # Check that the callback was called with the right arguments.
-        expected_call_args = ((self.user_id, invited_mxids, []),)
-        self.assertEquals(
-            callback_mock.call_args,
-            expected_call_args,
-            callback_mock.call_args,
-        )
-
-        # Create a room and invite the 3PIDs, and check that it succeeded.
-        channel = self.make_request(
-            "POST",
-            "/createRoom",
-            json.dumps({"invite_3pid": invited_3pids}).encode("utf8"),
-        )
-        self.assertEqual(200, channel.code)
-
-        # Check that do_3pid_invite was called the right amount of time
-        self.assertEquals(do_3pid_invite_mock.call_count, len(invited_3pids))
-
-        # Check that the callback was called with the right arguments.
-        expected_call_args = ((self.user_id, [], invited_3pids),)
-        self.assertEquals(
-            callback_mock.call_args,
-            expected_call_args,
-            callback_mock.call_args,
-        )
-
-        # Now deny any room creation.
-        return_value = False
-
-        # Create a room and invite the 3PIDs, and check that it failed.
-        channel = self.make_request(
-            "POST",
-            "/createRoom",
-            json.dumps({"invite_3pid": invited_3pids}).encode("utf8"),
-        )
-        self.assertEqual(403, channel.code)
-
-        # Check that do_3pid_invite wasn't called this time.
-        self.assertEquals(do_3pid_invite_mock.call_count, len(invited_3pids))
-
     def test_spam_checker_may_join_room(self):
         """Tests that the user_may_join_room spam checker callback is correctly bypassed
         when creating a new room.
diff --git a/tests/rest/client/test_sendtodevice.py b/tests/rest/client/test_sendtodevice.py
index 6db7062a8e..e2ed14457f 100644
--- a/tests/rest/client/test_sendtodevice.py
+++ b/tests/rest/client/test_sendtodevice.py
@@ -198,3 +198,43 @@ class SendToDeviceTestCase(HomeserverTestCase):
                 "content": {"idx": 3},
             },
         )
+
+    def test_limited_sync(self):
+        """If a limited sync for to-devices happens the next /sync should respond immediately."""
+
+        self.register_user("u1", "pass")
+        user1_tok = self.login("u1", "pass", "d1")
+
+        user2 = self.register_user("u2", "pass")
+        user2_tok = self.login("u2", "pass", "d2")
+
+        # Do an initial sync
+        channel = self.make_request("GET", "/sync", access_token=user2_tok)
+        self.assertEqual(channel.code, 200, channel.result)
+        sync_token = channel.json_body["next_batch"]
+
+        # Send 150 to-device messages. We limit to 100 in `/sync`
+        for i in range(150):
+            test_msg = {"foo": "bar"}
+            chan = self.make_request(
+                "PUT",
+                f"/_matrix/client/r0/sendToDevice/m.test/1234-{i}",
+                content={"messages": {user2: {"d2": test_msg}}},
+                access_token=user1_tok,
+            )
+            self.assertEqual(chan.code, 200, chan.result)
+
+        channel = self.make_request(
+            "GET", f"/sync?since={sync_token}&timeout=300000", access_token=user2_tok
+        )
+        self.assertEqual(channel.code, 200, channel.result)
+        messages = channel.json_body.get("to_device", {}).get("events", [])
+        self.assertEqual(len(messages), 100)
+        sync_token = channel.json_body["next_batch"]
+
+        channel = self.make_request(
+            "GET", f"/sync?since={sync_token}&timeout=300000", access_token=user2_tok
+        )
+        self.assertEqual(channel.code, 200, channel.result)
+        messages = channel.json_body.get("to_device", {}).get("events", [])
+        self.assertEqual(len(messages), 50)
diff --git a/tests/rest/client/test_sync.py b/tests/rest/client/test_sync.py
index c427686376..cd4af2b1f3 100644
--- a/tests/rest/client/test_sync.py
+++ b/tests/rest/client/test_sync.py
@@ -23,7 +23,7 @@ from synapse.api.constants import (
     ReadReceiptEventFields,
     RelationTypes,
 )
-from synapse.rest.client import knock, login, read_marker, receipts, room, sync
+from synapse.rest.client import devices, knock, login, read_marker, receipts, room, sync
 
 from tests import unittest
 from tests.federation.transport.test_knocking import (
@@ -710,3 +710,58 @@ class SyncCacheTestCase(unittest.HomeserverTestCase):
             channel.await_result(timeout_ms=9900)
         channel.await_result(timeout_ms=200)
         self.assertEqual(channel.code, 200, channel.json_body)
+
+
+class DeviceListSyncTestCase(unittest.HomeserverTestCase):
+    servlets = [
+        synapse.rest.admin.register_servlets,
+        login.register_servlets,
+        sync.register_servlets,
+        devices.register_servlets,
+    ]
+
+    def test_user_with_no_rooms_receives_self_device_list_updates(self):
+        """Tests that a user with no rooms still receives their own device list updates"""
+        device_id = "TESTDEVICE"
+
+        # Register a user and login, creating a device
+        self.user_id = self.register_user("kermit", "monkey")
+        self.tok = self.login("kermit", "monkey", device_id=device_id)
+
+        # Request an initial sync
+        channel = self.make_request("GET", "/sync", access_token=self.tok)
+        self.assertEqual(channel.code, 200, channel.json_body)
+        next_batch = channel.json_body["next_batch"]
+
+        # Now, make an incremental sync request.
+        # It won't return until something has happened
+        incremental_sync_channel = self.make_request(
+            "GET",
+            f"/sync?since={next_batch}&timeout=30000",
+            access_token=self.tok,
+            await_result=False,
+        )
+
+        # Change our device's display name
+        channel = self.make_request(
+            "PUT",
+            f"devices/{device_id}",
+            {
+                "display_name": "freeze ray",
+            },
+            access_token=self.tok,
+        )
+        self.assertEqual(channel.code, 200, channel.json_body)
+
+        # The sync should now have returned
+        incremental_sync_channel.await_result(timeout_ms=20000)
+        self.assertEqual(incremental_sync_channel.code, 200, channel.json_body)
+
+        # We should have received notification that the (user's) device has changed
+        device_list_changes = incremental_sync_channel.json_body.get(
+            "device_lists", {}
+        ).get("changed", [])
+
+        self.assertIn(
+            self.user_id, device_list_changes, incremental_sync_channel.json_body
+        )
diff --git a/tests/rest/client/test_third_party_rules.py b/tests/rest/client/test_third_party_rules.py
index 4e71b6ec12..ac6b86ff6b 100644
--- a/tests/rest/client/test_third_party_rules.py
+++ b/tests/rest/client/test_third_party_rules.py
@@ -107,6 +107,7 @@ class ThirdPartyRulesTestCase(unittest.FederatingHomeserverTestCase):
         return hs
 
     def prepare(self, reactor, clock, homeserver):
+        super().prepare(reactor, clock, homeserver)
         # Create some users and a room to play with during the tests
         self.user_id = self.register_user("kermit", "monkey")
         self.invitee = self.register_user("invitee", "hackme")
@@ -473,8 +474,6 @@ class ThirdPartyRulesTestCase(unittest.FederatingHomeserverTestCase):
     def _send_event_over_federation(self) -> None:
         """Send a dummy event over federation and check that the request succeeds."""
         body = {
-            "origin": self.hs.config.server.server_name,
-            "origin_server_ts": self.clock.time_msec(),
             "pdus": [
                 {
                     "sender": self.user_id,
@@ -492,11 +491,10 @@ class ThirdPartyRulesTestCase(unittest.FederatingHomeserverTestCase):
             ],
         }
 
-        channel = self.make_request(
+        channel = self.make_signed_federation_request(
             method="PUT",
             path="/_matrix/federation/v1/send/1",
             content=body,
-            federation_auth_origin=self.hs.config.server.server_name.encode("utf8"),
         )
 
         self.assertEqual(channel.code, 200, channel.result)
diff --git a/tests/rest/client/utils.py b/tests/rest/client/utils.py
index 8424383580..1c0cb0cf4f 100644
--- a/tests/rest/client/utils.py
+++ b/tests/rest/client/utils.py
@@ -31,6 +31,7 @@ from typing import (
     overload,
 )
 from unittest.mock import patch
+from urllib.parse import urlencode
 
 import attr
 from typing_extensions import Literal
@@ -147,12 +148,20 @@ class RestHelper:
             expect_code=expect_code,
         )
 
-    def join(self, room=None, user=None, expect_code=200, tok=None):
+    def join(
+        self,
+        room: str,
+        user: Optional[str] = None,
+        expect_code: int = 200,
+        tok: Optional[str] = None,
+        appservice_user_id: Optional[str] = None,
+    ) -> None:
         self.change_membership(
             room=room,
             src=user,
             targ=user,
             tok=tok,
+            appservice_user_id=appservice_user_id,
             membership=Membership.JOIN,
             expect_code=expect_code,
         )
@@ -209,11 +218,12 @@ class RestHelper:
     def change_membership(
         self,
         room: str,
-        src: str,
-        targ: str,
+        src: Optional[str],
+        targ: Optional[str],
         membership: str,
         extra_data: Optional[dict] = None,
         tok: Optional[str] = None,
+        appservice_user_id: Optional[str] = None,
         expect_code: int = 200,
         expect_errcode: Optional[str] = None,
     ) -> None:
@@ -227,15 +237,26 @@ class RestHelper:
             membership: The type of membership event
             extra_data: Extra information to include in the content of the event
             tok: The user access token to use
+            appservice_user_id: The `user_id` URL parameter to pass.
+                This allows driving an application service user
+                using an application service access token in `tok`.
             expect_code: The expected HTTP response code
             expect_errcode: The expected Matrix error code
         """
         temp_id = self.auth_user_id
         self.auth_user_id = src
 
-        path = "/_matrix/client/r0/rooms/%s/state/m.room.member/%s" % (room, targ)
+        path = f"/_matrix/client/r0/rooms/{room}/state/m.room.member/{targ}"
+        url_params: Dict[str, str] = {}
+
         if tok:
-            path = path + "?access_token=%s" % tok
+            url_params["access_token"] = tok
+
+        if appservice_user_id:
+            url_params["user_id"] = appservice_user_id
+
+        if url_params:
+            path += "?" + urlencode(url_params)
 
         data = {"membership": membership}
         data.update(extra_data or {})