diff --git a/tests/rest/client/sliding_sync/test_sliding_sync.py b/tests/rest/client/sliding_sync/test_sliding_sync.py
index f3cf2111ec..dcec5b4cf0 100644
--- a/tests/rest/client/sliding_sync/test_sliding_sync.py
+++ b/tests/rest/client/sliding_sync/test_sliding_sync.py
@@ -790,6 +790,64 @@ class SlidingSyncTestCase(SlidingSyncBase):
exact=True,
)
+ def test_reject_remote_invite(self) -> None:
+ """Test that rejecting a remote invite comes down incremental sync"""
+
+ user_id = self.register_user("user1", "pass")
+ user_tok = self.login(user_id, "pass")
+
+ # Create a remote room invite (out-of-band membership)
+ room_id = "!room:remote.server"
+ self._create_remote_invite_room_for_user(user_id, None, room_id)
+
+ # Make the Sliding Sync request
+ sync_body = {
+ "lists": {
+ "foo-list": {
+ "ranges": [[0, 1]],
+ "required_state": [(EventTypes.Member, StateValues.ME)],
+ "timeline_limit": 3,
+ }
+ }
+ }
+ response_body, from_token = self.do_sync(sync_body, tok=user_tok)
+ # We should see the room (like normal)
+ self.assertIncludes(
+ set(response_body["lists"]["foo-list"]["ops"][0]["room_ids"]),
+ {room_id},
+ exact=True,
+ )
+
+ # Reject the remote room invite
+ self.helper.leave(room_id, user_id, tok=user_tok)
+
+ # Sync again after rejecting the invite
+ response_body, _ = self.do_sync(sync_body, since=from_token, tok=user_tok)
+
+ # The fix to add the leave event to incremental sync when rejecting a remote
+ # invite relies on the new tables to work.
+ if self.use_new_tables:
+ # We should see the newly_left room
+ self.assertIncludes(
+ set(response_body["lists"]["foo-list"]["ops"][0]["room_ids"]),
+ {room_id},
+ exact=True,
+ )
+ # We should see the leave state for the room so clients don't end up with stuck
+ # invites
+ self.assertIncludes(
+ {
+ (
+ state["type"],
+ state["state_key"],
+ state["content"].get("membership"),
+ )
+ for state in response_body["rooms"][room_id]["required_state"]
+ },
+ {(EventTypes.Member, user_id, Membership.LEAVE)},
+ exact=True,
+ )
+
def test_ignored_user_invites_initial_sync(self) -> None:
"""
Make sure we ignore invites if they are from one of the `m.ignored_user_list` on
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