diff --git a/tests/handlers/test_user_directory.py b/tests/handlers/test_user_directory.py
index e0635c8898..b9ad92b977 100644
--- a/tests/handlers/test_user_directory.py
+++ b/tests/handlers/test_user_directory.py
@@ -914,6 +914,56 @@ class UserDirectoryTestCase(unittest.HomeserverTestCase):
self.hs.get_storage().persistence.persist_event(event, context)
)
+ def test_local_user_leaving_room_remains_in_user_directory(self) -> None:
+ """We've chosen to simplify the user directory's implementation by
+ always including local users. Ensure this invariant is maintained when
+ a local user
+ - leaves a room, and
+ - leaves the last room they're in which is visible to this server.
+
+ This is user-visible if the "search_all_users" config option is on: the
+ local user who left a room would no longer be searchable if this test fails!
+ """
+ alice = self.register_user("alice", "pass")
+ alice_token = self.login(alice, "pass")
+ bob = self.register_user("bob", "pass")
+ bob_token = self.login(bob, "pass")
+
+ # Alice makes two public rooms, which Bob joins.
+ room1 = self.helper.create_room_as(alice, is_public=True, tok=alice_token)
+ room2 = self.helper.create_room_as(alice, is_public=True, tok=alice_token)
+ self.helper.join(room1, bob, tok=bob_token)
+ self.helper.join(room2, bob, tok=bob_token)
+
+ # The user directory tables are updated.
+ users, in_public, in_private = self.get_success(
+ self.user_dir_helper.get_tables()
+ )
+ self.assertEqual(users, {alice, bob})
+ self.assertEqual(
+ in_public, {(alice, room1), (alice, room2), (bob, room1), (bob, room2)}
+ )
+ self.assertEqual(in_private, set())
+
+ # Alice leaves one room. She should still be in the directory.
+ self.helper.leave(room1, alice, tok=alice_token)
+ users, in_public, in_private = self.get_success(
+ self.user_dir_helper.get_tables()
+ )
+ self.assertEqual(users, {alice, bob})
+ self.assertEqual(in_public, {(alice, room2), (bob, room1), (bob, room2)})
+ self.assertEqual(in_private, set())
+
+ # Alice leaves the other. She should still be in the directory.
+ self.helper.leave(room2, alice, tok=alice_token)
+ self.wait_for_background_updates()
+ users, in_public, in_private = self.get_success(
+ self.user_dir_helper.get_tables()
+ )
+ self.assertEqual(users, {alice, bob})
+ self.assertEqual(in_public, {(bob, room1), (bob, room2)})
+ self.assertEqual(in_private, set())
+
class TestUserDirSearchDisabled(unittest.HomeserverTestCase):
servlets = [
|