test(ui): Test that RoomList receives State updates even if the s…

…ame.

`RoomList::state` provides a `Subscriber` to the `State`. This patch
modifies the way the state is tested, to ensure that there is always
an update broadcasted even if the state is the same (e.g. if the state
moves from `CarryOn` to `CarryOn`).

crates/matrix-sdk-ui/tests/integration/room_list.rs

@@ -83,7 +83,9 @@ macro_rules! sync_then_assert_request_and_fake_response {
             $(
                 use State::*;
 
-                assert_matches!($room_list.state().get(), $pre_state, "pre state");
+                let mut state = $room_list.state();
+
+                assert_matches!(state.get(), $pre_state, "pre state");
             )?
 
             let next = $room_list_sync_stream.next().await;
@@ -107,7 +109,7 @@ macro_rules! sync_then_assert_request_and_fake_response {
                 }
             }
 
-            $( assert_matches!($room_list.state().get(), $post_state, "post state"); )?
+            $( assert_matches!(state.next().now_or_never(), Some(Some($post_state)), "post state"); )?
 
             next
         }