misc: add test on subtyping

SeaDve · Dec 18, 2023 · b44b0a5 · b44b0a5
1 parent 3624acc
commit b44b0a5
Showing 1 changed file with 15 additions and 0 deletions.
diff --git a/src/lib.rs b/src/lib.rs
@@ -1220,3 +1220,18 @@ pub type PlaylistId = OwnedObjectPath;
 /// URIs should be sent as (UTF-8) strings. Local files should use the
 /// "file://" schema.
 pub type Uri = String;
+
+#[cfg(test)]
+mod tests {
+    use static_assertions::assert_trait_sub_all;
+
+    use super::*;
+
+    assert_trait_sub_all!(PlayerInterface: RootInterface);
+    assert_trait_sub_all!(TrackListInterface: PlayerInterface, RootInterface);
+    assert_trait_sub_all!(PlaylistsInterface: PlayerInterface, RootInterface);
+
+    assert_trait_sub_all!(LocalPlayerInterface: LocalRootInterface);
+    assert_trait_sub_all!(LocalTrackListInterface: LocalPlayerInterface, LocalRootInterface);
+    assert_trait_sub_all!(LocalPlaylistsInterface: LocalPlayerInterface, LocalRootInterface);
+}