def test_validate_media_player_features(): """Test validate modes for media players.""" config = {} attrs = {ATTR_SUPPORTED_FEATURES: 20873} entity_state = State('media_player.demo', 'on', attrs) assert validate_media_player_features(entity_state, config) is True config = {FEATURE_ON_OFF: None} assert validate_media_player_features(entity_state, config) is True entity_state = State('media_player.demo', 'on') assert validate_media_player_features(entity_state, config) is False