diff --git a/tests/unit/test_layer.py b/tests/unit/test_layer.py
index 97353f97fa83889490b95113bf3570275814df52..af025648e8a677e6bb99df29558de718e9bf650a 100644
--- a/tests/unit/test_layer.py
+++ b/tests/unit/test_layer.py
@@ -155,11 +155,15 @@ class TestRouteLayer:
         route1 = Route(name="Route 1", utterances=["Yes", "No"])
         route2 = Route(name="Route 2", utterances=["Maybe", "Sure"])
 
+        assert route_layer.routes == []
+
         route_layer.add(route=route1)
+        assert route_layer.routes == [route1]
         assert route_layer.index is not None
         assert route_layer.index.shape[0] == 2
 
         route_layer.add(route=route2)
+        assert route_layer.routes == [route1, route2]
         assert route_layer.index.shape[0] == 4
         del route_layer