Add newline at end

tests/test_ws_router.py

@@ -282,4 +282,4 @@ def test_websocket_tags():
     Verify that it is possible to add tags to websocket routes
     """
     route = next(route for route in app.routes if route.name == 'test-tags')
-    assert route.tags == ["test"]
+    assert route.tags == ["test"]