diff --git a/tests/test_decorators/test_extension_integration.py b/tests/test_decorators/test_extension_integration.py
index ebb1ff6..5a333d1 100644
--- a/tests/test_decorators/test_extension_integration.py
+++ b/tests/test_decorators/test_extension_integration.py
@@ -60,11 +60,20 @@ def test_get_endpoint_id_with_route(security_config: SecurityConfig) -> None:
     mock_request.path = "/test"
     mock_request.path_info = "/test"
     mock_request.method = "GET"
+    mock_request.guard_route_id = "orders:list"
     mock_request.guard_endpoint_id = "test_module.test_function"
 
+    # The stamped route id wins over the runtime endpoint-id extra
+    # (guard-core #142's get_endpoint_id resolution order).
+    endpoint_id = middleware._get_endpoint_id(mock_request)
+    assert endpoint_id == "orders:list"
+
+    # No stamped route id: the runtime endpoint-id extra is honored.
+    mock_request.guard_route_id = None
     endpoint_id = middleware._get_endpoint_id(mock_request)
     assert endpoint_id == "test_module.test_function"
 
+    # Neither is present: the redacted method:path fallback.
     mock_request.guard_endpoint_id = None
     endpoint_id = middleware._get_endpoint_id(mock_request)
     assert endpoint_id == "GET:/test"