def METHOD_NAME(self, setup_method_fixture):
    extension = setup_method_fixture()
    assert extension.get_parts_snippet() == {
        "ros2-humble/ros2-launch": {
            "source": f"{get_extensions_data_dir()}/ros2",
            "plugin": "make",
            "build-packages": [
                "ros-humble-ros-environment",
                "ros-humble-ros-workspace",
                "ros-humble-ament-index-cpp",
                "ros-humble-ament-index-python",
            ],
        }
    }