def METHOD_NAME(migrator_name):
    with open(os.path.join(YAML_PATH, f"{migrator_name}.yaml")) as fp:
        migrator = fp.read()
    with open(os.path.join(YAML_PATH, f"{migrator_name}_out.yaml")) as fp:
        out = fp.read()
    assert merge_migrator_cbc(migrator, CBC) == out