def METHOD_NAME(empty_swagger_spec, response_spec):
    empty_swagger_spec.config['validate_responses'] = True
    response = Mock(
        spec=IncomingResponse,
        status_code=200,
        headers={'content-type': APP_JSON},
        json=Mock(return_value='Monday'),
    )
    with patch('bravado_core.response.validate_schema_object') as val_schem:
        with patch('bravado_core.response.get_response_spec') as get_resp:
            get_resp.return_value = response_spec
            op = Mock(swagger_spec=empty_swagger_spec)
            unmarshal_response(response, op)
            assert val_schem.call_count == 1