PersistableConfigurationObject create() {
            return object
        }
        void configure(PersistableConfigurationObject object) {
        }
    }

    def readsObjectFromFile() {
        File inputFile = new File('input')

        when:
        def result = generator.read(inputFile)

        then:
        result == object
        1 * object.load(inputFile)
        0 * _._