then:
        assertHasProducer(copy, task)
        assertHasNoProducer(property)
    }

    def "shallow copy does not inherit producer from the original"() {
        given:
        def task = Mock(Task)
        def property = propertyWithNoValue()
        property.attachProducer(owner(task))

        expect:
        assertHasNoProducer(property.shallowCopy())
    }