0 * _

        when:
        property.finalizeValue()
        property.implicitFinalizeValue()
        property.implicitFinalizeValue()
        property.disallowChanges()

        then:
        0 * _
    }

    def "can finalize after changes disallowed"() {
        def property = propertyWithNoValue()
        def function = Mock(Callable)

    }

    def "cannot set to empty list after changes disallowed"() {
        given:
        def property = property()
        property.set(someValue())
        property.disallowChanges()

        when:
        property.empty()

        then:
        def e = thrown(IllegalStateException)
        e.message == 'The value for this property cannot be changed any further.'
    }

    }

    def "cannot set to empty map after changes disallowed"() {
        given:
        property.set(someValue())
        property.disallowChanges()
        when:
        property.empty()
        then:
        def e = thrown IllegalStateException
        e.message == 'The value for this property cannot be changed any further.'
    }