property.convention((Map) null)
    }

    @Override
    ManagedFactory managedFactory() {
        return new ManagedFactories.MapPropertyManagedFactory(TestUtil.propertyFactory())
    }

    def property = property()

    def "has empty map as value by default"() {
        expect:
        assertValueIs([:])
    }

    def "can change value to empty map"() {
        when: