}

    def "finalizes upstream properties when value read using #method and disallow unsafe reads"() {
        def a = property()
        def b = property()
        def c = elementProperty()
        def property = property()
        property.disallowUnsafeRead()

        property.addAll(a)

        a.addAll(b)
        a.attachOwner(owner(), displayName("<a>"))