@Test
fun nestedBinding() {
    val father = Person("Mr Father", 50)
    val stepFather = Person("Mr Step Father", 40)
    val child = Person("Firstborn Child", 18)
    child.parent = father

    val fatherName = child.parentProperty().nested(Person::nameProperty)
    Assert.assertEquals("Mr Father", fatherName.value)
    fatherName.value = "Mister Father"
    Assert.assertEquals("Mister Father", father.name)
    child.parent = stepFather
    Assert.assertEquals("Mr Step Father", fatherName.value)
}