val list = arrayListOf<Int>()
        delegateClosureOf<MutableList<Int>> { add(42) }.apply {
            delegate = list
            call()
        }
        assertEquals(42, list.first())
    }

    @Test
    fun `can use closure with a null delegate call`() {
        var passedIntoClosure: Any? = "Something non null"
        delegateClosureOf<Any?> { passedIntoClosure = this }.apply {
            delegate = null