testing - 在 Kotlin 中使用 Mockito doAnswer

Question

与这段 Java 代码等效的 Kotlin 是什么？

doAnswer(new Answer() {
    @Override
    public Object answer(InvocationOnMock invocation) throws Throwable {
        Design design = new Design();
        GetDesign.Listener callback = (GetDesign.Listener) invocation.getArguments()[0];
        callback.onSuccess(design);
        return null;
    }
}).when(someRepository).getDesign(any(GetDesign.Listener.class));

[更新] 在尝试了几个选项后，我终于使用 mockito-kotlin 让它工作了。 .我认为这是实现 doAnswer 最舒适的方式。语法几乎保持不变:

doAnswer {
    callback = it.arguments[0] as GetDesign.Listener
    callback.onSuccess(Design())
    null
}.whenever(someRepository).execute(any(GetDesign.Listener::class.java))

完整代码和build.gradle配置可见here

Answer 1

doAnswer {
    val design = Design()

    val callback = it.arguments[0] as GetDesign.Listener
    callback.onSuccess(design)

    null // or you can type return@doAnswer null

}.`when`(someRepository).getDesign(any(GetDesign.Listener::class.java))