io.mockk.MockKException：未找到答案：SavedStateHandle(#1).set(Key, Something)

Question

我有一个 ViewModel class 如下（简化以演示我遇到的问题）

class MyViewModel(private val savedStateHandle: SavedStateHandle) : ViewModel() {
    init {
        savedStateHandle.set(KEY, "Something")
    }
}

我有一个 MockK 测试 class 如下

@Test
fun `test something simple`() {
    val savedStateHandle = mockk<SavedStateHandle>()
    val viewModel = MyViewModel(savedStateHandle)
    verify { savedStateHandle.set(MyViewModel.KEY, "Something") }
}

通过运行测试我得到以下错误

io.mockk.MockKException: no answer found for: SavedStateHandle(#1).set(Key, Something)

我想我还需要为 SavedStateHandle 处理 set。我怎么能在 MockK 中这样做？

Answer 1

看来我需要 relaxed = true 到我的 Mock，使其成为 return 默认值。

@Test
fun `test something simple`() {
    val savedStateHandle = mockk<SavedStateHandle>(relaxed = true)
    val viewModel = MyViewModel(savedStateHandle)
    verify { savedStateHandle.set(MyViewModel.KEY, "Something") }
}

另一种选择是模拟 return 值...

@Test
fun `test something simple`() {
    val savedStateHandle = mockk<SavedStateHandle>()
    every {savedStateHandle.set(MyViewModel.KEY, "Something") } returns Unit
    val viewModel = MyViewModel(savedStateHandle)
    verify { savedStateHandle.set(MyViewModel.KEY, "Something") }
}

io.mockk.MockKException：未找到答案：SavedStateHandle(#1).set(Key, Something)

io.mockk.MockKException: no answer found for: SavedStateHandle(#1).set(Key, Something)

kotlin

mockk

viewmodel-savedstate