当前尝试在单元测试中测试与ViewBinding类的交互作用
"Invalid Input" should {
"disable the LoginButton" {
val viewBinding: FrLoginBinding = mockk()
InvalidInputViewStateBinder.bind(InvalidInput, viewBinding)
verify { viewBinding.loginButton.isEnabled = false }
}
}
我想到的就是这样。 ViewBinding中的View是公共的最终属性,无法轻松模拟。至少我做不到。传递View
模拟来创建ViewBinding也行不通,因为我必须为其模拟findViewById
。
有人尝试过并使其正常工作吗?
答案 0 :(得分:1)
我遇到了同样的问题。这是我的解决方法
@RunWith(PowerMockRunner::class)
@PrepareForTest(MyLayoutBinding::class)
class MyTestClass {
@Mock
lateinit var mMockViewBinding: MyLayoutBinding
@Mock
lateinit var mMockView: View
@Mock
lateinit var mMockTitleTv: TextView
@Mock
lateinit var mMockRootView: ConstraintLayout
@Before
fun setup() {
MockitoAnnotations.initMocks(this)
PowerMockito.mockStatic(MyLayoutBinding::class.java)
whenever(MyLayoutBinding.bind(mMockView)).thenReturn(mMockViewBinding)
// Use Whitebox for each view component in the layout.
Whitebox.setInternalState(mMockBinding, "title", mMockTitleTv)
// Because 'getRoot' is part of the ViewBinding interface, we just mock the method.
whenever(mMockBinding.root).thenReturn(mMockRootView)
}
}
使用Whitebox设置属性(即按ID的视图),并模拟getRoot()接口方法以将根设置为模拟的根视图。