I create a mock of a class with mockk. On this mock I now call a method that gets a lambda as a parameter.
这个lambda用作回调，将回调的状态更改传递给方法的调用方.
class ObjectToMock() {
fun methodToCall(someValue: String?, observer: (State) -> Unit) {
...
}
}
如何配置模拟以调用传递的lambda？
You can use answers:
val otm: ObjectToMock = mockk()
every { otm.methodToCall(any(), any())} answers {
secondArg<(String) -> Unit>().invoke("anything")
}
otm.methodToCall("bla"){
println("invoked with $it") //invoked with anything
}
在answers范围内，您可以访问firstArg、secondArg等，并通过将其作为泛型参数提供来获得预期的类型.请注意，我在这里显式使用invoke是为了使其更具可读性，也可以省略它.