问题描述
我用ockk创建一个类的模型.在此模拟上,我现在调用一个将lambda作为参数的方法.
I create a mock of a class with mockk.On this mock I now call a method that gets a lambda as a parameter.
此lambda用作回调,以将回调的状态更改传递给方法的调用方.
This lambda serves as a callback to deliver state changes of the callback to the caller of the method.
class ObjectToMock() {
fun methodToCall(someValue: String?, observer: (State) -> Unit) {
...
}
}
如何配置模拟以调用传递的lambda?
How do I configure the mock to call the passed lambda?
推荐答案
您可以使用 answers
:
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,甚至可以通过将其作为通用参数提供来获得预期的类型.请注意,我使用invoke
使其更具可读性,也可以将其作为带空括号的普通函数来调用.
Within the answers
scope you can access firstArg
, secondArg
etc and even get the expected type by providing it as a generic parameter. Note that I used invoke
to make it more readable, you can also invoke it as a normal function with empty parentheses.
这篇关于如何使用Mockk调用Lambda回调的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!