从Moq调用操作 [英] Invoking Actions from Moq

问题描述

我有一个服务，有一个方法，需要两个行动，一个是成功，一个失败。每个 Action 采用包含其他信息的Result参数...

I've got a service with a method that takes two Actions, one for success and one for failure. Each Action takes a Result parameter that contains additional information...

void AuthoriseUser(AuthDetails loginDetails, 
  Action<AuthResult> onSuccess, 
  Action<AuthResult> onFailure);

我正在为依赖于该服务的类编写单元测试，测试这个类在 onSuccess（...）和 onFailure（...）回调。这些是私人或匿名方法，所以如何设置模拟服务来调用Action？

I'm writing a unit test for a class that is dependant on that service, and I want to test that this class does the correct things in the onSuccess(...) and onFailure(...) callbacks. These are either private or anonymous methods, so how do I setup the mocked service to call either Action?

推荐答案

回调方法（请参阅 Moq快速入门回调部分）配置一个回调，该回调用mocked方法调用（ AuthoriseUser ）的原始参数调用，因此您可以调用 onSuccess 和 onFailure 回调有：

You can use the Callback method (see also in the Moq quickstart Callbacks section) to configure a callback which gets called with the original arguments of the mocked method call (AuthoriseUser) so you can call your onSuccess and onFailure callbacks there:

var moq = new Mock<IMyService>();
moq.Setup(m => m.AuthoriseUser(It.IsAny<AuthDetails>(),
                                It.IsAny<Action<AuthResult>>(),
                                It.IsAny<Action<AuthResult>>()))
    .Callback<AuthDetails, Action<AuthResult>, Action<AuthResult>>(
    (loginDetails, onSuccess, onFailure) =>
        {
            onSuccess(new AuthResult()); // fire onSuccess
            onFailure(new AuthResult()); // fire onFailure
        });

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