模拟对象返回带有Moq的模拟列表 [英] Mock object returning a list of mocks with Moq

问题描述

我正在尝试测试以下代码

I am trying to test the following code

    public void CleanUp()
    {
        List<ITask> tasks = _cleanupTaskFactory.GetTasks();

        //Make sure each task has the task.Execute() method called on them
    }

在测试中，我创建了_cleanupTaskFactory的模拟实现，并且想对GetTasks()方法存根以返回类型:

In my test I create a mocked implementation of _cleanupTaskFactory, and I want to stub the GetTasks() method to return a type:

List<Mock<ITask>>

...但是编译器不会接受它作为返回值.

...but the compiler won't accept that as a return value.

我的目标是确保每个返回的任务都具有使用Verify()MoQ方法调用的.Execute()方法.

My goal is to ensure that each task returned has the .Execute() method called on it using the Verify() MoQ method.

我如何断言每个任务都已执行?

How can I assert that each task gets executed?

推荐答案

在您的_cleanUpTaskFactory模拟中，您可以简单地执行以下操作:

In your _cleanUpTaskFactory mock you could simply do something like the following:

var mocks = new List<Mock<ITask>>();
for(var i = 0; i < 10; i++){
    var mock = new Mock<ITask>();
    mock.Setup(t => t.Execute()).Verifiable();
    mocks.Add(mock);
}

_cleanUpTaskFactoryMock.Setup(f => f.GetTasks()).Returns(mocks.Select(m => m.Object).Tolist());

现在请确保保留对mocks列表的引用，并在完成测试后遍历所有模拟并像下面这样调用Verify():

Now make sure to keep a reference to the mocks list, and when you done with your testing you iterate over all the mocks and call Verify() like so:

mocks.ForEach(m => m.Verify());

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