Question 215404 in ASP.NET Question posted in
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Asp.net – How to mock dependency of service that has fuction with argument in type of 'async Function'?

I have a function here that is for getting the logs in the queue. How can I mock this function for unit testing ?

void QueueBackgroundWorkItem(Func<CancellationToken, IServiceProvider, Task> workItem);

Mock<IBackgroundTaskQueue> _Mock= new Mock<IBackgroundTaskQueue>();

_Mock.Setup(x=>x.QueueBackgroundWorkItem(?)).Returns(Task.CompletedTask);

Thank you.

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2

Answers


  1. 0

    One way to mock such method, if you are not testing a specific parameter, is to use an It.IsAny:

    _IBackgroundTaskQueueMock.Setup(x => x.QueueBackgroundWorkItem(It.IsAny<Func<CancellationToken, IServiceProvider, Task>>()))
    .Returns(Task.CompletedTask);
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  2. 0

    QueueBackgroundWorkItem returns void so just setup with It.IsAny:

    _Mock.Setup(x => x.QueueBackgroundWorkItem(It.IsAny<Func<CancellationToken, IServiceProvider, Task>>()));
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