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我在编写单元测试时遇到了一个问题，在我调用它的方法中，它不会修改我传入的模拟对象。我不确定我是否缺少明显的东西？

我将模拟设置如下：

var mockList = new List<Mock<IDocument>>();

for (int i = 0; i < 4; i++)
{
    var mockDocument = new Mock<IDocument>();
        mockDocument.Setup(t => t.DocumentNo).Returns(i.ToString()); 
        mockList.Add(mockDocument);
}

mockDocumentRepository.Setup(x => x.GetDocuments(It.IsAny<string>(), It.IsAny<string>()))
    .Returns(mockList.Select(m => m.Object).ToList());

在执行的方法中，如果我尝试修改模拟类的另一个属性（例如 t.DocumentName），则值保持不变Null。无论如何设置该属性以接受修改？

我这样做的原因是测试文档集合是否已被方法中的另一个集合修改。不确定是否有更好的方法来做到这一点？

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1 回答 1

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Moq will leave all methods unimplemented unless instructed to do otherwise, and that includes properties. If you use mockDocument.SetupProperty(doc => doc.DocumentName); it will implement the property as a regular auto-property. You can use mockDocument.SetupAllProperties() if you want all properties to be auto-implemented, but you'll still have to do it for every mock object.

You could also consider making a stub instead of a mock:

public class StubDocument : IDocument
{
    public string DocumentNo { get; set; }
    public string DocumentName { get; set; }
    ...
}

In general, I find that stubbing is often preferable to mocking when dealing with very simple interfaces, as seems to be the case with your IDocument.

于 2013-09-03T10:51:15.190 回答