验证传入的模拟对象上的设置

本文关键字：设置 对象 模拟 验证 | 更新日期: 2024-10-22 18:50:03

我正在测试我的类

public class myclass
{
  private IAwesome awesomeObject;
  public myclass(IAwesome awesomeObject)
  {
     this.awesomeObject = awesomeObject;
  }

  public void MethodUnderTest()
  {
      this.awesomeObject.RunSomething(); //I want to verify that RunSomething was called
  }
}

我这样做的方式是：

//Arrange
var mockAwesome = new Mock<IAwesome>();
mockAwesome.Setup(x=>x.RunSomething()).Returns ... Verify()...;
//Act
var sut = new myclass(mockAwesome.object);
sut.MethodUnderTest();
//Assert
mockAwesome.Verify();

我得到的例外是：

System.NotSupportedException：表达式引用的方法不属于模拟对象：x=>x.RunSomething

是否无法测试在我传递到类中的模拟对象上执行了特定的方法，该对象现在是该类的私有成员的一部分

验证传入的模拟对象上的设置

将设置行修改为mockAwesome.Setup(x=>x.RunSomething()).Verifiable()，它应该适用于您提供的示例。

[TestClass]
public class MoqVerificationTest {
    [TestMethod]
    public void Moq_Should_Verify_Setup() {
        //Arrange
        var mockAwesome = new Mock<IAwesome>();
        mockAwesome.Setup(x => x.RunSomething()).Verifiable();
        //Act
        var sut = new myclass(mockAwesome.Object);
        sut.MethodUnderTest();
        //Assert
        mockAwesome.Verify();
    }
    public interface IAwesome {
        void RunSomething();
    }
    public class myclass {
        private IAwesome awesomeObject;
        public myclass(IAwesome awesomeObject) {
            this.awesomeObject = awesomeObject;
        }
        public void MethodUnderTest() {
            this.awesomeObject.RunSomething(); //I want to verify that RunSomething was called
        }
    }
}

要确认，请在示例类中注释掉this.awesomeObject.RunSomething()，然后再次运行测试。它将失败，因为您将RunSomething设置为Verifiable()，但它未被使用。

测试时，对我来说非常好…

试试这种方法，看看是否有什么不同的结果。。。

void Main()
{
    IAwesome awesome    = Mock.Of<IAwesome>();
    Mock<IAwesome> mock = Mock.Get(awesome);
    mock.Setup(m => m.RunSomething());
    MyClass myClass = new MyClass(awesome);
    myClass.MethodUnderTest();
    mock.Verify(m => m.RunSomething(), Times.Once);
}
public interface IAwesome
{
    void RunSomething();
}
public class MyClass
{
    private IAwesome awesomeObject;
    public myclass(IAwesome awesomeObject)
    {
        this.awesomeObject = awesomeObject;
    }
    public void MethodUnderTest()
    {
        this.awesomeObject.RunSomething();
    }
}
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