NUnit 和 MOQ：测试捕获异常时调用另一个方法的 try catch

Question

我知道 MOQ 框架并不是真正为在这种情况下提供帮助而设计的，但也许您可以提供帮助...

我有一个使用 try/catch 的方法，每当抛出异常时调用通知方法。我想要做的是创建一个 integration/unit 测试来检查以确保在抛出任何异常时调用 SendNotification。

正在测试的方法：

public virtual void MonitorIntradayBuilds(IIntradayBuilds intradayBuilds)
{
    try
    {
        var intradayBuildFound = intradayBuilds.CheckForIntradayBuilds();
        if (intradayBuildFound && !IntradayBuildsComplete && !DailyBuildsFound)
        {
            IntradayBuildsComplete = intradayBuilds.StartIntradayBuilds();
            //should start daily builds?
        }
    }
    catch (Exception ex)
    {
        SendNotification("MonitorIntradayBuilds threw an exception", ex);
    }
}

测试用例：

    [Test]
    public void it_should_notify_developers_immediately_if_there_is_a_problem_when_checking_for_intraday_builds()
    {
        //Arrange
        var mockDua = new Mock<DUA>();
        var mockIB = new Mock<IIntradayBuilds>();

        //Act
        mockIB.Setup(x => x.CheckForIntradayBuilds()).Throws(new Exception());
        mockDua.Object.MonitorIntradayBuilds(mockIB.Object);

        //Assert
        mockDua.Verify(x => x.SendNotification(It.IsAny<string>(), It.IsAny<Exception>()), Times.Once);
    }

我一直点击 Moq.MockException 然后看到 SendNotification "expected an invocation on the mock once, but was 0 times..."

我试过在测试用例上使用 [ExpectedException] 属性，但无济于事。它使测试通过，但仍未调用 SendNotification 方法。

有什么想法吗？

Answer 1

解决了。

原来你需要在你正在模拟的被测系统上设置 CallBase 属性。

测试用例现在是：

    [Test]
    public void it_should_notify_developers_immediately_if_there_is_a_problem_when_checking_for_intraday_builds()
    {
        //Arrange
        var mockDua = new Mock<DUA>();
        var mockIB = new Mock<IIntradayBuilds>();
        mockDua.CallBase = true; // <<<< Added this line!

        //Act
        mockIB.Setup(x => x.CheckForIntradayBuilds()).Throws(new Exception());
        mockDua.Object.MonitorIntradayBuilds(mockIB.Object);

        //Assert
        mockDua.Verify(x => x.SendNotification(It.IsAny<string>(), It.IsAny<Exception>()), Times.Once);
    }

希望对其他人有所帮助 :)

NUnit 和 MOQ：测试捕获异常时调用另一个方法的 try catch

NUnit & MOQ: Testing a try catch that calls another method when an Exception is caught

nunit

moq