我可以配置NUnit以便在运行测试时Debug.Fail不显示消息框吗？ [英] Can I configure NUnit so that Debug.Fail doesn't show a message box when I run my tests?

问题描述

我具有此属性：

    public SubjectStatus Status
    {
        get { return status; }
        set
        {
            if (Enum.IsDefined(typeof(SubjectStatus), value))
            {
                status = value;
            }
            else
            {
                Debug.Fail("Error setting Subject.Status", "There is no SubjectStatus enum constant defined for that value.");
                return;
            }
        }
    }

以及此单元测试

    [Test]
    public void StatusProperty_StatusAssignedValueWithoutEnumDefinition_StatusUnchanged()
    {
        Subject subject = new TestSubjectImp("1");

        //  assigned by casting from an int to a defined value
        subject.Status = (SubjectStatus)2;
        Assert.AreEqual(SubjectStatus.Completed, subject.Status);            

        //  assigned by casting from an int to an undefined value
        subject.Status = (SubjectStatus)100;
        //  no change to previous value
        Assert.AreEqual(SubjectStatus.Completed, subject.Status);            
    }

有没有一种方法可以防止Debug.Fail在我显示消息框时失败运行测试，但允许它在我调试应用程序时向我显示？

Is there a way I can prevent Debug.Fail displaying a message box when I run my tests, but allow it to show me one when I debug my application?

推荐答案

我一直做的标准方法这是为NUnit创建一个插件。该插件仅取消注册默认的跟踪侦听器，并注册一个替换，该替换在触发Assert / Trace.Fail时引发异常。我喜欢这种方法，因为如果断言触发，测试仍然会失败，您不会弹出任何消息框，也不必修改生产代码。

The standard way I've always done this is to create a plugin for NUnit. The plugin simply unregisters the default trace listener and registers a replacement that throws an exception when Assert/Trace.Fail is triggered. I like this approach because tests will still fail if a assert trips, you don't get any message boxes popping up and you don't have to modify your production code.

编辑-这是完整的插件代码。不过，您可以自己构建实际的插件-检查NUnit网站：）

Edit -- here's the plugin code in its entirety. You're on your own for building the actual plugin though -- check the NUnit site :)

[NUnitAddin]
public class NUnitAssertionHandler : IAddin
{
    public bool Install(IExtensionHost host)
    {
        Debug.Listeners.Clear();
        Debug.Listeners.Add(new AssertFailTraceListener());
        return true;
    }

    private class AssertFailTraceListener : DefaultTraceListener
    {
        public override void Fail(string message, string detailMessage)
        {
            Assert.Fail("Assertion failure: " + message);
        }

        public override void Fail(string message)
        {
            Assert.Fail("Assertion failure: " + message);
        }
    }
}

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