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在 NUnit Console Runner 中使用/domain=multiple运行时，会发生 NullReference 异常。

在没有 /domain=multiple 或 /domain=single 的情况下运行。使用 ReSharper 10.0.2 测试运行程序运行并选中“使用单独的 AppDomain”设置可以按照我想要的方式运行，并并行运行测试程序集。

我希望能够使用控制台运行器从多个程序集并行运行参数化测试。由于这需要并行加载静态资产，因此测试需要在多个 AppDomain 中运行。

我创建了一个简单的单元测试解决方案来重现该问题。有两个项目。每个都有一个测试类，如下所示：

[TestFixture]
public class UnitTest1
{
    public static IEnumerable Test1Static
    {
        get
        {

            Console.WriteLine($"before sleep 1 - {DateTime.Now}");
            Thread.Sleep(12000);
            Console.WriteLine($"after sleep 1 - {DateTime.Now}");
            return new List<bool> { true, true };
        }
    }

    [Test, TestCaseSource(nameof(Test1Static))]
    public void TestMethod1(bool tc)
    {
        Assert.IsTrue(tc);
    }
}

以下是控制台结果：

nunit3-console.exe "UnitTestProject1\bin\Debug\UnitTestProject1.dll" "UnitTestProject2\bin\Debug\UnitTestProject2.dll" /domain=multiple

NUnit Console Runner 3.2.0
Copyright (C) 2016 Charlie Poole

Runtime Environment
   OS Version: Microsoft Windows NT 6.1.7601 Service Pack 1
  CLR Version: 2.0.50727.5485

Test Files
    UnitTestProject1\bin\Debug\UnitTestProject1.dll
    UnitTestProject2\bin\Debug\UnitTestProject2.dll


Test Run Summary
  Overall result: System.NullReferenceException: Object reference not set to an instance of an object.
   at NUnit.Common.ColorConsoleWriter.WriteLabel(String label, Object option, ColorStyle valueStyle)
   at NUnit.Common.ColorConsoleWriter.WriteLabelLine(String label, Object option, ColorStyle valueStyle)
   at NUnit.ConsoleRunner.ResultReporter.WriteSummaryReport()
   at NUnit.ConsoleRunner.ConsoleRunner.RunTests(TestPackage package, TestFilter filter)
   at NUnit.ConsoleRunner.Program.Main(String[] args)
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1 回答 1

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By default, NUnit 3 runs each assembly in a separate process, (the /process=Multiple flag), so the /domain=multiple flag only makes sense when used in combination with /process=InProcess or with /process=Separate because your tests are already in multiple AppDomains, albeit in different processes. If you add either of those flags, it will work as expected.

That said, NUnit should not be crashing in this situation, so please report it on GitHub.

于 2016-03-26T10:57:41.013 回答