TestMethod 使 MSTest 中的测试运行器崩溃

Question

我正在运行在 MSTest 中进行一组测试，在完成特定测试和运行s TestCleanup 后发生异常，这导致测试运行ner崩溃而不是运行任何更多的测试。我有五个测试可以做到这一点，它们看起来与运行正确的一些测试几乎相同。

这是输出测试中的错误window:

[11/16/2020 5:36:14 PM Informational] ------ Run test started ------
[11/16/2020 5:36:55 PM Error] An exception occurred while invoking executor 'executor://mstestadapter/v2': Object reference not set to an instance of an object.
[11/16/2020 5:36:59 PM Informational] ========== Run test finished: 0 run (0:00:45.5280936) ==========

这是我在输出调试中看到的 window:

Exception thrown: 'System.NullReferenceException' in log4net.dll
Exception thrown: 'System.NullReferenceException' in Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.dll
Exception thrown: 'System.NullReferenceException' in Microsoft.VisualStudio.TestPlatform.MSTest.TestAdapter.dll
'testhost.x86.exe' (CLR v4.0.30319: Domain 3): Unloaded 'C:\WINDOWS\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'
…
The thread 0xdd68 has exited with code 0 (0x0).
Exception thrown: 'System.NullReferenceException' in Microsoft.TestPlatform.PlatformAbstractions.dll
The thread 0xdc80 has exited with code 0 (0x0).
The program '[57424] testhost.x86.exe' has exited with code 0 (0x0).

我可以看到 log4net 在 app.config 中设置为 OFF。导致测试运行ner 崩溃的问题可能是什么？

Answer 1

log4net 是罪魁祸首。记录器已初始化，测试后需要适当清理。

  [TestCleanup]
  public virtual void TestCleanup()
  {
      //// To avoid this error caused by log4net v1.2.13: An exception occurred while invoking executor 'executor://mstestadapter/v1': Type is not resolved for member 'log4net.Util.PropertiesDictionary,log4net, Version=1.2.13.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a'.
      CallContext.FreeNamedDataSlot("log4net.Util.LogicalThreadContextProperties");
  }

TestMethod 使 MSTest 中的测试运行器崩溃

TestMethod is crashing the Test Runner in MSTest

log4net

mstest

nullreferenceexception