c# - VSTEST@2 - 错误找不到测试主机 | Azure管道

Question

我在 vstest@2 任务的帮助下在 azure 管道上运行测试解决方案。Pipeline 将测试用例分发到 4 个代理上，然后运行它们。

任务yaml:

  - task: VSTest@2
    inputs:
      testSelector: 'testAssemblies'
      testAssemblyVer2: |
        **/*.Tests.dll
      searchFolder: '$(System.DefaultWorkingDirectory)'
      distributionBatchType: basedOnExecutionTime
      runInParallel: true

在运行开始时，我收到一堆这些消息:

##[error]DiscoveryMessage : Microsoft.VisualStudio.TestPlatform.ObjectModel.TestPlatformException: Could not find testhost
   at Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Hosting.DotnetTestHostManager.GetTestHostProcessStartInfo(IEnumerable`1 sources, IDictionary`2 environmentVariables, TestRunnerConnectionInfo connectionInfo)
   at Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Client.ProxyOperationManager.SetupChannel(IEnumerable`1 sources, String runSettings)
   at Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Client.ProxyDiscoveryManager.DiscoverTests(DiscoveryCriteria discoveryCriteria, ITestDiscoveryEventsHandler2 eventHandler)

之后测试开始通过并进一步运行。

对此我有两个问题 - 这些消息实际上意味着什么/我应该以某种方式进行干预吗？

我可以以某种方式禁用这些消息，这样它们就不会向我的运行日志发送垃圾邮件吗？

Answer 1

您可以尝试以下解决方法来解决上述问题，而不是使用 **/*.Tests.dll 尝试使用 **\*test.dll

- task: VSTest@2
    inputs:
      testSelector: 'testAssemblies'
      testAssemblyVer2: |
        **\*test.dll
      searchFolder: '$(System.DefaultWorkingDirectory)'
      distributionBatchType: basedOnExecutionTime
      runInParallel: true

并且还基于MS DOC :

The VsTest task doesn't support running tests that target multipletarget frameworks at a time as this is a limitation from the vstestplatform side. If you want to run tests that belong to multiple targetframeworks, you'll need multiple instances of the vstest task, one perset of dlls that target a particular framework.

有关更多信息，请参阅以下类似问题的链接:

• Developer community|error when running VStest from Yaml pipeline

• SO THREAD|Azure-DevOps Pipeline fails because of testhost.dll