azure - 由 Azure DevOps 执行时 xUnit 测试失败

Question

我正在创建一个非常简单的测试项目来试验各种 Azure DevOps CI/DI 功能。该项目包含一个带有 ASP.NET Core 网站项目和 xUnit 单元测试项目的解决方案。单元测试在我的本地计算机上正确运行(使用 Visual Studio 运行程序和 dotnet test 进行测试，但我无法使其与 Azure 版本一起使用。

Azure 中单元测试步骤的输出如下:

##[section]Starting: Test Assemblies
==============================================================================
Task         : Visual Studio Test
Description  : Run unit and functional tests (Selenium, Appium, Coded UI test, etc.) using the Visual Studio Test (VsTest) runner. Test frameworks that have a Visual Studio test adapter such as MsTest, xUnit, NUnit, Chutzpah (for JavaScript tests using QUnit, Mocha and Jasmine), etc. can be run. Tests can be distributed on multiple agents using this task (version 2).
Version      : 2.147.0
Author       : Microsoft Corporation
Help         : [More information](https://go.microsoft.com/fwlink/?LinkId=835764)
==============================================================================
SystemVssConnection exists true
SystemVssConnection exists true
SystemVssConnection exists true
Running tests using vstest.console.exe runner.
======================================================
Test selector : Test assemblies
Test filter criteria : null
Search folder : D:\a\1\s
VisualStudio version selected for test execution : latest
Run in parallel : false
Run in isolation : false
Path to custom adapters : null
Other console options : null
Code coverage enabled : false
Diagnostics enabled : true
SystemVssConnection exists true
Run the tests locally using vstest.console.exe
========================================================
Test selector : Test assemblies
Test assemblies : **\release\netcoreapp2.2\*test*.dll,!**\obj\**
Test filter criteria : null
Search folder : D:\a\1\s
Run settings file : D:\a\1\s
Run in parallel : false
Run in isolation : false
Path to custom adapters : null
Other console options : null
Code coverage enabled : false
Diagnostics enabled : false
Rerun failed tests: false
VisualStudio version selected for test execution : latest
========================================================
======================================================
[command]"C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\CommonExtensions\Microsoft\TestWindow\vstest.console.exe" @D:\a\_temp\e481a311-390d-11e9-aa01-4f08eeab4c37.txt
Microsoft (R) Test Execution Command Line Tool Version 15.9.0
Copyright (c) Microsoft Corporation.  All rights reserved.

vstest.console.exe 
"D:\a\1\s\tests\ContosoUniversity.Tests\bin\Release\netcoreapp2.2\ContosoUniversity.Tests.dll"
"D:\a\1\s\tests\ContosoUniversity.Tests\bin\Release\netcoreapp2.2\xunit.runner.visualstudio.dotnetcore.testadapter.dll"
/logger:"trx"
/TestAdapterPath:"D:\a\1\s"
Starting test execution, please wait...
Test run will use DLL(s) built for framework .NETCoreApp,Version=v2.2 and platform X86. Following DLL(s) do not match framework/platform settings.
xunit.runner.visualstudio.dotnetcore.testadapter.dll is built for Framework 1.0 and Platform AnyCPU.
Go to http://go.microsoft.com/fwlink/?LinkID=236877&clcid=0x409 for more details on managing these settings.

[xUnit.net 00:00:00.00] xUnit.net VSTest Adapter v2.4.1 (64-bit .NET Core 4.6.27207.03)
[xUnit.net 00:00:04.36]   Discovering: ContosoUniversity.Tests
[xUnit.net 00:00:04.43]   Discovered:  ContosoUniversity.Tests
[xUnit.net 00:00:04.44]   Starting:    ContosoUniversity.Tests
[xUnit.net 00:00:04.93]   Finished:    ContosoUniversity.Tests
Passed   ContosoUniversity.Controllers.HomeControllerTest.Index_Renvoie_Le_Bon_Modele
Unable to find D:\a\1\s\tests\ContosoUniversity.Tests\bin\Release\netcoreapp2.2\xunit.runner.visualstudio.dotnetcore.testadapter.deps.json. Make sure test project has a nuget reference of package "Microsoft.NET.Test.Sdk".
Results File: D:\a\1\s\TestResults\VssAdministrator_fv-az561_2019-02-25_14_59_22.trx

Total tests: Unknown. Passed: 1. Failed: 0. Skipped: 0.
Test Run Aborted.
Test execution time: 8.5546 Seconds
##[warning]Vstest failed with error. Check logs for failures. There might be failed tests.
##[error]Error: The process 'C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\CommonExtensions\Microsoft\TestWindow\vstest.console.exe' failed with exit code 1
##[error]VsTest task failed.
##[section]Async Command Start: Publish test results
Publishing test results to test run '1000118'
Test results remaining: 1. Test run id: 1000118
Published Test Run : https://orkeis-proj1.visualstudio.com/MyFirstProject_Test/_TestManagement/Runs#runId=1000118&_a=runCharts
##[section]Async Command End: Publish test results
##[section]Finishing: Test Assemblies

我无法理解我应该如何拥有丢失的 json 文件。该错误建议安装 Microsoft.NET.Test.Sdk，但我确实在我的项目文件中引用了它:

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>netcoreapp2.2</TargetFramework>

    <IsPackable>false</IsPackable>

    <RootNamespace>ContosoUniversity</RootNamespace>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.9.0" />
    <PackageReference Include="xunit" Version="2.4.1" />
    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.1">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
    </PackageReference>
  </ItemGroup>

  <ItemGroup>
    <ProjectReference Include="..\..\src\ContosoUniversity.csproj" />
  </ItemGroup>

</Project>

因此，任何有关我所缺少内容的提示将不胜感激。

Answer 1

问题在于，查找测试程序集的默认文件模式 (*test*.dll) 也确实包含 xUnit 的核心程序集(名为 xunit.runner.visualstudio.dotnetcore.testadapter .dll)，这使测试系统感到困惑。

要解决该问题，我所要做的就是使用更具体的模式(例如 *tests.dll)，或排除所有测试适配器程序集(!**/*testadapter.dll)。 dll)。

更新:官方 xUnit 文档已更新，以帮助避免此问题 ( https://xunit.net/docs/getting-test-results-in-azure-devops )