C# 错误：VS2017实时单元测试-仅负'；s-不'；行不通

TL；博士编辑6:我已经缩小了范围，并提供了5个步骤来重现问题/bug

创建VS2017 c#控制台应用程序（.Net完整框架）

向Program.cs添加一个方法，并公开该类：

右键单击添加方法并选择创建单元测试：

使用以下设置创建具有测试的新单元测试项目：

添加单元测试

• 测试菜单>实时单元测试>开始

• AddTest（）上的上下文菜单

现在将Add的+符号更改为-

现场单元测试工作，将-符号更改回+，现场测试通过

现在添加对Nuget DLL的引用（任何人都可以）-实时单元测试不再有效！或者干脆关闭解决方案，重新打开它，实时单元测试就不再工作了

---

我已经设置了一个MSUnitTestV2项目，并开始了实时单元测试。我正在使用一个WebAPI2.Net项目（完整框架v4.5.2）

我到处都能看到负号，但没有勾号或叉号

我改变代码和他们在中做的一样，时钟出现在负号上，但是什么都没有

调试单元测试时，单元测试将通过：

当我将鼠标悬停在蓝色减号上时，消息是“被0个测试覆盖”

我发现您需要MSTest.TestAdapter和MSTest.TestFramework，正如我所做的，并且正在引用V1.18：

• Microsoft.VisualStudio.TestPlatform.TestFramework
• Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions

有一群beta测试人员报告了相同的问题：

所有帖子都已解决或无法修复

这个问题。我尝试从Gac中删除Microsoft.VisualStudio.QualityTools.UnitTestFramework，当我尝试从C:\Windows\assembly中卸载时，访问被拒绝，并通过开发人员命令提示符进行卸载：

GacUtil /u Microsoft.VisualStudio.QualityTools.UnitTestFramework

结果：

程序集：Microsoft.VisualStudio.QualityTools.UnitTestFramework，版本=10.0.0.0，区域性=中性，PublicKeyToken=b03f5f7f11d50a3a，processorArchitecture=MSIL 无法卸载：一个或多个应用程序需要程序集

有人能帮我进行实时单元测试吗？

编辑1:

在VS>Tools>Options>liveunittesting中，我将日志记录改为Verbose

查看输出，我看到一条警告：

[15:48:26.521详细]-TestDriver-TestDiscoveryr日志消息：警告-配置系统未能初始化

在中给出了一些答案之后，我仍然无法摆脱“配置系统未能初始化”-不确定这是否是一条红鲱鱼，这是迄今为止我发现的唯一线索

编辑2:

我以管理员的身份运行VS2017，摆脱了“配置系统无法初始化”的问题。不幸的是，以管理员的身份运行并没有什么不同，它仍然不工作，但没有出现任何异常

---

这是详细的日志。有趣的是，“准备开始测试发现”看起来像是在我包含的x86测试中发现的

然而，它显然无法发现测试；“发现0个测试”

编辑3:

我今天查看了ProcessMonitor跟踪。。没有什么特别突出的，我可能错过了一些东西，但我开始觉得这是一个bug，而不是配置问题

我在一个非常封闭的环境中工作，所以可能是在vs2017安装期间有什么东西被阻止了。我知道Unity3D域没有被列入下载的白名单。尽管安装了所有Visual Studio核心的Microsoft stuff。我开始用尽诊断故障排除策略。任何想法都欢迎

编辑4:

今天早上，我决定从GAC中删除

Microsoft.VisualStudio.QualityTools.UnitTestFramework

DLL。我是这样做的：

这导致找到了一个潜在的根本原因。我开始看到实时单元测试日志输出：

[09:44:59.053 Verbose] - BuildManager - C:\Program Files x86\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(3245,5): error MSB3491: Could not write lines to file "C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\i\XYZ.API.MiscService\Debug\CoreCompileInputs.cache". Access to the path 'C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\i\XYZ.API.MiscService\Debug\CoreCompileInputs.cache' is denied.   
[09:44:59.053 Verbose] - BuildManager - C:\Program Files x86\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(4874,5): error MSB3491: Could not write lines to file "C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\i\XYZ.API.MiscService\Debug\XYZ.API.MiscService.csproj.FileListAbsolute.txt". Access to the path 'C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\i\XYZ.API.MiscService\Debug\XYZ.API.MiscService.csproj.FileListAbsolute.txt' is denied.

我给自己所有这些目录的权限，只是为了排除任何权限问题：

这仍然不起作用，但是我似乎离实际单元测试越来越近了，因为实际单元测试需要更长的时间才能不起作用（即显示在负号顶部的时钟需要更长的时间来处理）

然后我又试了一次ProcMon，它显示了一些有趣的日志，但没有冒烟的枪

以下是当前详细日志：

[10:22:07.363 Info] - BuildManager - Build completed (succeeded).
[10:22:07.363 Verbose] - BuildManager - Interrupting build queue -> switching 'build' and 'test' directories.
[10:22:07.363 Verbose] - BuildManager - New 'test' directory: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\1\
[10:22:07.363 Verbose] - BuildManager - New 'build' directory: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\0\
[10:22:07.363 Verbose] - Aggregator - [Workflow 4] Received BuildEvent.
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.Tests\bin\Debug\XYZ.API.Tests.dll
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.AccountClientService\bin\Debug\XYZ.API.AccountClientService.dll
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API\bin\XYZ.API.dll
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.Helpers\bin\Debug\XYZ.API.Global.dll
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.MiscService\bin\Debug\XYZ.API.MiscService.dll
[10:22:07.363 Verbose] - Aggregator - file: 'C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\Repositories\ValueRepository.cs - C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj'
[10:22:07.363 Verbose] - Aggregator - Skip reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.Tests\bin\Debug\XYZ.API.Tests.dll with MVID c96c0f4b-b21e-47be-a71e-97ebf8a3d493 since we already have this information from a previous build
[10:22:07.363 Verbose] - Aggregator - Skip reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.AccountClientService\bin\Debug\XYZ.API.AccountClientService.dll with MVID 6772f896-04ab-4804-bb18-3ed2c7aeb9b9 since we already have this information from a previous build
[10:22:07.363 Verbose] - Aggregator - Skip reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API\bin\XYZ.API.dll with MVID 9c862440-c16a-4efe-8574-76e8c1453c4d since we already have this information from a previous build
[10:22:07.363 Verbose] - Aggregator - Skip reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.Helpers\bin\Debug\XYZ.API.Global.dll with MVID a8899d5d-4730-46bf-b4f2-3c2b1b75b0b1 since we already have this information from a previous build
[10:22:07.363 Verbose] - Aggregator - Removing MVID f337ca44-aae6-42ca-8df5-3776ff962372 for project C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj from the file span cache
[10:22:07.363 Verbose] - Aggregator - Adding MVID 8e944276-0eec-43f4-aff3-07e40f8611dc for project C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj to the file span cache
[10:22:07.363 Verbose] - Aggregator - Calculating the set of tests that cover 0 files
[10:22:07.363 Verbose] - Aggregator - Reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.MiscService\bin\Debug\XYZ.API.MiscService.dll with MVID 8e944276-0eec-43f4-aff3-07e40f8611dc
[10:22:07.363 Verbose] - Aggregator - Adding 3 methods from 'C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\Repositories\ValueRepository.cs - C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj' to the coverage aggregation work list
[10:22:07.363 Verbose] - Aggregator - Calculating the set of tests that cover 1 files
[10:22:07.363 Verbose] - Aggregator - [Workflow 4] Sending TestRequestEvent with 5 assemblies and 0 tests
[10:22:07.363 Verbose] - TestDriver - [Workflow 4] Received TestRequestEvent
[10:22:07.363 Verbose] - TestDriver - [Workflow 4] Preparing to start test discovery (X64: 0, X86: 1).
[10:22:07.363 Verbose] - TestDriver - [Workflow 4] Start discovering tests from group 0, which contains 1 assemblies.
[10:22:07.834 Verbose] - TestDriver - [Workflow 4] Finished discovering test from group 0.
[10:22:07.834 Verbose] - TestDriver - [Workflow 4] Discovered 0 tests from XYZ.API.MiscService\bin\Debug\XYZ.API.MiscService.dll, updating cached data.
[10:22:07.834 Verbose] - TestDriver - [Workflow 4] Notify Aggregator about completion of test run. (Passed: 0, Failed: 0, Run succeeded: True)
[10:22:07.834 Verbose] - Aggregator - [Workflow 4] Received TestResponseEvent (TestRunCompleted)
[10:22:07.834 Verbose] - Aggregator - [Workflow 4] Coverage data for 0 tests was received during this workflow
[10:22:07.834 Verbose] - Aggregator - Starting coverage aggregation cycle - work list has 3 methods
[10:22:07.834 Verbose] - Aggregator - Finished coverage aggregation cycle - work list had 3 methods of which 3 methods were defined in 5 open files
[10:22:07.834 Verbose] - BuildManager - Allow to send a single build event.
[10:22:07.834 Verbose] - BuildManager - Interrupting build queue -> no new assemblies.
[10:22:07.834 Verbose] - Aggregator - Sending FileCoverageResult for 'C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\Repositories\ValueRepository.cs - C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj'
[10:22:07.834 Verbose] - Aggregator - [Workflow 4] Sending TestRunCompletedEvent
[10:22:07.850 Verbose] - StatusMargin - Received file coverage result

编辑5:

根据这个博客：

Q：为什么在我从实时测试集中包括或排除测试之后什么都没有发生？

答：这是一个我们无法在Visual Studio 2017 15.0版中修复的已知问题。它现在已在Visual Studio 2017 15.2版中修复

原来我有VisualStudio/15.0.0+26228.9。升级到Visual Studio 2017（v15.2）不会解决此问题

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我已经向大家报告了这个问题，并将向大家通报。没有正确地报告环境已锁定。

更新：MS说它在15.3.2中已修复

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好的，我已经缩小了范围

当您向单元测试项目添加NuGet引用时，它会添加一个packages.config，并且在某些情况下可能会添加一个App.config文件

当我添加Oracle.ManagedDataAccess时，以下内容将添加到App.Config中：

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <!--<configSections>
    <section name="oracle.manageddataaccess.client"
      type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.122.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
    </configSections>-->
  <system.data>
    <DbProviderFactories>
      <remove invariant="Oracle.ManagedDataAccess.Client"/>
      <add name="ODP.NET, Managed Driver" invariant="Oracle.ManagedDataAccess.Client" description="Oracle Data Provider for .NET, Managed Driver"
        type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.122.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
    </DbProviderFactories>
  </system.data>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <publisherPolicy apply="no"/>
        <assemblyIdentity name="Oracle.ManagedDataAccess" publicKeyToken="89b483f429c47342" culture="neutral"/>
        <bindingRedirect oldVersion="4.121.0.0 - 4.65535.65535.65535" newVersion="4.122.1.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <oracle.manageddataaccess.client>
    <version number="*">
      <dataSources>
        <dataSource alias="SampleDataSource" descriptor="(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORCL))) "/>
      </dataSources>
    </version>
  </oracle.manageddataaccess.client>
</configuration>

请注意我是如何注释掉的，纯粹是通过一个消除过程

[09:44:59.053 Verbose] - BuildManager - C:\Program Files x86\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(3245,5): error MSB3491: Could not write lines to file "C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\i\XYZ.API.MiscService\Debug\CoreCompileInputs.cache". Access to the path 'C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\i\XYZ.API.MiscService\Debug\CoreCompileInputs.cache' is denied.   
[09:44:59.053 Verbose] - BuildManager - C:\Program Files x86\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\Microsoft.Common.CurrentVersion.targets(4874,5): error MSB3491: Could not write lines to file "C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\i\XYZ.API.MiscService\Debug\XYZ.API.MiscService.csproj.FileListAbsolute.txt". Access to the path 'C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\i\XYZ.API.MiscService\Debug\XYZ.API.MiscService.csproj.FileListAbsolute.txt' is denied.

[10:22:07.363 Info] - BuildManager - Build completed (succeeded).
[10:22:07.363 Verbose] - BuildManager - Interrupting build queue -> switching 'build' and 'test' directories.
[10:22:07.363 Verbose] - BuildManager - New 'test' directory: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\1\
[10:22:07.363 Verbose] - BuildManager - New 'build' directory: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\0\
[10:22:07.363 Verbose] - Aggregator - [Workflow 4] Received BuildEvent.
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.Tests\bin\Debug\XYZ.API.Tests.dll
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.AccountClientService\bin\Debug\XYZ.API.AccountClientService.dll
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API\bin\XYZ.API.dll
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.Helpers\bin\Debug\XYZ.API.Global.dll
[10:22:07.363 Verbose] - Aggregator - assembly: C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.MiscService\bin\Debug\XYZ.API.MiscService.dll
[10:22:07.363 Verbose] - Aggregator - file: 'C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\Repositories\ValueRepository.cs - C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj'
[10:22:07.363 Verbose] - Aggregator - Skip reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.Tests\bin\Debug\XYZ.API.Tests.dll with MVID c96c0f4b-b21e-47be-a71e-97ebf8a3d493 since we already have this information from a previous build
[10:22:07.363 Verbose] - Aggregator - Skip reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.AccountClientService\bin\Debug\XYZ.API.AccountClientService.dll with MVID 6772f896-04ab-4804-bb18-3ed2c7aeb9b9 since we already have this information from a previous build
[10:22:07.363 Verbose] - Aggregator - Skip reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API\bin\XYZ.API.dll with MVID 9c862440-c16a-4efe-8574-76e8c1453c4d since we already have this information from a previous build
[10:22:07.363 Verbose] - Aggregator - Skip reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.Helpers\bin\Debug\XYZ.API.Global.dll with MVID a8899d5d-4730-46bf-b4f2-3c2b1b75b0b1 since we already have this information from a previous build
[10:22:07.363 Verbose] - Aggregator - Removing MVID f337ca44-aae6-42ca-8df5-3776ff962372 for project C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj from the file span cache
[10:22:07.363 Verbose] - Aggregator - Adding MVID 8e944276-0eec-43f4-aff3-07e40f8611dc for project C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj to the file span cache
[10:22:07.363 Verbose] - Aggregator - Calculating the set of tests that cover 0 files
[10:22:07.363 Verbose] - Aggregator - Reading spans for assembly C:\XYZProjectCollection\Lincoln\.vs\XYZ.API\18528\t\XYZ.API.MiscService\bin\Debug\XYZ.API.MiscService.dll with MVID 8e944276-0eec-43f4-aff3-07e40f8611dc
[10:22:07.363 Verbose] - Aggregator - Adding 3 methods from 'C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\Repositories\ValueRepository.cs - C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj' to the coverage aggregation work list
[10:22:07.363 Verbose] - Aggregator - Calculating the set of tests that cover 1 files
[10:22:07.363 Verbose] - Aggregator - [Workflow 4] Sending TestRequestEvent with 5 assemblies and 0 tests
[10:22:07.363 Verbose] - TestDriver - [Workflow 4] Received TestRequestEvent
[10:22:07.363 Verbose] - TestDriver - [Workflow 4] Preparing to start test discovery (X64: 0, X86: 1).
[10:22:07.363 Verbose] - TestDriver - [Workflow 4] Start discovering tests from group 0, which contains 1 assemblies.
[10:22:07.834 Verbose] - TestDriver - [Workflow 4] Finished discovering test from group 0.
[10:22:07.834 Verbose] - TestDriver - [Workflow 4] Discovered 0 tests from XYZ.API.MiscService\bin\Debug\XYZ.API.MiscService.dll, updating cached data.
[10:22:07.834 Verbose] - TestDriver - [Workflow 4] Notify Aggregator about completion of test run. (Passed: 0, Failed: 0, Run succeeded: True)
[10:22:07.834 Verbose] - Aggregator - [Workflow 4] Received TestResponseEvent (TestRunCompleted)
[10:22:07.834 Verbose] - Aggregator - [Workflow 4] Coverage data for 0 tests was received during this workflow
[10:22:07.834 Verbose] - Aggregator - Starting coverage aggregation cycle - work list has 3 methods
[10:22:07.834 Verbose] - Aggregator - Finished coverage aggregation cycle - work list had 3 methods of which 3 methods were defined in 5 open files
[10:22:07.834 Verbose] - BuildManager - Allow to send a single build event.
[10:22:07.834 Verbose] - BuildManager - Interrupting build queue -> no new assemblies.
[10:22:07.834 Verbose] - Aggregator - Sending FileCoverageResult for 'C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\Repositories\ValueRepository.cs - C:\XYZProjectCollection\Lincoln\XYZ.API.MiscService\XYZ.API.MiscService.csproj'
[10:22:07.834 Verbose] - Aggregator - [Workflow 4] Sending TestRunCompletedEvent
[10:22:07.850 Verbose] - StatusMargin - Received file coverage result

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <!--<configSections>
    <section name="oracle.manageddataaccess.client"
      type="OracleInternal.Common.ODPMSectionHandler, Oracle.ManagedDataAccess, Version=4.122.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
    </configSections>-->
  <system.data>
    <DbProviderFactories>
      <remove invariant="Oracle.ManagedDataAccess.Client"/>
      <add name="ODP.NET, Managed Driver" invariant="Oracle.ManagedDataAccess.Client" description="Oracle Data Provider for .NET, Managed Driver"
        type="Oracle.ManagedDataAccess.Client.OracleClientFactory, Oracle.ManagedDataAccess, Version=4.122.1.0, Culture=neutral, PublicKeyToken=89b483f429c47342"/>
    </DbProviderFactories>
  </system.data>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <publisherPolicy apply="no"/>
        <assemblyIdentity name="Oracle.ManagedDataAccess" publicKeyToken="89b483f429c47342" culture="neutral"/>
        <bindingRedirect oldVersion="4.121.0.0 - 4.65535.65535.65535" newVersion="4.122.1.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <oracle.manageddataaccess.client>
    <version number="*">
      <dataSources>
        <dataSource alias="SampleDataSource" descriptor="(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=ORCL))) "/>
      </dataSources>
    </version>
  </oracle.manageddataaccess.client>
</configuration>

[11:42:17.584 Info] No supported test adapters are referenced by this solution. If you have a test project, add a NuGet reference to a test adapter corresponding to the test framework used in order to run the tests. If you already have the required NuGet reference in your test project, performing a NuGet restore may resolve the issue.