为什么Visual Studio 2015/2017/2019 Test Runner无法发现我的xUnit v2测试

从您的查询中消除发现例外；转到输出窗口（Ctrl-Alt-O），然后将显示输出从下拉菜单（Shift-Alt-S）切换为 Tests ，并确保没有发现例外

Eliminate discovery exceptions from your inquiries; go to the output Window (Ctrl-Alt-O), then switch the show output from dropdown (Shift-Alt-S) to Tests and make sure there are no discovery exceptions

测试|测试设置|默认处理器体系结构如果您的测试特定于x86 / x64并且发现触发了误码，则可以提供帮助-相关异常，即不是 AnyCpu

Test|Test settings|Default processor architecture can help if your tests are x86/x64 specific and discovery is triggering bittedness-related exceptions, i.e. not AnyCpu

如该答案中所建议的（如果该技术有用，请对其进行投票） 运行桌面控制台运行程序（说明）可以很好地进行交叉检查，以消除其他可能性，例如损坏的配置文件：-

As suggested in this answer(upvote it if the technique helps) running the desktop console runner (instructions) can be a good cross check to eliminate other possibilities, e.g. mangled config files:-

packages\xunit.runner.console.2.2.0\tools\ xunit.console< tests.dll>

注意不推荐使用xunit.runner.console 包-当您在VS中工作时，您可以进行 dotnet测试在CI中运行它们上下文也是如此

NOTE The xunit.runner.console package is deprecated - when you get stuff working in VS, you'll be able to have dotnet test run them in CI contexts too

阅读文档-它是全面，最新的，包括故障排除信息并执行PR：-

Go read the documentation - it's comprehensive, up to date, includes troubleshooting info and takes PRs:-

重要说明：如果您以前安装过xUnit Visual Studio Runner VSIX（扩展），则必须首先将其卸载。现在仅通过NuGet分发Visual Studio运行程序。要删除它，请转到工具> 扩展和更新。滚动到列表的底部，如果已安装xUnit，则将其卸载。这将迫使您重新启动Visual Studio。

Important note: If you've previously installed the xUnit Visual Studio Runner VSIX (Extension), you must uninstall it first. The Visual Studio runner is only distributed via NuGet now. To remove it, to go Tools > Extensions and Updates. Scroll to the bottom of the list, and if xUnit is installed, uninstall it. This will force you to restart Visual Studio.

如果发现或运行测试时遇到问题，则可能是Visual Studio内部运行程序缓存损坏的受害者。若要清除此缓存，请关闭Visual Studio的所有实例，然后删除文件夹％TEMP％\VisualStudioTestExplorerExtensions 。还要确保您的项目仅链接到Visual Studio运行程序NuGet包的单个版本（ xunit.runner.visualstudio ）。

If you're having problems discovering or running tests, you may be a victim of a corrupted runner cache inside Visual Studio. To clear this cache, shut down all instances of Visual Studio, then delete the folder %TEMP%\VisualStudioTestExplorerExtensions. Also make sure your project is only linked against a single version of the Visual Studio runner NuGet package (xunit.runner.visualstudio).

以下步骤对我有用：

（仅如果您怀疑机器上有严重的混乱情况-通常，更常见的情况是尚未安装Visual Studio集成）

DEL％TEMP％\VisualStudioTestExplorerExtensions 如建议：-

PS> del $ env：TEMP\VisualStudioTestExplorerExtensions

安装NuGet软件包 xunit.runner.visualstudio 在所有测试项目中

Install the NuGet Package xunit.runner.visualstudio in all test projects

• Paket：

• Paket:

您需要在 paket.dependencies 中添加以下内容：

You need to end up with the following in your paket.dependencies:

nuget xunit.runner.visualstudio version_in_path：true

注意 version_in_path：true 位很重要

Note the version_in_path: true bit is important

Nuget：转到程序包管理器控制台（Alt-T，N，O ）和

Nuget: Go to Package Manager Console (Alt-T,N,O) and