Mat*_*t W 12 unit-testing vscode-settings dotnet-test vscode-debugger
本文介绍如何设置 VS Code 设置以将调试目标指向单元测试项目的构建输出。因此,我将我的设置如下:
{
"explorer.confirmDragAndDrop": false,
"git.allowForcePush": true,
"git.autofetch": true,
"window.zoomLevel": 0,
"csharp.unitTestDebuggingOptions": {
"sourceFileMap": {
"C:\\git\\MsTester\\bin\\Debug\\netcoreapp2.1": "C:\\git\\MsTester\\bin\\Debug\\netcoreapp2.1"
}
},
"files.autoSave": "afterDelay",
"files.exclude": {
"**/bin": true,
"**/node_modules": true,
"**/obj": true
},
"csharpfixformat.style.spaces.insideEmptyBraces": false,
"csharpfixformat.style.braces.allowInlines": false,
"csharpfixformat.style.spaces.beforeParenthesis": false,
"csharpfixformat.style.spaces.afterParenthesis": false,
"csharp.format.enable": false,
"extensions.ignoreRecommendations": true
}
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但是,我不确定如何设置launch.json以启动dotnet test它以便它可以附加调试器。
这是我目前所拥有的:
{
"version": "0.2.0",
"configurations": [
{
"name": "MsTester",
"type": "coreclr",
"request": "launch",
"preLaunchTask": "build",
"program": "${workspaceFolder}/MsTester/bin/Debug/netcoreapp2.1/MsTester.dll",
"windows": {
"args": [
"--filter",
"TestCategory=lbshell",
"--logger",
"trx",
"--results-directory",
".\\TestResults",
"--settings",
".\\Features\\runsettings.xml"
],
},
"cwd": "${workspaceFolder}/MsTester",
"console": "internalConsole",
"stopAtEntry": false,
"internalConsoleOptions": "openOnSessionStart"
},
]
}
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是否可以选择告诉 VS Code 它需要执行dotnet test而不是执行dotnet run?
我希望这个页面会指出如何做到这一点,但事实并非如此。
zaj*_*jer 31
所有功劳均归功于@Lance U. Matthews,他将本文作为对以下问题答案的评论发表:如何在 VSCode 中调试 MSTest?。我将其重新发布为正确答案,因为他已经一年没有这样做了。
以下答案已在 VSCode v1.62.3 和 dotnet 工具 v5.0.403 上进行了测试。
假设您有一个结构如下的 .NET 解决方案:
mysolution.sln
tests\
|---> tests.csproj
|---> UnitTest1.cs
.vscode\
|---> launch.json
|---> tasks.json
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将以下内容复制到tasks.json文件中:
mysolution.sln
tests\
|---> tests.csproj
|---> UnitTest1.cs
.vscode\
|---> launch.json
|---> tasks.json
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并将其写入launch.json文件中:
{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "2.0.0",
"tasks": [
{
"label": ".NET Core Test with debugger",
"type": "process",
"isBackground": true,
"command": "dotnet",
"args": [ "test" ],
"options":
{
"cwd": "${workspaceFolder}/tests",
"env":
{
"VSTEST_HOST_DEBUG": "1"
},
},
"group": "test", "presentation":
{
"echo": true,
"reveal": "always",
"focus": false,
"panel": "shared"
},
"problemMatcher": []
},
]
}
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现在在文件中的任意位置设置断点UnitTest1.cs并运行.NET Core Test with debugger任务(终端->运行任务...)。测试执行命令行工具应该启动,并且终端底部应该类似于:
你Process Id肯定会有所不同,但这是预期的行为。
现在您需要切换到“运行和调试”选项卡(ctrl+shift+d)并选择“.NET Core Attach”(它应该位于 VSCode 的左上角)。提供之前在终端中出现的进程 ID:
现在单击 F5 一次,您应该到达一个断点。
这可能无法解决您完全传递参数的问题,但可以解决将 runsettings 参数传递给正在调试的代码的问题。使用这种方法,我可以在运行调试器时将 runsettings 的内容传递给我的代码(即当我单击方法上方的“调试测试”时):
我最终做的是这样的:
首先,TestContext如果密钥在设置文件中不可用,我编写了一些代码,这些代码将从设置文件(通过)或从用户环境中读取,即:
[ClassInitialize]
public static void TestClassInitialize(TestContext context)
{
v = Settings.GetSettingValueFromContextOrEnvironment("v", context);
}
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下面是实现GetSettingValueFromContextOrEnvironment:
/// <summary>
/// Attempts to read a setting value from the context (populated through runsettings). If the
/// key is not present in the context, the value will be read from the user environment variable
/// instead.
///
/// This allows running the unit test code in VSCode debugger that currently doesn't seem to allow
/// passing runsettings file to the DLL.
/// </summary>
/// <param name="name"></param>
/// <param name="context"></param>
/// <returns></returns>
public static String GetSettingValueFromContextOrEnvironment(string name, TestContext context){
if (context.Properties.ContainsKey(name)){
return context.Properties[name].ToString();
} else {
String envVar = Environment.GetEnvironmentVariable(name, System.EnvironmentVariableTarget.User);
if (envVar == null){
throw new Exception(String.Format("Environment variable '{0}' was not available neither in the context file nor in the environment.", name));
} else {
return envVar;
}
}
}
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然后我编写了一个 Powershell,它将读取我的设置文件来解析参数并将它们设置为用户环境变量,如下所示:
<# This script updates user environment variables with parameters stored in *.runsettings file that is provided to it as the only argument on the command line.
Example usage:
.\set_settings_env.ps1 local.runsettings
#>
param (
[Parameter(Mandatory=$true)][string]$settings_file
)
[xml]$xml = Get-Content $settings_file
foreach( $parameter in $xml.RunSettings.TestRunParameters.Parameter)
{
write-host("Setting environment variable: " + $parameter.name)
[Environment]::SetEnvironmentVariable($parameter.name, $parameter.value, "User")
}
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因此,现在我既可以使用特定的 runsettings 文件从命令行运行代码,也可以通过运行脚本来设置环境变量进行调试。
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