Visual Studio 2022 Community Edition 如何从单元测试中获取代码覆盖率？

Question

我已经下载了最新的 VS2022 v17.1 社区版，但它没有内置代码覆盖率。我习惯了企业版，我能找到的只有社区版的付费选项。

是否可以在 VS2022 社区版中免费进行代码覆盖？

Answer 1

服务器构建历史方式...

XUnit 测试项目带有 NuGet 插件Coverlet.Collector:

这不需要在任何项目中安装，您需要做的就是运行我已经制作成Powershell脚本的这些步骤：

ExecCodeCoverage.ps1

# PURPOSE: Automates the running of Unit Tests and Code Coverage
# REF: 

# If running outside the test folder
#cd E:\Dev\XYZ\src\XYZTestProject

# This only needs to be installed once (globally), if installed it fails silently: 
dotnet tool install -g dotnet-reportgenerator-globaltool

# Save currect directory into a variable
$dir = pwd

# Delete previous test run results (there's a bunch of subfolders named with guids)
Remove-Item -Recurse -Force $dir/TestResults/

# Run the Coverlet.Collector (this is an NuGet included with XUnit Test Projects)
$output = [string] (& dotnet test --collect:"XPlat Code Coverage" 2>&1)
Write-Host "Last Exit Code: $lastexitcode"
Write-Host $output

# Extract the GUID from the Output eg, 
#"Attachments:   E:\Dev\XYZ\src\XYZTestProject\TestResults[=10=]f26f16d-bbe8-463b-856b-6d4fbee673bd\coverage.cobertura.xml Passed!"  

$i = $output.LastIndexOf("TestResults") + 11
$j = $output.LastIndexOf("coverage")
$cmdGuid = $output.SubString($i,$j - $i - 1)
Write-Host $cmdGuid 

# Delete previous test run reports - note if you're getting wrong results do a Solution Clean and Rebuild to remove stale DLLs in the bin folder
Remove-Item -Recurse -Force $dir/coveragereport/

# To keep a history of the Code Coverage we need to use the argument:
# -historydir:SOME_DIRECTORY 
if (!(Test-Path -path $dir/CoverageHistory)) {  
 New-Item -ItemType directory -Path $dir/CoverageHistory
}

# Generate the Code Coverage HTML Report
reportgenerator -reports:"$dir/TestResults/$cmdGuid/coverage.cobertura.xml" -targetdir:"coveragereport" -reporttypes:Html -historydir:$dir/CoverageHistory 

# Open the Code Coverage HTML Report (if running on a WorkStation)
$osInfo = Get-CimInstance -ClassName Win32_OperatingSystem
if ($osInfo.ProductType -eq 1) {
(& "$dir/coveragereport/index.html")
}

将其放入测试项目中：

效果还不错（免费）：

您可以向下钻取以查看突出显示的线路覆盖范围，它只是不如企业版强大或集成：

我更新了脚本以支持历史记录：

Answer 2

你有与 VS 2022 一起使用的 Fine Code Coverage，你可以在这里访问它 https://github.com/FortuneN/FineCodeCoverage/releases 然后点击 2022 文件。

之后，它只是一个安装在计算机上的插件，每个项目都可以使用它，而无需逐个项目地添加它。

Visual Studio 2022 Community Edition 如何从单元测试中获取代码覆盖率？

How to get Code Coverage from Unit Tests in Visual Studio 2022 Community Edition?

unit-testing

code-coverage

moq

xunit

visual-studio