trx-analysis Skill

Source

• Creator: microsoft
• Repository: microsoft/vstest
• Skill file: .github/skills/trx-analysis/SKILL.md

What it does

Parse and analyze Visual Studio TRX test result files. Use when asked about slow tests, test durations, test frequency, flaky tests, failure analysis, or test execution patterns from TRX files.

Skill instructions

TRX Test Results Analysis Parse .trx files (Visual Studio Test Results XML) to answer questions about test performance, frequency, failures, and patterns. TRX File Format TRX files use XML namespace http://microsoft.com/schemas/VisualStudio/TeamTest/2010. Key elements: - TestRun.Results.UnitTestResult — individual test executions with testName, duration (HH:mm:ss.fffffff), outcome (Passed/Failed/NotExecuted) - TestRun.TestDefinitions.UnitTest — test metadata including class and method info - TestRun.ResultSummary — aggregate pass/fail/skip counts Loading a TRX File powershell [xml]$trx = Get-Content "path/to/file.trx" $results = $trx.TestRun.Results.UnitTestResult Common Queries Top N slowest tests powershell $results | ForEach-Object { [PSCustomObject]@{ Test = $.testName Seconds = [TimeSpan]::Parse($.duration).TotalSeconds Outcome = $.outcome } } | Sort-Object Seconds -Descending | Select-Object -First 25 | Format-Table @{L='Sec';E={'{0,6:N1}' -f $.Seconds}}, Outcome, Test -AutoSize