Pester test results on Azure DevOps

You might or might not know this. You can publish test results from common unit test frameworks to Azure DevOps so that they’re associated with a build. Two days ago, I mentioned an alternative to Postman for creating functional API tests using Powershell and Pester (unit-testing module for Powershell). Here’s a quick guide on how to publish Pester test results to Azure DevOps.

The Set-Up

The official documentation talk about the solution. Here’s the concrete implementation.

First, when you run the pipeline task for Pester, you have to also generate test results. Pester supports various formats including NUnit format.

steps:
- powershell: |
     Install-Module -Name Pester -Force
     Invoke-Pester -EnableExit -OutputFile ./test-results.xml -OutputFormat NUnitXml

Then, once the NUnit test results are generated, use the PublishTestResults task to publish the test results to Azure DevOps.

- task: PublishTestResults@2
  inputs:
    testResultsFormat: 'NUnit'
    testResultsFiles: '**/TEST-*.xml'  

Tada! 🎊

That’s it.