Normally, when invoking a simple test script, we just need the Path parameter. Invoke-Pester -Path C:\Test.ps1. However, when passing parameters to the test script, we must call Invoke-Pester a little ...

Let's now add the OutputFormat and OutputFile parameters to send Pester's test results to an nUnit-compatible XML file. Invoke-Pester -Path C:\IISWebSite.Tests.ps1 -OutputFormat NUnitXml -OutputFile C ...

This allows unit testing to a degree of powershell task code. This still requires accurate mocking of the passing of parameters to the powershell scripts. First unit tests that should be implemented.