Filenames in JaCoCo report seem to be wrong

[JohnnyDoesStuff]

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• I have tested using the latest version of Pester. See Installation and update guide.

What is the issue?

We create code coverage files and want to visualize the results in Jenkins (https://www.jenkins.io/) by using the coverage plugin (https://plugins.jenkins.io/coverage/). After an update of that plugin results could no longer be parsed by it and it seems that the xml file produced by Pester is wrong (Discussed here: https://issues.jenkins.io/browse/JENKINS-76044)

Results look e.g. like this:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE report PUBLIC "-//JACOCO//DTD Report 1.1//EN" "report.dtd"[]>
<report name="Pester (08/28/2025 05:08:10)">
  <sessioninfo id="this" start="1756357668799" dump="1756357690892" />
  <package name="myRepo/someDirectory/anotherDirectory">
    <class name="myRepo/someDirectory/anotherDirectory/foo" sourcefilename="someDirectory/anotherDirectory/foo.ps1">
      <method name="<script>" desc="()" line="16">
        <counter type="INSTRUCTION" missed="0" covered="31" />
        <counter type="LINE" missed="0" covered="22" />
        <counter type="METHOD" missed="0" covered="1" />
      </method>
      <counter type="INSTRUCTION" missed="0" covered="31" />
      <counter type="LINE" missed="0" covered="22" />
      <counter type="METHOD" missed="0" covered="1" />
      <counter type="CLASS" missed="0" covered="1" />
    </class>
    <sourcefile name="someDirectory/anotherDirectory/foo.ps1">
      <line nr="16" mi="0" ci="1" mb="0" cb="0" />
      <line nr="18" mi="0" ci="1" mb="0" cb="0" />
      <line nr="20" mi="0" ci="2" mb="0" cb="0" />
  // more lines
      <counter type="INSTRUCTION" missed="0" covered="31" />
      <counter type="LINE" missed="0" covered="22" />
      <counter type="METHOD" missed="0" covered="1" />
      <counter type="CLASS" missed="0" covered="1" />
    </sourcefile>
    <counter type="INSTRUCTION" missed="0" covered="31" />
    <counter type="LINE" missed="0" covered="22" />
    <counter type="METHOD" missed="0" covered="1" />
    <counter type="CLASS" missed="0" covered="1" />
  </package>
  // more packages
  

Expected Behavior

I'm not an expert for JaCoCo but i assume that this line
<class name="myRepo/someDirectory/anotherDirectory/foo" sourcefilename="someDirectory/anotherDirectory/foo.ps1">

Should instead look like this
<class name="myRepo/someDirectory/anotherDirectory/foo" sourcefilename="foo.ps1">

Probably other occurences of sourcefile also need to be adapted

Steps To Reproduce

1. Create 2 modules (or directories)
2. In each of those we need some code that does stuff
3. Then each needs a file to run tests on those
4. The tests are executed with a configuration like that:

Import-Module Pester
$config = [PesterConfiguration]@{
	CodeCoverage = @{
	    Enabled = $true
		Path = @(
			".\module1\public\Start-Foo.ps1"
			".\module2\public\Start-Bar.ps1"
		)
		OutputPath = ".\Temp\coverage.xml"
	}
	Run = @{
		Path = @(
			".\module1\Module1.Unit.Tests.ps1"
			".\module2\Module2.Unit.Tests.ps1"
		)
		PassThru = $true
	}
	Output = @{
		Verbosity = "Detailed"
	}
}
Invoke-Pester -Configuration $config

Describe your environment

Pester version : 5.7.1 C:\Users\z003sk5z\Documents\PowerShell\Modules\Pester\5.7.1\Pester.psm1
PowerShell version : 7.5.4
OS version : Microsoft Windows NT 10.0.22631.0

Possible Solution?

Probably something like this is needed to get the file names:
Split-Path $fileName -Leaf

Probably more than this naive approach is needed.

[uhafner]

Yes exactly! The problem is, that when parsing the XML there is no obvious way for me to determine which of the parent folders of sourcefilename are required. So I am currently ignoring all parent folders and using the raw file name.

[nohwnd]

Please try if OutputFormat = "CoverageGutters" will work for you, I think that outputs paths similar to what you describe.

https://github.com/pester/Pester/blob/main/src/csharp/Pester/CodeCoverageConfiguration.cs#L44C111-L44C126

[JohnnyDoesStuff]

Please try if OutputFormat = "CoverageGutters" will work for you, I think that outputs paths similar to what you describe.

https://github.com/pester/Pester/blob/main/src/csharp/Pester/CodeCoverageConfiguration.cs#L44C111-L44C126

That seems to work. I ran a pipeline with that option set and coverage plugin version 2.3036.v90d485b_810c6. That way i got the same functionality as before, so that's a solution for me.

I don't know if this issue then needs to stay open / is useful, so i'm not closing it now.

@uhafner sorry for bothering you then. At least it looks like updating the plugin on our Jenkins should work now.

[nohwnd]

I think the "coverage gutters" format is more useful as default. Keeping this open so we can test it and use as default for v6.