Baseline file in a subdirectory contains absolute paths

[annuh]

Q	A
PHPUnit version	12.0.6
PHP version	8.4.3
Installation Method	Composer

Summary

PHPUnit generates a baseline file that contains absolute paths, if the baseline file is written to a subdirectory.
This causes issues in CI, because the paths don't match.

This issue is probably related: #5920

Current behavior

This command creates a file containing absolute file paths:

vendor/bin/phpunit --generate-baseline tests/deprecations-baseline.xml

$ cat tests/deprecations-baseline.xml
<?xml version="1.0"?>
<files version="1">
 <file path="/var/www/html/tests/ExampleTest.php">
  <line number="28" hash="a4975a3769fa8b53b7712f2e2f709bf3c1424ec3">
   <issue>__</issue>
...

As mentioned above, when the deprecation file is created in the root directory, the file contains relative paths (as expected).

How to reproduce

vendor/bin/phpunit --generate-baseline tests/deprecations-baseline.xml

Expected behavior

I expected that the deprecation file always contains relative file paths, whether it's created in the root directory or in a subdirectory.

[sebastianbergmann]

I agree that this could be improved, but I won't have time to work on it myself any time soon. I would of course consider a pull request that addresses this.