Temporary file used by SourceMapper may be deleted prematurely when multiple PHPUnit processes run in parallel #6503
Description
| Q | A |
|---|---|
| PHPUnit version | 11.5.52 |
| PHP version | 8.2 |
| Installation Method | Composer |
Summary
The Symfony Test suite on my CI has started failing since 2 days. The failures started when PHPUnit switched from 11.5.51 to 11.5.52. The same happens across other newly release versions when using more recent PHP versions. My suspicions go to 20702bf.
Current behavior
From https://github.com/mbeccati/php-latest-builds/actions/runs/21816468162/job/62939084841:
1) Symfony\Component\Mailer\Tests\Exception\UnsupportedSchemeExceptionTest::testMessageWhereSchemeIsPartOfSchemeToPackageMap with data set #0 ('ahasend', 'symfony/aha-send-mailer')
PHPUnit\Framework\Exception: Warning: file_get_contents(/tmp/phpunit_gumC1F): Failed to open stream: No such file or directory in /home/runner/work/php-latest-builds/php-latest-builds/.phpunit/phpunit-11.5-0/src/TextUI/Configuration/SourceMapper.php on line 45
/home/runner/work/php-latest-builds/php-latest-builds/.phpunit/phpunit-11.5-0/phpunit:104
/home/runner/work/php-latest-builds/php-latest-builds/vendor/symfony/phpunit-bridge/bin/simple-phpunit.php:458
/home/runner/work/php-latest-builds/php-latest-builds/vendor/symfony/phpunit-bridge/bin/simple-phpunit:13
...
121) Symfony\Bundle\FrameworkBundle\Tests\Controller\ControllerHelperTest::testAddFlash
PHPUnit\Framework\Exception: Warning: file_get_contents(/tmp/phpunit_gumC1F): Failed to open stream: No such file or directory in /home/runner/work/php-latest-builds/php-latest-builds/.phpunit/phpunit-11.5-0/src/TextUI/Configuration/SourceMapper.php on line 45
/home/runner/work/php-latest-builds/php-latest-builds/.phpunit/phpunit-11.5-0/phpunit:104
/home/runner/work/php-latest-builds/php-latest-builds/vendor/symfony/phpunit-bridge/bin/simple-phpunit.php:458
/home/runner/work/php-latest-builds/php-latest-builds/vendor/symfony/phpunit-bridge/bin/simple-phpunit:13
How to reproduce
I was able to reproduce locally, but at the moment I have no time to debug and possibly make a PR, sorry.
Fresh clone of SF 7.4, composer install and ./phpunit with the --log-junit option.
Expected behavior
No Failed to open stream errors from PHPUnit.