Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /var/www/typo3/vendor/helhum/config-loader/tests/Unit/Reader/NestedConfigReaderTest.php:17
Stack trace:
#0 {main}
thrown in /var/www/typo3/vendor/helhum/config-loader/tests/Unit/Reader/NestedConfigReaderTest.php on line 17