Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/palabrebel/www/kimai/tests/Export/Spreadsheet/SpreadsheetExporterTest.php:22 Stack trace: #0 {main} thrown in /home/palabrebel/www/kimai/tests/Export/Spreadsheet/SpreadsheetExporterTest.php on line 22