Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/jtlqzqm/portfolioV2/vendor/djmarland/isin/tests/src/ISIN/ValidatorTest.php:7 Stack trace: #0 {main} thrown in /home/jtlqzqm/portfolioV2/vendor/djmarland/isin/tests/src/ISIN/ValidatorTest.php on line 7