Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/trombino/public_html/africa.trombino.org/vendor_/ezimuel/guzzlestreams/tests/BufferStreamTest.php:8 Stack trace: #0 {main} thrown in /home/trombino/public_html/africa.trombino.org/vendor_/ezimuel/guzzlestreams/tests/BufferStreamTest.php on line 8