Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home3/cp435160/public_html/apis.thonburitrang.com/vendor/linecorp/line-bot-sdk/tests/LINEBot/SendFlexTest.php:52 Stack trace: #0 {main} thrown in /home3/cp435160/public_html/apis.thonburitrang.com/vendor/linecorp/line-bot-sdk/tests/LINEBot/SendFlexTest.php on line 52