Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/chuquicamata/public_html/bridge2/vendor/transbank/transbank-sdk/tests/Webpay/WebpayPlus/WebpayMallTransactionTest.php:20 Stack trace: #0 {main} thrown in /home/chuquicamata/public_html/bridge2/vendor/transbank/transbank-sdk/tests/Webpay/WebpayPlus/WebpayMallTransactionTest.php on line 20