Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/apolo/public_html/sgdpr/vendor/miloschuman/yii2-highcharts-widget/tests/BaseTestCase.php:10 Stack trace: #0 {main} thrown in /home/apolo/public_html/sgdpr/vendor/miloschuman/yii2-highcharts-widget/tests/BaseTestCase.php on line 10