Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\xampp\htdocs\systemcolas\vendor\mike42\escpos-php\test\unit\EscposPrintBufferTest.php:15
Stack trace:
#0 {main}
thrown in C:\xampp\htdocs\systemcolas\vendor\mike42\escpos-php\test\unit\EscposPrintBufferTest.php on line 15