Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\vendor\guzzlehttp\ringphp\tests\Future\CompletedFutureArrayTest.php:6
Stack trace:
#0 {main}
  thrown in C:\MANTUM\xampp2\htdocs\MNT\ventasvariables2\libreria\vendor\guzzlehttp\ringphp\tests\Future\CompletedFutureArrayTest.php on line 6