Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\mywamp\sites\allsite\calcomposer\vendor\sebastian\comparator\tests\ExceptionComparatorTest.php:20 Stack trace: #0 {main} thrown in C:\mywamp\sites\allsite\calcomposer\vendor\sebastian\comparator\tests\ExceptionComparatorTest.php on line 20