Hi, 
recently I post a reply about some issues with PHPUNIT and PHPED. I am new on it. They are solved. The problem I experienced is the example 
 	
	
 
namespace sparkbits\backend\core;  //this is my namespace
 
use PHPUnit\Framework\TestCase;
 
use RuntimeException;
 
use PDO;
 
class StackTest extends TestCase 
 
{ 
 
    public function testmytest1() 
 
    {
 
            <my tests inside>
 
     }
 
}
 
 
 | 	
 
works on version 5.5.4 but not in 5.2.12 which informs that  PHPUnit\Framework\TestCase is not found. If I try to use this versoin on PHPED I cannot because it is unsuported (???). Anyone experience the same? what's wrong?
thank you