Prado\Web\THttpRequest::offsetSet PHP Method

    public function offsetSet($offset, $item)
    {
        $this->add($offset, $item);
    }

 public function testOffsetUnset()
 {
     $request = new THttpRequest();
     $request->init(null);
     $request->offsetSet(0, 'test');
     // Count should be 1
     self::assertEquals(1, $request->count());
     $request->offsetUnset(0);
     // Now, count should be zero
     self::assertEquals(0, $request->count());
 }