/**
* Initialises with the expected value and the actual value.
*
* @param mixed $expected Expected value retrieved.
* @param mixed $actual Actual value retrieved.
* @param string $message A string which is prefixed on all returned lines
* in the difference output.
* @param boolean $expectedIsType
*/
public function __construct($expected, $actual, $message = '', $expectedIsType = FALSE)
{
parent::__construct($expected, $actual, $message);
$this->expectedIsType = $expectedIsType;
}