public function testReverseTransformExpectsValidTimestamp()
 {
     $reverseTransformer = new DateTimeToTimestampTransformer();
     $this->setExpectedException('Symfony\\Component\\Form\\Exception\\TransformationFailedException');
     $reverseTransformer->reverseTransform('2010-2010-2010');
 }
    public function testReverseTransformExpectsValidTimestamp()
    {
        $reverseTransformer = new DateTimeToTimestampTransformer();

        $this->setExpectedException('Symfony\Component\Form\Exception\UnexpectedTypeException');

        $reverseTransformer->reverseTransform('2010-2010-2010', null);
    }