public function testReverseTransformExpectsString()
 {
     $transformer = new PercentToLocalizedStringTransformer();
     $this->setExpectedException('Symfony\\Component\\Form\\Exception\\UnexpectedTypeException');
     $transformer->reverseTransform(1);
 }
 /**
  * {@inheritdoc}
  */
 public function reverseTransform($value)
 {
     return parent::reverseTransform(str_replace('.', ',', $value));
 }