protected function setUp()
{
$this->validator = $this->getMockBuilder('Symfony\Component\Validator\Validator\ValidatorInterface')->getMock();
$metadata = $this->getMockBuilder('Symfony\Component\Validator\Mapping\ClassMetadata')->disableOriginalConstructor()->getMock();
$this->validator->expects($this->once())->method('getMetadataFor')->will($this->returnValue($metadata));
parent::setUp();
}