public function test_name_id_validator_is_called_when_name_id_present()
{
$subject = new Subject();
$nameId = new NameID();
$subject->setNameID($nameId);
$nameIdValidatorMock = $this->getNameIdValidatorMock();
$nameIdValidatorMock->expects($this->once())->method('validateNameId')->with($nameId);
$validator = new SubjectValidator($nameIdValidatorMock);
$validator->validateSubject($subject);
}