/**
  *@test
  *
  * @expectedException Symfony\Component\Security\Core\Exception\UsernameNotFoundException
  * @expectedExceptionMessage UserIdentity must have a user to be set previously.
  */
 public function throwUsernameNotFoundIfFoundUserIdentityNotHaveUserSet()
 {
     $expectedIdentity = 'the_identity';
     $identityManagerMock = $this->createIdentityManagerMock();
     $identityManagerMock->expects($this->once())->method('findByIdentity')->with($expectedIdentity)->will($this->returnValue($this->createUserIdentityMock()));
     $manager = new UserManager($identityManagerMock);
     $manager->loadUserByUsername($expectedIdentity);
 }