eZ\Publish\Core\MVC\Symfony\Security\User\Provider::refreshUser PHP Method

    public function refreshUser(CoreUserInterface $user)
    {
        if (!$user instanceof UserInterface) {
            throw new UnsupportedUserException(sprintf('Instances of "%s" are not supported.', get_class($user)));
        }
        try {
            $refreshedAPIUser = $this->repository->getUserService()->loadUser($user->getAPIUser()->id);
            $user->setAPIUser($refreshedAPIUser);
            $this->repository->setCurrentUser($refreshedAPIUser);
            return $user;
        } catch (NotFoundException $e) {
            throw new UsernameNotFoundException($e->getMessage(), 0, $e);
        }
    }

 public function testRefreshUser()
 {
     $apiUser = $this->getMock('eZ\\Publish\\API\\Repository\\Values\\User\\User');
     $user = $this->getMock('eZ\\Publish\\Core\\MVC\\Symfony\\Security\\UserInterface');
     $user->expects($this->once())->method('getAPIUser')->will($this->returnValue($apiUser));
     $this->repository->expects($this->once())->method('setCurrentUser')->with($apiUser);
     $this->assertSame($user, $this->userProvider->refreshUser($user));
 }