class UserRegistrationResourceTest

class UserRegistrationResourceTest extends UnitTestCase {
    const ERROR_MESSAGE = "Unprocessable Entity: validation failed.\nproperty_path: message\nproperty_path_2: message_2\n";
    
    /**
     * Class to be tested.
     *
     * @var \Drupal\user\Plugin\rest\resource\UserRegistrationResource
     */
    protected $testClass;
    
    /**
     * A reflection of self::$testClass.
     *
     * @var \ReflectionClass
     */
    protected $reflection;
    
    /**
     * A user settings config instance.
     *
     * @var \Drupal\Core\Config\ImmutableConfig|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $userSettings;
    
    /**
     * Logger service.
     *
     * @var \Psr\Log\LoggerInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $logger;
    
    /**
     * The current user.
     *
     * @var \Drupal\Core\Session\AccountInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $currentUser;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $this->logger = $this->prophesize(LoggerInterface::class)
            ->reveal();
        $this->userSettings = $this->prophesize(ImmutableConfig::class);
        $this->currentUser = $this->prophesize(AccountInterface::class);
        $this->testClass = new UserRegistrationResource([], 'plugin_id', '', [], $this->logger, $this->userSettings
            ->reveal(), $this->currentUser
            ->reveal());
        $this->reflection = new \ReflectionClass($this->testClass);
    }
    
    /**
     * Tests that an exception is thrown when no data provided for the account.
     */
    public function testEmptyPost() {
        $this->expectException(BadRequestHttpException::class);
        $this->testClass
            ->post(NULL);
    }
    
    /**
     * Tests that only new user accounts can be registered.
     */
    public function testExistedEntityPost() {
        $entity = $this->prophesize(User::class);
        $entity->isNew()
            ->willReturn(FALSE);
        $this->expectException(BadRequestHttpException::class);
        $this->testClass
            ->post($entity->reveal());
    }
    
    /**
     * Tests that admin permissions are required to register a user account.
     */
    public function testRegistrationAdminOnlyPost() {
        $this->userSettings
            ->get('register')
            ->willReturn(UserInterface::REGISTER_ADMINISTRATORS_ONLY);
        $this->currentUser
            ->isAnonymous()
            ->willReturn(TRUE);
        $this->testClass = new UserRegistrationResource([], 'plugin_id', '', [], $this->logger, $this->userSettings
            ->reveal(), $this->currentUser
            ->reveal());
        $entity = $this->prophesize(User::class);
        $entity->isNew()
            ->willReturn(TRUE);
        $this->expectException(AccessDeniedHttpException::class);
        $this->testClass
            ->post($entity->reveal());
    }
    
    /**
     * Tests that only anonymous users can register users.
     */
    public function testRegistrationAnonymousOnlyPost() {
        $this->currentUser
            ->isAnonymous()
            ->willReturn(FALSE);
        $this->testClass = new UserRegistrationResource([], 'plugin_id', '', [], $this->logger, $this->userSettings
            ->reveal(), $this->currentUser
            ->reveal());
        $entity = $this->prophesize(User::class);
        $entity->isNew()
            ->willReturn(TRUE);
        $this->expectException(AccessDeniedHttpException::class);
        $this->testClass
            ->post($entity->reveal());
    }

}