class MachineNameControllerTest

class MachineNameControllerTest extends UnitTestCase {

  /**
   * The machine name controller.
   *
   * @var \Drupal\system\MachineNameController
   */
  protected $machineNameController;

  /**
   * The CSRF token generator.
   *
   * @var \Drupal\Core\Access\CsrfTokenGenerator
   */
  protected $tokenGenerator;

  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();

    // Create the machine name controller.
    $this->tokenGenerator = $this
      ->prophesize(CsrfTokenGenerator::class);
    $this->tokenGenerator
      ->validate(Argument::cetera())
      ->will(function ($args) {
      return $args[0] === 'token-' . $args[1];
    });
    $this->machineNameController = new MachineNameController(new PhpTransliteration(), $this->tokenGenerator
      ->reveal());
  }

  /**
   * Data provider for testMachineNameController().
   *
   * @see testMachineNameController()
   *
   * @return array
   *   An array containing:
   *     - An array of request parameters.
   *     - The expected content of the JSONresponse.
   */
  public static function providerTestMachineNameController() {

    // cspell:ignore äwesome
    $valid_data = [
      [
        [
          'text' => 'Bob',
          'langcode' => 'en',
        ],
        '"Bob"',
      ],
      [
        [
          'text' => 'Bob',
          'langcode' => 'en',
          'lowercase' => TRUE,
        ],
        '"bob"',
      ],
      [
        [
          'text' => 'Bob',
          'langcode' => 'en',
          'replace' => 'Alice',
          'replace_pattern' => 'Bob',
        ],
        '"Alice"',
      ],
      [
        [
          'text' => 'Bob',
          'langcode' => 'en',
          'replace' => 'Alice',
          'replace_pattern' => 'Tom',
        ],
        '"Bob"',
      ],
      [
        [
          'text' => 'Äwesome',
          'langcode' => 'en',
          'lowercase' => TRUE,
        ],
        '"awesome"',
      ],
      [
        [
          'text' => 'Äwesome',
          'langcode' => 'de',
          'lowercase' => TRUE,
        ],
        '"aewesome"',
      ],
      // Tests special characters replacement in the input text.
      [
        [
          'text' => 'B?!"@\\/-ob@e',
          'langcode' => 'en',
          'lowercase' => TRUE,
          'replace' => '_',
          'replace_pattern' => '[^a-z0-9_.]+',
        ],
        '"b_ob_e"',
      ],
      // Tests @ character in the replace_pattern regex.
      [
        [
          'text' => 'Bob@e\\0',
          'langcode' => 'en',
          'lowercase' => TRUE,
          'replace' => '_',
          'replace_pattern' => '[^a-z0-9_.@]+',
        ],
        '"bob@e_0"',
      ],
      // Tests null byte in the replace_pattern regex.
      [
        [
          'text' => 'Bob',
          'langcode' => 'en',
          'lowercase' => TRUE,
          'replace' => 'fail()',
          'replace_pattern' => ".*@e\0",
        ],
        '"bob"',
      ],
      [
        [
          'text' => 'Bob@e',
          'langcode' => 'en',
          'lowercase' => TRUE,
          'replace' => 'fail()',
          'replace_pattern' => ".*@e\0",
        ],
        '"fail()"',
      ],
    ];
    $valid_data = array_map(function ($data) {
      if (isset($data[0]['replace_pattern'])) {
        $data[0]['replace_token'] = 'token-' . $data[0]['replace_pattern'];
      }
      return $data;
    }, $valid_data);
    return $valid_data;
  }

  /**
   * Tests machine name controller's transliteration functionality.
   *
   * @param array $request_params
   *   An array of request parameters.
   * @param $expected_content
   *   The expected content of the JSONresponse.
   *
   * @see \Drupal\system\MachineNameController::transliterate()
   *
   * @dataProvider providerTestMachineNameController
   */
  public function testMachineNameController(array $request_params, $expected_content) {
    $request = Request::create('', 'GET', $request_params);
    $json = $this->machineNameController
      ->transliterate($request);
    $this
      ->assertEquals($expected_content, $json
      ->getContent());
  }

  /**
   * Tests the pattern validation.
   */
  public function testMachineNameControllerWithInvalidReplacePattern() {
    $request = Request::create('', 'GET', [
      'text' => 'Bob',
      'langcode' => 'en',
      'replace' => 'Alice',
      'replace_pattern' => 'Bob',
      'replace_token' => 'invalid',
    ]);
    $this
      ->expectException(AccessDeniedHttpException::class);
    $this
      ->expectExceptionMessage("Invalid 'replace_token' query parameter.");
    $this->machineNameController
      ->transliterate($request);
  }

  /**
   * Tests the pattern validation with a missing token.
   */
  public function testMachineNameControllerWithMissingToken() {
    $request = Request::create('', 'GET', [
      'text' => 'Bob',
      'langcode' => 'en',
      'replace' => 'Alice',
      'replace_pattern' => 'Bob',
    ]);
    $this
      ->expectException(AccessDeniedHttpException::class);
    $this
      ->expectExceptionMessage("Missing 'replace_token' query parameter.");
    $this->machineNameController
      ->transliterate($request);
  }

  /**
   * Tests deprecation of MachineNameController.
   */
  public function testMachineNameControllerDeprecation() : void {
    $request = Request::create('', 'GET', [
      'text' => 'Bob',
      'langcode' => 'en',
    ]);
    $this
      ->expectDeprecation('Drupal\\system\\MachineNameController::transliterate() is deprecated in drupal:10.2.0 and is removed from drupal:11.0.0. There is no replacement. See https://www.drupal.org/node/3367037');
    $json = $this->machineNameController
      ->transliterate($request);
    $this
      ->assertEquals('"Bob"', $json
      ->getContent());
  }

}