class SpecialAttributesRouteSubscriberTest

class SpecialAttributesRouteSubscriberTest extends UnitTestCase {
  
  /**
   * Provides a list of routes with invalid route variables.
   *
   * @return array
   *   An array of invalid routes.
   */
  public static function providerTestOnRouteBuildingInvalidVariables() {
    // Build an array of mock route objects based on paths.
    $routes = [];
    $paths = [
      '/test/{system_path}',
      '/test/{_legacy}',
      '/test/{' . RouteObjectInterface::ROUTE_OBJECT . '}',
      '/test/{' . RouteObjectInterface::ROUTE_NAME . '}',
      '/test/{_content}',
      '/test/{_form}',
      '/test/{_raw_variables}',
    ];
    foreach ($paths as $path) {
      $routes[] = [
        new Route($path),
      ];
    }
    return $routes;
  }
  
  /**
   * Provides a list of routes with valid route variables.
   *
   * @return array
   *   An array of valid routes.
   */
  public static function providerTestOnRouteBuildingValidVariables() {
    // Build an array of mock route objects based on paths.
    $routes = [];
    $paths = [
      '/test/{account}',
      '/test/{node}',
      '/test/{user}',
      '/test/{entity_test}',
    ];
    foreach ($paths as $path) {
      $routes[] = [
        new Route($path),
      ];
    }
    return $routes;
  }
  
  /**
   * Tests the onAlterRoutes method for valid variables.
   *
   * @param \Symfony\Component\Routing\Route $route
   *   The route to check.
   *
   * @legacy-covers ::onAlterRoutes
   */
  public function testOnRouteBuildingValidVariables(Route $route) : void {
    $route_collection = new RouteCollection();
    $route_collection->add('test', $route);
    $event = new RouteBuildEvent($route_collection);
    $subscriber = new SpecialAttributesRouteSubscriber();
    $this->assertNull($subscriber->onAlterRoutes($event));
  }
  
  /**
   * Tests the onAlterRoutes method for invalid variables.
   *
   * @param \Symfony\Component\Routing\Route $route
   *   The route to check.
   *
   * @legacy-covers ::onAlterRoutes
   */
  public function testOnRouteBuildingInvalidVariables(Route $route) : void {
    $route_collection = new RouteCollection();
    $route_collection->add('test', $route);
    $event = new RouteBuildEvent($route_collection);
    $subscriber = new SpecialAttributesRouteSubscriber();
    $this->expectException(\InvalidArgumentException::class);
    $this->expectExceptionMessage('Route test uses reserved variable names:');
    $subscriber->onAlterRoutes($event);
  }

}