class RevisionRouteProviderTest

class RevisionRouteProviderTest extends KernelTestBase {
  use UserCreationTrait;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'entity_test',
    'user',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->installEntitySchema('entity_test_rev');
    $this->installEntitySchema('user');
    $this->setUpCurrentUser([
      'uid' => 1,
    ]);
  }
  
  /**
   * Tests revision access for revision overview.
   *
   * Tests routes which do not need a specific revision parameter.
   */
  public function testOperationAccessOverview() : void {
    $entity = EntityTestRev::create()->setName('first revision');
    $entity->save();
    $this->assertFalse($entity->toUrl('version-history')
      ->access());
    $entity->setName('view all revisions')
      ->setNewRevision();
    $entity->save();
    $this->assertTrue($entity->toUrl('version-history')
      ->access());
  }
  
  /**
   * Tests revision access is granted by entity operations.
   *
   * Ensures entity is sourced from revision parameter, not entity parameter or
   * default revision.
   * E.g 'entity_test_rev_revision'
   * in '/{entity_test_rev}/revision/{entity_test_rev_revision}/view'.
   *
   * @param string $linkTemplate
   *   The link template to test.
   * @param string $entityLabel
   *   Access is granted via specially named entity label passed to
   *   EntityTestAccessControlHandler.
   *
   * @dataProvider providerOperationAccessRevisionRoutes
   */
  public function testOperationAccessRevisionRoutes(string $linkTemplate, string $entityLabel) : void {
    /** @var \Drupal\Core\Entity\RevisionableStorageInterface $entityStorage */
    $entityStorage = \Drupal::entityTypeManager()->getStorage('entity_test_rev');
    $entity = EntityTestRev::create()->setName('first revision');
    $entity->save();
    $noAccessRevisionId = $entity->getRevisionId();
    $entity->setName($entityLabel)
      ->setNewRevision();
    $entity->save();
    $hasAccessRevisionId = $entity->getRevisionId();
    $this->assertNotEquals($noAccessRevisionId, $hasAccessRevisionId);
    // Create an additional default revision to ensure access isn't being pulled
    // from default revision.
    $entity->setName('default')
      ->setNewRevision();
    $entity->isDefaultRevision(TRUE);
    $entity->save();
    // Reload entity so default revision flags are accurate.
    $originalRevision = $entityStorage->loadRevision($noAccessRevisionId);
    $viewableRevision = $entityStorage->loadRevision($hasAccessRevisionId);
    $this->assertFalse($originalRevision->toUrl($linkTemplate)
      ->access());
    $this->assertTrue($viewableRevision->toUrl($linkTemplate)
      ->access());
  }
  
  /**
   * Data provider for testOperationAccessRevisionRoutes.
   *
   * @return array
   *   Data for testing.
   */
  public static function providerOperationAccessRevisionRoutes() : array {
    $data = [];
    $data['view revision'] = [
      'revision',
      'view revision',
    ];
    $data['revert revision'] = [
      'revision-revert-form',
      'revert',
    ];
    $data['delete revision'] = [
      'revision-delete-form',
      'delete revision',
    ];
    return $data;
  }

}