class FileAccessFunctionsAlignedTestCase

class FileAccessFunctionsAlignedTestCase extends BackdropWebTestCase {
  protected $profile = 'testing';

  /**
   * {@inheritdoc}
   */
  protected function setUp() {
    parent::setUp();
    user_role_grant_permissions(BACKDROP_AUTHENTICATED_ROLE, array(
      'create files',
      'view own files',
    ));
  }

  /**
   * Verify that both, file_access() and File::access() return the same value.
   */
  public function testFileAccessFunctions() {
    $users = array(
      'anonymous' => user_load(0),
      'unprivileged' => $this->backdropCreateUser(array(
        'download own document files',
      )),
      'privileged' => $this->backdropCreateUser(array(
        'view files',
        'download any document files',
        'edit own document files',
        'delete own document files',
        'view own private files',
      )),
      'manager' => $this->backdropCreateUser(array(
        'view files',
        'download any document files',
        'manage files',
        'delete files',
      )),
      'admin' => $this->backdropCreateUser(array(
        'bypass file access',
      )),
    );

    // Some files and their authors.
    $samples = array(
      'public-1.txt' => $users['unprivileged']->uid,
      'public-2.txt' => $users['privileged']->uid,
      'public-3.txt' => $users['manager']->uid,
      'private-1.txt' => $users['privileged']->uid,
      'private-2.txt' => $users['admin']->uid,
    );

    $files = array();
    foreach ($samples as $filename => $uid) {
      $public = (substr($filename, 0, 6) == 'public') ? TRUE : FALSE;
      $files[] = $this->createExampleFile($filename, $uid, $public);
    }

    // Loop through all of them and compare values.
    $operations = array('create', 'view', 'download', 'update', 'delete');
    foreach ($files as $file) {
      foreach ($users as $index => $account) {
        foreach ($operations as $op) {
          $method_access = $file->access($op, $account);
          $message = format_string('Both return %bool for operation %op and %user user on file %file', array(
            '%bool' => ($method_access) ? 'true' : 'false',
            '%op' => $op,
            '%user' => $index,
            '%file' => $file->filename,
          ));
          $this->assertEqual(file_access($op, $file, $account), $method_access, $message);
        }
      }
    }
  }

  /**
   * Helper function to create some files.
   */
  protected function createExampleFile($filename, $owner_uid, $public) {
    if ($public) {
      $filepath = 'public://' . $filename;
    }
    else {
      $filepath = 'private://' . $filename;
    }
    file_put_contents($filepath, $this->randomName(15));

    $file = new File();
    $file->uri = $filepath;
    $file->filename = $filename;
    $file->filemime = 'text/plain';
    $file->uid = $owner_uid;
    $file->timestamp = REQUEST_TIME;
    $file->filesize = filesize($file->uri);
    $file->status = 1;
    $file->type = 'document';
    backdrop_write_record('file_managed', $file);

    return entity_create('file', (array) $file);
  }
}