/**
  * List file and directory
  *
  * @param int $id - id Directory
  * @return array
  */
 protected function listFileFromDirectory($id)
 {
     $directoryList = FileDirectory::findAll(['parent_id' => $id]);
     $fileList = FileList::findAll(['file_directory_id' => $id]);
     $dataFileCollection = [];
     foreach ($directoryList as $directory) {
         $dataFileCollection[] = $directory->jsonSerialize();
     }
     foreach ($fileList as $file) {
         $dataFileCollection[] = $file->jsonSerialize();
     }
     return $dataFileCollection;
 }
 public function testIssetFile()
 {
     $model = FileList::findOne(2);
     $this->assertEquals(2, $model->id);
 }