/**
  * Create a relevant AdWords object for testing with report download error
  * payload.
  */
 private static function InitReportDownloadErrorObject()
 {
     $invalidFieldNameApiError = new ApiError('', 'Test', 'ReportDefinitionError.INVALID_FIELD_NAME_FOR_REPORT');
     $noEnumApiError = new ApiError('', 'Test2', 'NO_ENUMS_FOR_THIS_COLUMN_NAME');
     self::$REPORT_DOWNLOAD_ERROR_OBJECT = new ReportDownloadError();
     self::$REPORT_DOWNLOAD_ERROR_OBJECT->ApiError = array($invalidFieldNameApiError, $noEnumApiError);
 }