return fmt.Sprintf("MinIO %s: %s fail for \"%s\": \n<Error> %s", instanceType, testType, testName, failMsg)
	}

	// httptest Recorder to capture all the response by the http handler.
	rec := httptest.NewRecorder()
	// reading the body to preserve it so that it can be used again for second attempt of sending unsigned HTTP request.
	// If the body is read in the handler the same request cannot be made use of.