// simple function which returns a message which gives the context of the test
	// and then followed by the actual error message.
	failTestStr := func(testType, failMsg string) string {
		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()