client := &http.Client{}
	resp, err := client.Do(req)
	if err != nil {
		return nil, fmt.Errorf("failed to receive GET response for etcd metrics: %v", err)
	}
	defer resp.Body.Close()

	return testutil.TextToMetricFamilies(resp.Body)
}

func renameMetric(mf *dto.MetricFamily, name string) {
	mf.Name = &name
}

func renameLabels(mf *dto.MetricFamily, nameMapping map[string]string) {
	for _, m := range mf.Metric {

			}
			if !strings.Contains(rec.Body.String(), tt.output) {
				t.Fatalf("handleStats() => %v; want %v", rec.Body.String(), tt.output)
			}

			parser := expfmt.TextParser{}
			mfMap, err := parser.TextToMetricFamilies(strings.NewReader(rec.Body.String()))
			if err != nil && !tt.expectParseError {
				t.Fatalf("failed to parse metrics: %v", err)
			} else if err == nil && tt.expectParseError {