},
	}
	workload := "details"

	sm, err := metrics(mockProm, workload, time.Minute)
	if err != nil {
		t.Fatalf("Unwanted exception %v", err)
	}

	var out bytes.Buffer
	printHeader(&out)
	printMetrics(&out, sm)
	output := out.String()

	expectedOutput := `                                  WORKLOAD    TOTAL RPS    ERROR RPS  P50 LATENCY  P90 LATENCY  P99 LATENCY