(t *testing.T)
| 56 | } |
| 57 | |
| 58 | func TestTimerObserveWithExemplar(t *testing.T) { |
| 59 | var ( |
| 60 | exemplar = Labels{"foo": "bar"} |
| 61 | his = NewHistogram(HistogramOpts{Name: "test_histogram"}) |
| 62 | sum = NewSummary(SummaryOpts{Name: "test_summary"}) |
| 63 | gauge = NewGauge(GaugeOpts{Name: "test_gauge"}) |
| 64 | ) |
| 65 | |
| 66 | func() { |
| 67 | hisTimer := NewTimer(his) |
| 68 | sumTimer := NewTimer(sum) |
| 69 | gaugeTimer := NewTimer(ObserverFunc(gauge.Set)) |
| 70 | defer hisTimer.ObserveDurationWithExemplar(exemplar) |
| 71 | // Gauges and summaries does not implement ExemplarObserver, so we expect them to ignore exemplar. |
| 72 | defer sumTimer.ObserveDurationWithExemplar(exemplar) |
| 73 | defer gaugeTimer.ObserveDurationWithExemplar(exemplar) |
| 74 | }() |
| 75 | |
| 76 | m := &dto.Metric{} |
| 77 | his.Write(m) |
| 78 | if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got { |
| 79 | t.Errorf("want %d observations for histogram, got %d", want, got) |
| 80 | } |
| 81 | var got []*dto.LabelPair |
| 82 | for _, b := range m.GetHistogram().GetBucket() { |
| 83 | if b.Exemplar != nil { |
| 84 | got = b.Exemplar.GetLabel() |
| 85 | break |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | want := []*dto.LabelPair{{Name: proto.String("foo"), Value: proto.String("bar")}} |
| 90 | if !reflect.DeepEqual(got, want) { |
| 91 | t.Errorf("expected %v exemplar labels, got %v", want, got) |
| 92 | } |
| 93 | |
| 94 | m.Reset() |
| 95 | sum.Write(m) |
| 96 | if want, got := uint64(1), m.GetSummary().GetSampleCount(); want != got { |
| 97 | t.Errorf("want %d observations for summary, got %d", want, got) |
| 98 | } |
| 99 | m.Reset() |
| 100 | gauge.Write(m) |
| 101 | if got := m.GetGauge().GetValue(); got <= 0 { |
| 102 | t.Errorf("want value > 0 for gauge, got %f", got) |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | func TestTimerEmpty(t *testing.T) { |
| 107 | emptyTimer := NewTimer(nil) |
nothing calls this directly
no test coverage detected