108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
// Copyright 2016 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package prometheus
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import (
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"testing"
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dto "github.com/prometheus/client_model/go"
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)
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func TestTimerObserve(t *testing.T) {
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his := NewHistogram(HistogramOpts{
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Name: "test_histogram",
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})
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sum := NewSummary(SummaryOpts{
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Name: "test_summary",
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})
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gauge := NewGauge(GaugeOpts{
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Name: "test_gauge",
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})
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func() {
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hisTimer := NewTimer().With(his)
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sumTimer := NewTimer().With(sum)
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gaugeTimer := NewTimer().WithGauge(gauge)
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defer hisTimer.ObserveDuration()
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defer sumTimer.ObserveDuration()
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defer gaugeTimer.ObserveDuration()
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}()
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m := &dto.Metric{}
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his.Write(m)
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if want, got := uint64(1), m.GetHistogram().GetSampleCount(); want != got {
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t.Errorf("want %d observations for histogram, got %d", want, got)
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}
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m.Reset()
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sum.Write(m)
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if want, got := uint64(1), m.GetSummary().GetSampleCount(); want != got {
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t.Errorf("want %d observations for summary, got %d", want, got)
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}
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m.Reset()
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gauge.Write(m)
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if got := m.GetGauge().GetValue(); got <= 0 {
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t.Errorf("want value > 0 for gauge, got %f", got)
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}
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}
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func TestTimerEmpty(t *testing.T) {
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emptyTimer := NewTimer()
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emptyTimer.ObserveDuration()
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// Do nothing, just demonstrate it works without panic.
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}
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func TestTimerUnset(t *testing.T) {
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his := NewHistogram(HistogramOpts{
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Name: "test_histogram",
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})
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func() {
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timer := NewTimer().With(his)
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defer timer.ObserveDuration()
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timer.With(nil)
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}()
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m := &dto.Metric{}
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his.Write(m)
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if want, got := uint64(0), m.GetHistogram().GetSampleCount(); want != got {
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t.Errorf("want %d observations for histogram, got %d", want, got)
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}
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}
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func TestTimerChange(t *testing.T) {
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his := NewHistogram(HistogramOpts{
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Name: "test_histogram",
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})
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sum := NewSummary(SummaryOpts{
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Name: "test_summary",
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})
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func() {
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timer := NewTimer().With(his)
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defer timer.ObserveDuration()
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timer.With(sum)
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}()
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m := &dto.Metric{}
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his.Write(m)
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if want, got := uint64(0), m.GetHistogram().GetSampleCount(); want != got {
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t.Errorf("want %d observations for histogram, got %d", want, got)
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}
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m.Reset()
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sum.Write(m)
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if want, got := uint64(1), m.GetSummary().GetSampleCount(); want != got {
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t.Errorf("want %d observations for summary, got %d", want, got)
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}
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}
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