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b93d1e9abb
* feat(metrics): publish build_info metric Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com> * feat(metrics): publish build_info metric Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com> * feat(metrics): publish build_info metric Co-authored-by: Michel Loiseleur <97035654+mloiseleur@users.noreply.github.com> * feat(metrics): publish build_info metric Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com> --------- Signed-off-by: ivan katliarchuk <ivan.katliarchuk@gmail.com> Co-authored-by: Michel Loiseleur <97035654+mloiseleur@users.noreply.github.com>
131 lines
3.8 KiB
Go
131 lines
3.8 KiB
Go
/*
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Copyright 2025 The Kubernetes 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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package metrics
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import (
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"reflect"
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"testing"
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"github.com/prometheus/client_golang/prometheus"
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dto "github.com/prometheus/client_model/go"
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"github.com/stretchr/testify/assert"
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)
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func TestNewGaugeWithOpts(t *testing.T) {
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opts := prometheus.GaugeOpts{
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Name: "test_gauge",
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Subsystem: "test_subsystem",
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Help: "This is a test gauge",
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}
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gaugeMetric := NewGaugeWithOpts(opts)
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assert.Equal(t, "gauge", gaugeMetric.Type)
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assert.Equal(t, "test_gauge", gaugeMetric.Name)
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assert.Equal(t, Namespace, gaugeMetric.Namespace)
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assert.Equal(t, "test_subsystem", gaugeMetric.Subsystem)
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assert.Equal(t, "This is a test gauge", gaugeMetric.Help)
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assert.Equal(t, "test_subsystem_test_gauge", gaugeMetric.FQDN)
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assert.NotNil(t, gaugeMetric.Gauge)
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}
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func TestNewCounterWithOpts(t *testing.T) {
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opts := prometheus.CounterOpts{
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Name: "test_counter",
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Subsystem: "test_subsystem",
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Help: "This is a test counter",
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}
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counterMetric := NewCounterWithOpts(opts)
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assert.Equal(t, "counter", counterMetric.Type)
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assert.Equal(t, "test_counter", counterMetric.Name)
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assert.Equal(t, Namespace, counterMetric.Namespace)
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assert.Equal(t, "test_subsystem", counterMetric.Subsystem)
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assert.Equal(t, "This is a test counter", counterMetric.Help)
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assert.Equal(t, "test_subsystem_test_counter", counterMetric.FQDN)
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assert.NotNil(t, counterMetric.Counter)
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}
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func TestNewCounterVecWithOpts(t *testing.T) {
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opts := prometheus.CounterOpts{
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Name: "test_counter_vec",
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Namespace: "test_namespace",
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Subsystem: "test_subsystem",
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Help: "This is a test counter vector",
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}
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labelNames := []string{"label1", "label2"}
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counterVecMetric := NewCounterVecWithOpts(opts, labelNames)
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assert.Equal(t, "counter", counterVecMetric.Type)
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assert.Equal(t, "test_counter_vec", counterVecMetric.Name)
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assert.Equal(t, Namespace, counterVecMetric.Namespace)
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assert.Equal(t, "test_subsystem", counterVecMetric.Subsystem)
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assert.Equal(t, "This is a test counter vector", counterVecMetric.Help)
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assert.Equal(t, "test_subsystem_test_counter_vec", counterVecMetric.FQDN)
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assert.NotNil(t, counterVecMetric.CounterVec)
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}
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func TestGaugeV_SetWithLabels(t *testing.T) {
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opts := prometheus.GaugeOpts{
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Name: "test_gauge",
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Namespace: "test_ns",
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Subsystem: "test_sub",
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Help: "help text",
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}
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gv := NewGaugedVectorOpts(opts, []string{"label1", "label2"})
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gv.SetWithLabels(1.23, "Alpha", "BETA")
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g, err := gv.Gauge.GetMetricWithLabelValues("alpha", "beta")
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assert.NoError(t, err)
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var m dto.Metric
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err = g.Write(&m)
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assert.NoError(t, err)
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assert.NotNil(t, m.Gauge)
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assert.InDelta(t, 1.23, *m.Gauge.Value, 0.01)
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// Override the value
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gv.SetWithLabels(4.56, "ALPHA", "beta")
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// reuse g (same label combination)
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err = g.Write(&m)
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assert.NoError(t, err)
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assert.InDelta(t, 4.56, *m.Gauge.Value, 0.01)
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assert.Len(t, m.Label, 2)
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}
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func TestNewBuildInfoCollector(t *testing.T) {
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metric := NewGaugeFuncMetric(prometheus.GaugeOpts{
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Namespace: Namespace,
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Name: "build_info",
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ConstLabels: prometheus.Labels{
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"version": "0.0.1",
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"goversion": "1.24",
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"arch": "arm64",
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},
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})
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desc := metric.GaugeFunc.Desc()
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assert.Equal(t, "external_dns_build_info", reflect.ValueOf(desc).Elem().FieldByName("fqName").String())
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assert.Contains(t, desc.String(), "version=\"0.0.1\"")
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}
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