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56 lines
1.2 KiB
56 lines
1.2 KiB
2 years ago
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package prometheus
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import (
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"fmt"
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"testing"
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"github.com/prometheus/client_golang/prometheus"
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)
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func TestGuage(t *testing.T) {
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expect := `# HELP test_request_test_guage_metric test
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# TYPE test_request_test_guage_metric gauge
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test_request_test_guage_metric{code="test",kind="test",operation="test",reason="test"} %d
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`
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guageVec := prometheus.NewGaugeVec(prometheus.GaugeOpts{
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Namespace: "test",
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Name: "test_guage_metric",
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Subsystem: "request",
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Help: "test",
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}, []string{"kind", "operation", "code", "reason"})
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guage := NewGauge(guageVec)
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guage.With("test", "test", "test", "test").Set(1)
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reg := prometheus.NewRegistry()
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reg.MustRegister(guageVec)
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result, err := gatherLatest(reg)
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if err != nil {
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t.Fatal(err)
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}
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if result != fmt.Sprintf(expect, 1) {
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t.Fatal("metrics error")
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}
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guage.With("test", "test", "test", "test").Add(1)
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result, err = gatherLatest(reg)
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if err != nil {
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t.Fatal(err)
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}
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if result != fmt.Sprintf(expect, 2) {
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t.Fatal("metrics error")
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}
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guage.With("test", "test", "test", "test").Sub(1)
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result, err = gatherLatest(reg)
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if err != nil {
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t.Fatal(err)
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}
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if result != fmt.Sprintf(expect, 1) {
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t.Fatal("metrics error")
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}
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}
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