69 lines
1.7 KiB
Go
69 lines
1.7 KiB
Go
/*
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Copyright 2022 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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"math"
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"testing"
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"time"
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"k8s.io/component-base/metrics/legacyregistry"
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)
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func TestObserveCompilation(t *testing.T) {
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defer legacyregistry.Reset()
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Metrics.ObserveCompilation(2 * time.Second)
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c, s := gatherHistogram(t, "apiserver_cel_compilation_duration_seconds")
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if c != 1 {
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t.Errorf("unexpected count: %v", c)
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}
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if math.Abs(s-2.0) > 1e-7 {
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t.Fatalf("incorrect sum: %v", s)
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}
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}
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func TestObserveEvaluation(t *testing.T) {
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defer legacyregistry.Reset()
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Metrics.ObserveEvaluation(2 * time.Second)
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c, s := gatherHistogram(t, "apiserver_cel_evaluation_duration_seconds")
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if c != 1 {
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t.Errorf("unexpected count: %v", c)
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}
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if math.Abs(s-2.0) > 1e-7 {
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t.Fatalf("incorrect sum: %v", s)
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}
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}
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func gatherHistogram(t *testing.T, name string) (count uint64, sum float64) {
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metrics, err := legacyregistry.DefaultGatherer.Gather()
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if err != nil {
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t.Fatalf("Failed to gather metrics: %s", err)
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}
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for _, mf := range metrics {
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if mf.GetName() == name {
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for _, m := range mf.GetMetric() {
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h := m.GetHistogram()
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count += h.GetSampleCount()
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sum += h.GetSampleSum()
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}
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return
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}
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}
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t.Fatalf("metric not found: %v", name)
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return 0, 0
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}
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