79 lines
2.4 KiB
Go
79 lines
2.4 KiB
Go
/*
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Copyright 2021 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 request
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import (
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"context"
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"testing"
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"time"
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clocktesting "k8s.io/utils/clock/testing"
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)
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func TestLatencyTrackersFrom(t *testing.T) {
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type testCase struct {
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Durations []time.Duration
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SumDurations time.Duration
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MaxDuration time.Duration
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}
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tc := testCase{
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Durations: []time.Duration{100, 200, 300, 200, 400, 300, 100},
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SumDurations: 1600,
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MaxDuration: 400,
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}
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t.Run("TestLatencyTrackersFrom", func(t *testing.T) {
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parent := context.TODO()
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_, ok := LatencyTrackersFrom(parent)
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if ok {
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t.Error("expected LatencyTrackersFrom to not be initialized")
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}
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clk := clocktesting.FakeClock{}
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ctx := WithLatencyTrackersAndCustomClock(parent, &clk)
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wd, ok := LatencyTrackersFrom(ctx)
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if !ok {
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t.Error("expected LatencyTrackersFrom to be initialized")
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}
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if wd.MutatingWebhookTracker.GetLatency() != 0 || wd.ValidatingWebhookTracker.GetLatency() != 0 || wd.APFQueueWaitTracker.GetLatency() != 0 {
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t.Error("expected values to be initialized to 0")
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}
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for _, d := range tc.Durations {
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wd.MutatingWebhookTracker.Track(func() { clk.Step(d) })
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wd.ValidatingWebhookTracker.Track(func() { clk.Step(d) })
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wd.APFQueueWaitTracker.Track(func() { clk.Step(d) })
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}
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wd, ok = LatencyTrackersFrom(ctx)
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if !ok {
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t.Errorf("expected webhook duration to be initialized")
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}
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if wd.MutatingWebhookTracker.GetLatency() != tc.SumDurations {
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t.Errorf("expected admit duration: %q, but got: %q", tc.SumDurations, wd.MutatingWebhookTracker.GetLatency())
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}
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if wd.ValidatingWebhookTracker.GetLatency() != tc.MaxDuration {
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t.Errorf("expected validate duration: %q, but got: %q", tc.MaxDuration, wd.ValidatingWebhookTracker.GetLatency())
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}
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if wd.APFQueueWaitTracker.GetLatency() != tc.MaxDuration {
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t.Errorf("expected priority & fairness duration: %q, but got: %q", tc.MaxDuration, wd.APFQueueWaitTracker.GetLatency())
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}
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})
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}
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