kubernetes healthz_test 源码
kubernetes healthz_test 代码
文件路径：/staging/src/k8s.io/apiserver/pkg/server/healthz_test.go
/*
Copyright 2019 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package server
import (
"testing"
"time"
testingclock "k8s.io/utils/clock/testing"
)
func TestDelayedHealthCheck(t *testing.T) {
t.Run("test that liveness check returns true until the delay has elapsed", func(t *testing.T) {
t0 := time.Unix(0, 0)
c := testingclock.NewFakeClock(t0)
doneCh := make(chan struct{})
healthCheck := delayedHealthCheck(postStartHookHealthz{"test", doneCh}, c, time.Duration(10)*time.Second)
err := healthCheck.Check(nil)
if err != nil {
t.Errorf("Got %v, expected no error", err)
}
c.Step(10 * time.Second)
err = healthCheck.Check(nil)
if err != nil {
t.Errorf("Got %v, expected no error", err)
}
c.Step(1 * time.Millisecond)
err = healthCheck.Check(nil)
if err == nil || err.Error() != "not finished" {
t.Errorf("Got '%v', but expected error to be 'not finished'", err)
}
close(doneCh)
err = healthCheck.Check(nil)
if err != nil {
t.Errorf("Got %v, expected no error", err)
}
})
t.Run("test that liveness check does not toggle false even if done channel is closed early", func(t *testing.T) {
t0 := time.Unix(0, 0)
c := testingclock.NewFakeClock(t0)
doneCh := make(chan struct{})
healthCheck := delayedHealthCheck(postStartHookHealthz{"test", doneCh}, c, time.Duration(10)*time.Second)
err := healthCheck.Check(nil)
if err != nil {
t.Errorf("Got %v, expected no error", err)
}
close(doneCh)
c.Step(10 * time.Second)
err = healthCheck.Check(nil)
if err != nil {
t.Errorf("Got %v, expected no error", err)
}
c.Step(1 * time.Millisecond)
err = healthCheck.Check(nil)
if err != nil {
t.Errorf("Got %v, expected no error", err)
}
})
}
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