kubernetes configuration_manager_test 源码
kubernetes configuration_manager_test 代码
文件路径：/staging/src/k8s.io/apiserver/pkg/admission/configuration/configuration_manager_test.go
/*
Copyright 2017 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 configuration
import (
"fmt"
"math"
"sync"
"testing"
"time"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/wait"
)
func TestTolerateBootstrapFailure(t *testing.T) {
var fakeGetSucceed bool
var fakeGetSucceedLock sync.RWMutex
fakeGetFn := func() (runtime.Object, error) {
fakeGetSucceedLock.RLock()
defer fakeGetSucceedLock.RUnlock()
if fakeGetSucceed {
return nil, nil
} else {
return nil, fmt.Errorf("this error shouldn't be exposed to caller")
}
}
poller := newPoller(fakeGetFn)
poller.bootstrapGracePeriod = 100 * time.Second
poller.bootstrapRetries = math.MaxInt32
// set failureThreshold to 0 so that one single failure will set "ready" to false.
poller.failureThreshold = 0
stopCh := make(chan struct{})
defer close(stopCh)
go poller.Run(stopCh)
go func() {
// The test might have false negative, but won't be flaky
timer := time.NewTimer(2 * time.Second)
defer timer.Stop()
<-timer.C
fakeGetSucceedLock.Lock()
defer fakeGetSucceedLock.Unlock()
fakeGetSucceed = true
}()
done := make(chan struct{})
go func(t *testing.T) {
_, err := poller.configuration()
if err != nil {
t.Errorf("unexpected error: %v", err)
}
close(done)
}(t)
<-done
}
func TestNotTolerateNonbootstrapFailure(t *testing.T) {
fakeGetFn := func() (runtime.Object, error) {
return nil, fmt.Errorf("this error should be exposed to caller")
}
poller := newPoller(fakeGetFn)
poller.bootstrapGracePeriod = 1 * time.Second
poller.interval = 1 * time.Millisecond
stopCh := make(chan struct{})
defer close(stopCh)
go poller.Run(stopCh)
// to kick the bootstrap timer
go poller.configuration()
wait.PollInfinite(1*time.Second, func() (bool, error) {
poller.lock.Lock()
defer poller.lock.Unlock()
return poller.bootstrapped, nil
})
_, err := poller.configuration()
if err == nil {
t.Errorf("unexpected no error")
}
}
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