kubernetes util_test 源码
kubernetes util_test 代码
文件路径：/staging/src/k8s.io/client-go/util/retry/util_test.go
/*
Copyright 2016 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 retry
import (
"fmt"
"testing"
"k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/util/wait"
)
func TestRetryOnConflict(t *testing.T) {
opts := wait.Backoff{Factor: 1.0, Steps: 3}
conflictErr := errors.NewConflict(schema.GroupResource{Resource: "test"}, "other", nil)
// never returns
err := RetryOnConflict(opts, func() error {
return conflictErr
})
if err != conflictErr {
t.Errorf("unexpected error: %v", err)
}
// returns immediately
i := 0
err = RetryOnConflict(opts, func() error {
i++
return nil
})
if err != nil || i != 1 {
t.Errorf("unexpected error: %v", err)
}
// returns immediately on error
testErr := fmt.Errorf("some other error")
err = RetryOnConflict(opts, func() error {
return testErr
})
if err != testErr {
t.Errorf("unexpected error: %v", err)
}
// keeps retrying
i = 0
err = RetryOnConflict(opts, func() error {
if i < 2 {
i++
return errors.NewConflict(schema.GroupResource{Resource: "test"}, "other", nil)
}
return nil
})
if err != nil || i != 2 {
t.Errorf("unexpected error: %v", err)
}
}
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