83 lines
2.3 KiB
Go
83 lines
2.3 KiB
Go
/*
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Copyright 2019 The Kubernetes Authors All rights reserved.
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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 util
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import (
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"fmt"
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"testing"
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"time"
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"github.com/cenkalti/backoff"
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"github.com/pkg/errors"
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"k8s.io/apimachinery/pkg/labels"
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commonutil "k8s.io/minikube/pkg/util"
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)
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// WaitForBusyboxRunning waits until busybox pod to be running
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func WaitForBusyboxRunning(t *testing.T, namespace string, miniProfile string) error {
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client, err := commonutil.GetClient(miniProfile)
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if err != nil {
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return errors.Wrap(err, "getting kubernetes client")
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}
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selector := labels.SelectorFromSet(labels.Set(map[string]string{"integration-test": "busybox"}))
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return commonutil.WaitForPodsWithLabelRunning(client, namespace, selector)
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}
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// Retry tries the callback for a number of attempts, with a delay between attempts
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func Retry(t *testing.T, callback func() error, d time.Duration, attempts int) (err error) {
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for i := 0; i < attempts; i++ {
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err = callback()
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if err == nil {
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return nil
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}
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time.Sleep(d)
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}
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return err
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}
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// Retry2 tries the callback for a number of attempts, with a delay without *testing.T
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func Retry2(callback func() error, d time.Duration, attempts int) (err error) {
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for i := 0; i < attempts; i++ {
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err = callback()
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if err == nil {
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return nil
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}
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time.Sleep(d)
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}
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return err
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}
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// RetryX is expontential backoff retry
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func RetryX(callback func() error, initInterv time.Duration, maxTime time.Duration) error {
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b := backoff.NewExponentialBackOff()
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b.MaxElapsedTime = maxTime
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b.InitialInterval = initInterv
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b.RandomizationFactor = 0.5
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b.Multiplier = 1.5
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b.Reset()
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return backoff.Retry(callback, b)
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}
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// Logf writes logs to stdout if -v is set.
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func Logf(str string, args ...interface{}) {
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if !testing.Verbose() {
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return
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}
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fmt.Printf(" %s | ", time.Now().Format("15:04:05"))
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fmt.Println(fmt.Sprintf(str, args...))
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}
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