146 lines
3.6 KiB
Go
146 lines
3.6 KiB
Go
/*
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Copyright 2017 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 upgrade
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import (
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"fmt"
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"testing"
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"time"
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//"k8s.io/kubernetes/pkg/util/version"
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)
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// failedCreatePrepuller is a fake prepuller that errors for kube-controller-manager in the CreateFunc call
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type failedCreatePrepuller struct{}
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func NewFailedCreatePrepuller() Prepuller {
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return &failedCreatePrepuller{}
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}
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func (p *failedCreatePrepuller) CreateFunc(component string) error {
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if component == "kube-controller-manager" {
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return fmt.Errorf("boo")
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}
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return nil
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}
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func (p *failedCreatePrepuller) WaitFunc(component string) {}
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func (p *failedCreatePrepuller) DeleteFunc(component string) error {
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return nil
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}
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// foreverWaitPrepuller is a fake prepuller that basically waits "forever" (10 mins, but longer than the 10sec timeout)
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type foreverWaitPrepuller struct{}
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func NewForeverWaitPrepuller() Prepuller {
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return &foreverWaitPrepuller{}
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}
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func (p *foreverWaitPrepuller) CreateFunc(component string) error {
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return nil
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}
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func (p *foreverWaitPrepuller) WaitFunc(component string) {
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time.Sleep(10 * time.Minute)
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}
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func (p *foreverWaitPrepuller) DeleteFunc(component string) error {
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return nil
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}
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// failedDeletePrepuller is a fake prepuller that errors for kube-scheduler in the DeleteFunc call
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type failedDeletePrepuller struct{}
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func NewFailedDeletePrepuller() Prepuller {
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return &failedDeletePrepuller{}
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}
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func (p *failedDeletePrepuller) CreateFunc(component string) error {
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return nil
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}
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func (p *failedDeletePrepuller) WaitFunc(component string) {}
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func (p *failedDeletePrepuller) DeleteFunc(component string) error {
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if component == "kube-scheduler" {
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return fmt.Errorf("boo")
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}
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return nil
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}
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// goodPrepuller is a fake prepuller that works as expected
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type goodPrepuller struct{}
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func NewGoodPrepuller() Prepuller {
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return &goodPrepuller{}
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}
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func (p *goodPrepuller) CreateFunc(component string) error {
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time.Sleep(300 * time.Millisecond)
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return nil
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}
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func (p *goodPrepuller) WaitFunc(component string) {
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time.Sleep(300 * time.Millisecond)
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}
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func (p *goodPrepuller) DeleteFunc(component string) error {
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time.Sleep(300 * time.Millisecond)
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return nil
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}
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func TestPrepullImagesInParallel(t *testing.T) {
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tests := []struct {
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p Prepuller
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timeout time.Duration
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expectedErr bool
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}{
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{ // should error out; create failed
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p: NewFailedCreatePrepuller(),
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timeout: 10 * time.Second,
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expectedErr: true,
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},
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{ // should error out; timeout exceeded
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p: NewForeverWaitPrepuller(),
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timeout: 10 * time.Second,
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expectedErr: true,
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},
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{ // should error out; delete failed
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p: NewFailedDeletePrepuller(),
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timeout: 10 * time.Second,
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expectedErr: true,
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},
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{ // should work just fine
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p: NewGoodPrepuller(),
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timeout: 10 * time.Second,
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expectedErr: false,
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},
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}
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for _, rt := range tests {
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actualErr := PrepullImagesInParallel(rt.p, rt.timeout)
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if (actualErr != nil) != rt.expectedErr {
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t.Errorf(
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"failed TestPrepullImagesInParallel\n\texpected error: %t\n\tgot: %t",
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rt.expectedErr,
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(actualErr != nil),
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)
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}
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}
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}
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