mirror of https://github.com/k3s-io/k3s
125 lines
3.1 KiB
Go
125 lines
3.1 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 checkpoint
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import (
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"io/ioutil"
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"os"
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"reflect"
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"testing"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/apis/core"
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"k8s.io/kubernetes/pkg/kubelet/checkpointmanager"
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)
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// TestWriteLoadDeletePods validates all combinations of write, load, and delete
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func TestWriteLoadDeletePods(t *testing.T) {
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testPods := []struct {
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pod *v1.Pod
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written bool
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}{
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{
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pod: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "Foo",
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Annotations: map[string]string{core.BootstrapCheckpointAnnotationKey: "true"},
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UID: "1",
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},
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},
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written: true,
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},
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{
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pod: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "Foo2",
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Annotations: map[string]string{core.BootstrapCheckpointAnnotationKey: "true"},
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UID: "2",
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},
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},
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written: true,
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},
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{
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pod: &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "Bar",
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UID: "3",
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},
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},
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written: false,
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},
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}
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dir, err := ioutil.TempDir("", "checkpoint")
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if err != nil {
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t.Errorf("Failed to allocate temp directory for TestWriteLoadDeletePods error=%v", err)
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}
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defer os.RemoveAll(dir)
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cpm, err := checkpointmanager.NewCheckpointManager(dir)
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if err != nil {
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t.Errorf("Failed to initialize checkpoint manager error=%v", err)
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}
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for _, p := range testPods {
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// Write pods should always pass unless there is an fs error
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if err := WritePod(cpm, p.pod); err != nil {
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t.Errorf("Failed to Write Pod: %v", err)
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}
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}
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// verify the correct written files are loaded from disk
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pods, err := LoadPods(cpm)
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if err != nil {
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t.Errorf("Failed to Load Pods: %v", err)
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}
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// loop through contents and check make sure
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// what was loaded matched the expected results.
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for _, p := range testPods {
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pname := p.pod.GetName()
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var lpod *v1.Pod
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for _, check := range pods {
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if check.GetName() == pname {
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lpod = check
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break
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}
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}
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if p.written {
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if lpod != nil {
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if !reflect.DeepEqual(p.pod, lpod) {
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t.Errorf("expected %#v, \ngot %#v", p.pod, lpod)
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}
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} else {
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t.Errorf("Got unexpected result for %v, should have been loaded", pname)
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}
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} else if lpod != nil {
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t.Errorf("Got unexpected result for %v, should not have been loaded", pname)
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}
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err = DeletePod(cpm, p.pod)
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if err != nil {
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t.Errorf("Failed to delete pod %v", pname)
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}
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}
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// finally validate the contents of the directory is empty.
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files, err := ioutil.ReadDir(dir)
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if err != nil {
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t.Errorf("Failed to read directory %v", dir)
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}
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if len(files) > 0 {
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t.Errorf("Directory %v should be empty but found %#v", dir, files)
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}
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}
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