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Merge pull request #41189 from NickrenREN/kubelet-dswp-test
Automatic merge from submit-queue (batch tested with PRs 41189, 43818) add dswp unit test case
This commit is contained in:
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commit
063a5ca6fd
@ -5,6 +5,7 @@ licenses(["notice"])
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load(
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"@io_bazel_rules_go//go:def.bzl",
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"go_library",
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"go_test",
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)
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go_library(
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@ -42,3 +43,25 @@ filegroup(
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srcs = [":package-srcs"],
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tags = ["automanaged"],
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)
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go_test(
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name = "go_default_test",
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srcs = ["desired_state_of_world_populator_test.go"],
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library = ":go_default_library",
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tags = ["automanaged"],
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deps = [
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"//pkg/api/v1:go_default_library",
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"//pkg/client/clientset_generated/clientset/fake:go_default_library",
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"//pkg/kubelet/container/testing:go_default_library",
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"//pkg/kubelet/pod:go_default_library",
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"//pkg/kubelet/pod/testing:go_default_library",
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"//pkg/kubelet/secret:go_default_library",
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"//pkg/kubelet/status:go_default_library",
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"//pkg/kubelet/status/testing:go_default_library",
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"//pkg/kubelet/volumemanager/cache:go_default_library",
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"//pkg/volume/testing:go_default_library",
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"//pkg/volume/util/types:go_default_library",
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"//pkg/volume/util/volumehelper:go_default_library",
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"//vendor:k8s.io/apimachinery/pkg/apis/meta/v1",
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],
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)
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@ -0,0 +1,179 @@
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/*
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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 populator
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import (
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"testing"
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"time"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/client/clientset_generated/clientset/fake"
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containertest "k8s.io/kubernetes/pkg/kubelet/container/testing"
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kubepod "k8s.io/kubernetes/pkg/kubelet/pod"
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podtest "k8s.io/kubernetes/pkg/kubelet/pod/testing"
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"k8s.io/kubernetes/pkg/kubelet/secret"
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"k8s.io/kubernetes/pkg/kubelet/status"
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statustest "k8s.io/kubernetes/pkg/kubelet/status/testing"
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"k8s.io/kubernetes/pkg/kubelet/volumemanager/cache"
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volumetesting "k8s.io/kubernetes/pkg/volume/testing"
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"k8s.io/kubernetes/pkg/volume/util/types"
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"k8s.io/kubernetes/pkg/volume/util/volumehelper"
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)
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func TestFindAndAddNewPods_FindAndRemoveDeletedPods(t *testing.T) {
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fakeVolumePluginMgr, _ := volumetesting.GetTestVolumePluginMgr(t)
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fakeClient := &fake.Clientset{}
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fakeSecretManager := secret.NewFakeManager()
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fakePodManager := kubepod.NewBasicPodManager(
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podtest.NewFakeMirrorClient(), fakeSecretManager)
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fakesDSW := cache.NewDesiredStateOfWorld(fakeVolumePluginMgr)
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fakeRuntime := &containertest.FakeRuntime{}
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fakeStatusManager := status.NewManager(fakeClient, fakePodManager, &statustest.FakePodDeletionSafetyProvider{})
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dswp := &desiredStateOfWorldPopulator{
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kubeClient: fakeClient,
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loopSleepDuration: 100 * time.Millisecond,
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getPodStatusRetryDuration: 2 * time.Second,
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podManager: fakePodManager,
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podStatusProvider: fakeStatusManager,
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desiredStateOfWorld: fakesDSW,
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pods: processedPods{
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processedPods: make(map[types.UniquePodName]bool)},
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kubeContainerRuntime: fakeRuntime,
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keepTerminatedPodVolumes: false,
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}
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pod := &v1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "dswp-test-pod",
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UID: "dswp-test-pod-uid",
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Namespace: "dswp-test",
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},
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Spec: v1.PodSpec{
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Volumes: []v1.Volume{
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{
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Name: "dswp-test-volume-name",
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VolumeSource: v1.VolumeSource{
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GCEPersistentDisk: &v1.GCEPersistentDiskVolumeSource{
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PDName: "dswp-test-fake-device",
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},
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},
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},
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},
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},
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Status: v1.PodStatus{
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Phase: v1.PodPhase("Running"),
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},
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}
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fakePodManager.AddPod(pod)
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podName := volumehelper.GetUniquePodName(pod)
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generatedVolumeName := "fake-plugin/" + pod.Spec.Volumes[0].Name
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dswp.findAndAddNewPods()
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if !dswp.pods.processedPods[podName] {
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t.Fatalf("Failed to record that the volumes for the specified pod: %s have been processed by the populator", podName)
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}
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expectedVolumeName := v1.UniqueVolumeName(generatedVolumeName)
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volumeExists := fakesDSW.VolumeExists(expectedVolumeName)
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if !volumeExists {
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t.Fatalf(
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"VolumeExists(%q) failed. Expected: <true> Actual: <%v>",
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expectedVolumeName,
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volumeExists)
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}
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if podExistsInVolume := fakesDSW.PodExistsInVolume(
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podName, expectedVolumeName); !podExistsInVolume {
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t.Fatalf(
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"DSW PodExistsInVolume returned incorrect value. Expected: <true> Actual: <%v>",
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podExistsInVolume)
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}
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verifyVolumeExistsInVolumesToMount(
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t, v1.UniqueVolumeName(generatedVolumeName), false /* expectReportedInUse */, fakesDSW)
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//let the pod be terminated
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podGet, exist := fakePodManager.GetPodByName(pod.Namespace, pod.Name)
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if !exist {
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t.Fatalf("Failed to get pod by pod name: %s and namespace: %s", pod.Name, pod.Namespace)
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}
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podGet.Status.Phase = v1.PodFailed
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//pod is added to fakePodManager but fakeRuntime can not get the pod,so here findAndRemoveDeletedPods() will remove the pod and volumes it is mounted
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dswp.findAndRemoveDeletedPods()
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if dswp.pods.processedPods[podName] {
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t.Fatalf("Failed to remove pods from desired state of world since they no longer exist")
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}
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volumeExists = fakesDSW.VolumeExists(expectedVolumeName)
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if volumeExists {
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t.Fatalf(
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"VolumeExists(%q) failed. Expected: <false> Actual: <%v>",
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expectedVolumeName,
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volumeExists)
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}
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if podExistsInVolume := fakesDSW.PodExistsInVolume(
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podName, expectedVolumeName); podExistsInVolume {
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t.Fatalf(
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"DSW PodExistsInVolume returned incorrect value. Expected: <false> Actual: <%v>",
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podExistsInVolume)
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}
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volumesToMount := fakesDSW.GetVolumesToMount()
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for _, volume := range volumesToMount {
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if volume.VolumeName == expectedVolumeName {
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t.Fatalf(
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"Found volume %v in the list of desired state of world volumes to mount. Expected not",
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expectedVolumeName)
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}
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}
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}
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func verifyVolumeExistsInVolumesToMount(t *testing.T, expectedVolumeName v1.UniqueVolumeName, expectReportedInUse bool, dsw cache.DesiredStateOfWorld) {
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volumesToMount := dsw.GetVolumesToMount()
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for _, volume := range volumesToMount {
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if volume.VolumeName == expectedVolumeName {
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if volume.ReportedInUse != expectReportedInUse {
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t.Fatalf(
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"Found volume %v in the list of VolumesToMount, but ReportedInUse incorrect. Expected: <%v> Actual: <%v>",
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expectedVolumeName,
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expectReportedInUse,
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volume.ReportedInUse)
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}
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return
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}
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}
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t.Fatalf(
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"Could not find volume %v in the list of desired state of world volumes to mount %+v",
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expectedVolumeName,
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volumesToMount)
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}
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