mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
synced 2025-10-31 10:18:13 +00:00
786da1de12
This implements Bulk volume polling using ideas presented by justin in https://github.com/kubernetes/kubernetes/pull/39564 But it changes the implementation to use an interface and doesn't affect other implementations.
757 lines
21 KiB
Go
757 lines
21 KiB
Go
/*
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Copyright 2014 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 testing
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import (
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"fmt"
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"net"
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"os"
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"os/exec"
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"path"
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"strings"
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"sync"
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"testing"
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"time"
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"k8s.io/apimachinery/pkg/api/resource"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/uuid"
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utiltesting "k8s.io/client-go/util/testing"
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"k8s.io/kubernetes/pkg/api/v1"
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"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
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"k8s.io/kubernetes/pkg/cloudprovider"
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"k8s.io/kubernetes/pkg/util/io"
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"k8s.io/kubernetes/pkg/util/mount"
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utilstrings "k8s.io/kubernetes/pkg/util/strings"
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. "k8s.io/kubernetes/pkg/volume"
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)
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// fakeVolumeHost is useful for testing volume plugins.
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type fakeVolumeHost struct {
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rootDir string
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kubeClient clientset.Interface
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pluginMgr VolumePluginMgr
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cloud cloudprovider.Interface
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mounter mount.Interface
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writer io.Writer
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}
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func NewFakeVolumeHost(rootDir string, kubeClient clientset.Interface, plugins []VolumePlugin) *fakeVolumeHost {
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host := &fakeVolumeHost{rootDir: rootDir, kubeClient: kubeClient, cloud: nil}
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host.mounter = &mount.FakeMounter{}
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host.writer = &io.StdWriter{}
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host.pluginMgr.InitPlugins(plugins, host)
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return host
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}
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func (f *fakeVolumeHost) GetPluginDir(podUID string) string {
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return path.Join(f.rootDir, "plugins", podUID)
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}
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func (f *fakeVolumeHost) GetPodVolumeDir(podUID types.UID, pluginName, volumeName string) string {
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return path.Join(f.rootDir, "pods", string(podUID), "volumes", pluginName, volumeName)
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}
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func (f *fakeVolumeHost) GetPodPluginDir(podUID types.UID, pluginName string) string {
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return path.Join(f.rootDir, "pods", string(podUID), "plugins", pluginName)
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}
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func (f *fakeVolumeHost) GetKubeClient() clientset.Interface {
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return f.kubeClient
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}
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func (f *fakeVolumeHost) GetCloudProvider() cloudprovider.Interface {
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return f.cloud
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}
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func (f *fakeVolumeHost) GetMounter() mount.Interface {
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return f.mounter
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}
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func (f *fakeVolumeHost) GetWriter() io.Writer {
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return f.writer
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}
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func (f *fakeVolumeHost) NewWrapperMounter(volName string, spec Spec, pod *v1.Pod, opts VolumeOptions) (Mounter, error) {
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// The name of wrapper volume is set to "wrapped_{wrapped_volume_name}"
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wrapperVolumeName := "wrapped_" + volName
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if spec.Volume != nil {
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spec.Volume.Name = wrapperVolumeName
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}
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plug, err := f.pluginMgr.FindPluginBySpec(&spec)
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if err != nil {
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return nil, err
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}
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return plug.NewMounter(&spec, pod, opts)
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}
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func (f *fakeVolumeHost) NewWrapperUnmounter(volName string, spec Spec, podUID types.UID) (Unmounter, error) {
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// The name of wrapper volume is set to "wrapped_{wrapped_volume_name}"
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wrapperVolumeName := "wrapped_" + volName
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if spec.Volume != nil {
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spec.Volume.Name = wrapperVolumeName
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}
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plug, err := f.pluginMgr.FindPluginBySpec(&spec)
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if err != nil {
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return nil, err
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}
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return plug.NewUnmounter(spec.Name(), podUID)
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}
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// Returns the hostname of the host kubelet is running on
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func (f *fakeVolumeHost) GetHostName() string {
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return "fakeHostName"
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}
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// Returns host IP or nil in the case of error.
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func (f *fakeVolumeHost) GetHostIP() (net.IP, error) {
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return nil, fmt.Errorf("GetHostIP() not implemented")
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}
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func (f *fakeVolumeHost) GetNodeAllocatable() (v1.ResourceList, error) {
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return v1.ResourceList{}, nil
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}
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func (f *fakeVolumeHost) GetSecretFunc() func(namespace, name string) (*v1.Secret, error) {
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return func(namespace, name string) (*v1.Secret, error) {
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return f.kubeClient.Core().Secrets(namespace).Get(name, metav1.GetOptions{})
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}
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}
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func ProbeVolumePlugins(config VolumeConfig) []VolumePlugin {
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if _, ok := config.OtherAttributes["fake-property"]; ok {
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return []VolumePlugin{
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&FakeVolumePlugin{
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PluginName: "fake-plugin",
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Host: nil,
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// SomeFakeProperty: config.OtherAttributes["fake-property"] -- string, may require parsing by plugin
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},
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}
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}
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return []VolumePlugin{&FakeVolumePlugin{PluginName: "fake-plugin"}}
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}
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// FakeVolumePlugin is useful for testing. It tries to be a fully compliant
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// plugin, but all it does is make empty directories.
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// Use as:
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// volume.RegisterPlugin(&FakePlugin{"fake-name"})
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type FakeVolumePlugin struct {
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sync.RWMutex
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PluginName string
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Host VolumeHost
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Config VolumeConfig
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LastProvisionerOptions VolumeOptions
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NewAttacherCallCount int
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NewDetacherCallCount int
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Mounters []*FakeVolume
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Unmounters []*FakeVolume
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Attachers []*FakeVolume
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Detachers []*FakeVolume
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}
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var _ VolumePlugin = &FakeVolumePlugin{}
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var _ RecyclableVolumePlugin = &FakeVolumePlugin{}
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var _ DeletableVolumePlugin = &FakeVolumePlugin{}
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var _ ProvisionableVolumePlugin = &FakeVolumePlugin{}
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var _ AttachableVolumePlugin = &FakeVolumePlugin{}
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func (plugin *FakeVolumePlugin) getFakeVolume(list *[]*FakeVolume) *FakeVolume {
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volume := &FakeVolume{}
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*list = append(*list, volume)
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return volume
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}
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func (plugin *FakeVolumePlugin) Init(host VolumeHost) error {
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plugin.Lock()
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defer plugin.Unlock()
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plugin.Host = host
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return nil
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}
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func (plugin *FakeVolumePlugin) GetPluginName() string {
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plugin.RLock()
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defer plugin.RUnlock()
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return plugin.PluginName
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}
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func (plugin *FakeVolumePlugin) GetVolumeName(spec *Spec) (string, error) {
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return spec.Name(), nil
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}
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func (plugin *FakeVolumePlugin) CanSupport(spec *Spec) bool {
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// TODO: maybe pattern-match on spec.Name() to decide?
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return true
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}
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func (plugin *FakeVolumePlugin) RequiresRemount() bool {
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return false
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}
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func (plugin *FakeVolumePlugin) SupportsMountOption() bool {
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return true
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}
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func (plugin *FakeVolumePlugin) SupportsBulkVolumeVerification() bool {
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return false
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}
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func (plugin *FakeVolumePlugin) NewMounter(spec *Spec, pod *v1.Pod, opts VolumeOptions) (Mounter, error) {
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plugin.Lock()
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defer plugin.Unlock()
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volume := plugin.getFakeVolume(&plugin.Mounters)
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volume.PodUID = pod.UID
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volume.VolName = spec.Name()
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volume.Plugin = plugin
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volume.MetricsNil = MetricsNil{}
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return volume, nil
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}
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func (plugin *FakeVolumePlugin) GetMounters() (Mounters []*FakeVolume) {
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plugin.RLock()
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defer plugin.RUnlock()
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return plugin.Mounters
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}
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func (plugin *FakeVolumePlugin) NewUnmounter(volName string, podUID types.UID) (Unmounter, error) {
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plugin.Lock()
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defer plugin.Unlock()
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volume := plugin.getFakeVolume(&plugin.Unmounters)
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volume.PodUID = podUID
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volume.VolName = volName
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volume.Plugin = plugin
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volume.MetricsNil = MetricsNil{}
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return volume, nil
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}
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func (plugin *FakeVolumePlugin) GetUnmounters() (Unmounters []*FakeVolume) {
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plugin.RLock()
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defer plugin.RUnlock()
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return plugin.Unmounters
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}
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func (plugin *FakeVolumePlugin) NewAttacher() (Attacher, error) {
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plugin.Lock()
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defer plugin.Unlock()
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plugin.NewAttacherCallCount = plugin.NewAttacherCallCount + 1
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return plugin.getFakeVolume(&plugin.Attachers), nil
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}
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func (plugin *FakeVolumePlugin) GetAttachers() (Attachers []*FakeVolume) {
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plugin.RLock()
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defer plugin.RUnlock()
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return plugin.Attachers
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}
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func (plugin *FakeVolumePlugin) GetNewAttacherCallCount() int {
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plugin.RLock()
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defer plugin.RUnlock()
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return plugin.NewAttacherCallCount
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}
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func (plugin *FakeVolumePlugin) NewDetacher() (Detacher, error) {
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plugin.Lock()
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defer plugin.Unlock()
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plugin.NewDetacherCallCount = plugin.NewDetacherCallCount + 1
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return plugin.getFakeVolume(&plugin.Detachers), nil
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}
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func (plugin *FakeVolumePlugin) GetDetachers() (Detachers []*FakeVolume) {
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plugin.RLock()
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defer plugin.RUnlock()
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return plugin.Detachers
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}
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func (plugin *FakeVolumePlugin) GetNewDetacherCallCount() int {
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plugin.RLock()
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defer plugin.RUnlock()
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return plugin.NewDetacherCallCount
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}
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func (plugin *FakeVolumePlugin) Recycle(pvName string, spec *Spec, eventRecorder RecycleEventRecorder) error {
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return nil
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}
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func (plugin *FakeVolumePlugin) NewDeleter(spec *Spec) (Deleter, error) {
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return &FakeDeleter{"/attributesTransferredFromSpec", MetricsNil{}}, nil
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}
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func (plugin *FakeVolumePlugin) NewProvisioner(options VolumeOptions) (Provisioner, error) {
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plugin.Lock()
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defer plugin.Unlock()
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plugin.LastProvisionerOptions = options
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return &FakeProvisioner{options, plugin.Host}, nil
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}
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func (plugin *FakeVolumePlugin) GetAccessModes() []v1.PersistentVolumeAccessMode {
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return []v1.PersistentVolumeAccessMode{}
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}
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func (plugin *FakeVolumePlugin) ConstructVolumeSpec(volumeName, mountPath string) (*Spec, error) {
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return nil, nil
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}
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func (plugin *FakeVolumePlugin) GetDeviceMountRefs(deviceMountPath string) ([]string, error) {
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return []string{}, nil
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}
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type FakeVolume struct {
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sync.RWMutex
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PodUID types.UID
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VolName string
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Plugin *FakeVolumePlugin
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MetricsNil
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SetUpCallCount int
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TearDownCallCount int
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AttachCallCount int
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DetachCallCount int
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WaitForAttachCallCount int
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MountDeviceCallCount int
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UnmountDeviceCallCount int
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GetDeviceMountPathCallCount int
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}
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func (_ *FakeVolume) GetAttributes() Attributes {
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return Attributes{
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ReadOnly: false,
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Managed: true,
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SupportsSELinux: true,
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}
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}
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func (fv *FakeVolume) CanMount() error {
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return nil
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}
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func (fv *FakeVolume) SetUp(fsGroup *int64) error {
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fv.Lock()
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defer fv.Unlock()
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fv.SetUpCallCount++
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return fv.SetUpAt(fv.getPath(), fsGroup)
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}
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func (fv *FakeVolume) GetSetUpCallCount() int {
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fv.RLock()
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defer fv.RUnlock()
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return fv.SetUpCallCount
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}
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func (fv *FakeVolume) SetUpAt(dir string, fsGroup *int64) error {
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return os.MkdirAll(dir, 0750)
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}
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func (fv *FakeVolume) GetPath() string {
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fv.RLock()
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defer fv.RUnlock()
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return fv.getPath()
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}
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func (fv *FakeVolume) getPath() string {
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return path.Join(fv.Plugin.Host.GetPodVolumeDir(fv.PodUID, utilstrings.EscapeQualifiedNameForDisk(fv.Plugin.PluginName), fv.VolName))
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}
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func (fv *FakeVolume) TearDown() error {
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fv.Lock()
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defer fv.Unlock()
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fv.TearDownCallCount++
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return fv.TearDownAt(fv.getPath())
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}
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func (fv *FakeVolume) GetTearDownCallCount() int {
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fv.RLock()
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defer fv.RUnlock()
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return fv.TearDownCallCount
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}
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func (fv *FakeVolume) TearDownAt(dir string) error {
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return os.RemoveAll(dir)
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}
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func (fv *FakeVolume) Attach(spec *Spec, nodeName types.NodeName) (string, error) {
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fv.Lock()
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defer fv.Unlock()
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fv.AttachCallCount++
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return "", nil
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}
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func (fv *FakeVolume) GetAttachCallCount() int {
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fv.RLock()
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defer fv.RUnlock()
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return fv.AttachCallCount
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}
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func (fv *FakeVolume) WaitForAttach(spec *Spec, devicePath string, spectimeout time.Duration) (string, error) {
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fv.Lock()
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defer fv.Unlock()
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fv.WaitForAttachCallCount++
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return "", nil
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}
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func (fv *FakeVolume) GetWaitForAttachCallCount() int {
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fv.RLock()
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defer fv.RUnlock()
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return fv.WaitForAttachCallCount
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}
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func (fv *FakeVolume) GetDeviceMountPath(spec *Spec) (string, error) {
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fv.Lock()
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defer fv.Unlock()
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fv.GetDeviceMountPathCallCount++
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return "", nil
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}
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func (fv *FakeVolume) MountDevice(spec *Spec, devicePath string, deviceMountPath string) error {
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fv.Lock()
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defer fv.Unlock()
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fv.MountDeviceCallCount++
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return nil
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}
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func (fv *FakeVolume) GetMountDeviceCallCount() int {
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fv.RLock()
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defer fv.RUnlock()
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return fv.MountDeviceCallCount
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}
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func (fv *FakeVolume) Detach(deviceMountPath string, nodeName types.NodeName) error {
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fv.Lock()
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defer fv.Unlock()
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fv.DetachCallCount++
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return nil
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}
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func (fv *FakeVolume) VolumesAreAttached(spec []*Spec, nodeName types.NodeName) (map[*Spec]bool, error) {
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fv.Lock()
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defer fv.Unlock()
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return nil, nil
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}
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func (fv *FakeVolume) GetDetachCallCount() int {
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fv.RLock()
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defer fv.RUnlock()
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return fv.DetachCallCount
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}
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func (fv *FakeVolume) UnmountDevice(globalMountPath string) error {
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fv.Lock()
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defer fv.Unlock()
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fv.UnmountDeviceCallCount++
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return nil
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}
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type FakeDeleter struct {
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path string
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MetricsNil
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}
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func (fd *FakeDeleter) Delete() error {
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// nil is success, else error
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return nil
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}
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func (fd *FakeDeleter) GetPath() string {
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return fd.path
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}
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type FakeProvisioner struct {
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Options VolumeOptions
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Host VolumeHost
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}
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func (fc *FakeProvisioner) Provision() (*v1.PersistentVolume, error) {
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fullpath := fmt.Sprintf("/tmp/hostpath_pv/%s", uuid.NewUUID())
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pv := &v1.PersistentVolume{
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ObjectMeta: metav1.ObjectMeta{
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Name: fc.Options.PVName,
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Annotations: map[string]string{
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"kubernetes.io/createdby": "fakeplugin-provisioner",
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},
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},
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeReclaimPolicy: fc.Options.PersistentVolumeReclaimPolicy,
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AccessModes: fc.Options.PVC.Spec.AccessModes,
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Capacity: v1.ResourceList{
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v1.ResourceName(v1.ResourceStorage): fc.Options.PVC.Spec.Resources.Requests[v1.ResourceName(v1.ResourceStorage)],
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},
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PersistentVolumeSource: v1.PersistentVolumeSource{
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HostPath: &v1.HostPathVolumeSource{
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Path: fullpath,
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},
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},
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},
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}
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return pv, nil
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}
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// FindEmptyDirectoryUsageOnTmpfs finds the expected usage of an empty directory existing on
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// a tmpfs filesystem on this system.
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func FindEmptyDirectoryUsageOnTmpfs() (*resource.Quantity, error) {
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tmpDir, err := utiltesting.MkTmpdir("metrics_du_test")
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if err != nil {
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return nil, err
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}
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defer os.RemoveAll(tmpDir)
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out, err := exec.Command("nice", "-n", "19", "du", "-s", "-B", "1", tmpDir).CombinedOutput()
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if err != nil {
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return nil, fmt.Errorf("failed command 'du' on %s with error %v", tmpDir, err)
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}
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used, err := resource.ParseQuantity(strings.Fields(string(out))[0])
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if err != nil {
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return nil, fmt.Errorf("failed to parse 'du' output %s due to error %v", out, err)
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}
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used.Format = resource.BinarySI
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return &used, nil
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}
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|
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// VerifyAttachCallCount ensures that at least one of the Attachers for this
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// plugin has the expectedAttachCallCount number of calls. Otherwise it returns
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// an error.
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func VerifyAttachCallCount(
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expectedAttachCallCount int,
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fakeVolumePlugin *FakeVolumePlugin) error {
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for _, attacher := range fakeVolumePlugin.GetAttachers() {
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actualCallCount := attacher.GetAttachCallCount()
|
|
if actualCallCount == expectedAttachCallCount {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf(
|
|
"No attachers have expected AttachCallCount. Expected: <%v>.",
|
|
expectedAttachCallCount)
|
|
}
|
|
|
|
// VerifyZeroAttachCalls ensures that all of the Attachers for this plugin have
|
|
// a zero AttachCallCount. Otherwise it returns an error.
|
|
func VerifyZeroAttachCalls(fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, attacher := range fakeVolumePlugin.GetAttachers() {
|
|
actualCallCount := attacher.GetAttachCallCount()
|
|
if actualCallCount != 0 {
|
|
return fmt.Errorf(
|
|
"At least one attacher has non-zero AttachCallCount: <%v>.",
|
|
actualCallCount)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// VerifyWaitForAttachCallCount ensures that at least one of the Mounters for
|
|
// this plugin has the expectedWaitForAttachCallCount number of calls. Otherwise
|
|
// it returns an error.
|
|
func VerifyWaitForAttachCallCount(
|
|
expectedWaitForAttachCallCount int,
|
|
fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, attacher := range fakeVolumePlugin.GetAttachers() {
|
|
actualCallCount := attacher.GetWaitForAttachCallCount()
|
|
if actualCallCount == expectedWaitForAttachCallCount {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf(
|
|
"No Attachers have expected WaitForAttachCallCount. Expected: <%v>.",
|
|
expectedWaitForAttachCallCount)
|
|
}
|
|
|
|
// VerifyZeroWaitForAttachCallCount ensures that all Attachers for this plugin
|
|
// have a zero WaitForAttachCallCount. Otherwise it returns an error.
|
|
func VerifyZeroWaitForAttachCallCount(fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, attacher := range fakeVolumePlugin.GetAttachers() {
|
|
actualCallCount := attacher.GetWaitForAttachCallCount()
|
|
if actualCallCount != 0 {
|
|
return fmt.Errorf(
|
|
"At least one attacher has non-zero WaitForAttachCallCount: <%v>.",
|
|
actualCallCount)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// VerifyMountDeviceCallCount ensures that at least one of the Mounters for
|
|
// this plugin has the expectedMountDeviceCallCount number of calls. Otherwise
|
|
// it returns an error.
|
|
func VerifyMountDeviceCallCount(
|
|
expectedMountDeviceCallCount int,
|
|
fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, attacher := range fakeVolumePlugin.GetAttachers() {
|
|
actualCallCount := attacher.GetMountDeviceCallCount()
|
|
if actualCallCount == expectedMountDeviceCallCount {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf(
|
|
"No Attachers have expected MountDeviceCallCount. Expected: <%v>.",
|
|
expectedMountDeviceCallCount)
|
|
}
|
|
|
|
// VerifyZeroMountDeviceCallCount ensures that all Attachers for this plugin
|
|
// have a zero MountDeviceCallCount. Otherwise it returns an error.
|
|
func VerifyZeroMountDeviceCallCount(fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, attacher := range fakeVolumePlugin.GetAttachers() {
|
|
actualCallCount := attacher.GetMountDeviceCallCount()
|
|
if actualCallCount != 0 {
|
|
return fmt.Errorf(
|
|
"At least one attacher has non-zero MountDeviceCallCount: <%v>.",
|
|
actualCallCount)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// VerifySetUpCallCount ensures that at least one of the Mounters for this
|
|
// plugin has the expectedSetUpCallCount number of calls. Otherwise it returns
|
|
// an error.
|
|
func VerifySetUpCallCount(
|
|
expectedSetUpCallCount int,
|
|
fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, mounter := range fakeVolumePlugin.GetMounters() {
|
|
actualCallCount := mounter.GetSetUpCallCount()
|
|
if actualCallCount >= expectedSetUpCallCount {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf(
|
|
"No Mounters have expected SetUpCallCount. Expected: <%v>.",
|
|
expectedSetUpCallCount)
|
|
}
|
|
|
|
// VerifyZeroSetUpCallCount ensures that all Mounters for this plugin have a
|
|
// zero SetUpCallCount. Otherwise it returns an error.
|
|
func VerifyZeroSetUpCallCount(fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, mounter := range fakeVolumePlugin.GetMounters() {
|
|
actualCallCount := mounter.GetSetUpCallCount()
|
|
if actualCallCount != 0 {
|
|
return fmt.Errorf(
|
|
"At least one mounter has non-zero SetUpCallCount: <%v>.",
|
|
actualCallCount)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// VerifyTearDownCallCount ensures that at least one of the Unounters for this
|
|
// plugin has the expectedTearDownCallCount number of calls. Otherwise it
|
|
// returns an error.
|
|
func VerifyTearDownCallCount(
|
|
expectedTearDownCallCount int,
|
|
fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, unmounter := range fakeVolumePlugin.GetUnmounters() {
|
|
actualCallCount := unmounter.GetTearDownCallCount()
|
|
if actualCallCount >= expectedTearDownCallCount {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf(
|
|
"No Unmounters have expected SetUpCallCount. Expected: <%v>.",
|
|
expectedTearDownCallCount)
|
|
}
|
|
|
|
// VerifyZeroTearDownCallCount ensures that all Mounters for this plugin have a
|
|
// zero TearDownCallCount. Otherwise it returns an error.
|
|
func VerifyZeroTearDownCallCount(fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, mounter := range fakeVolumePlugin.GetMounters() {
|
|
actualCallCount := mounter.GetTearDownCallCount()
|
|
if actualCallCount != 0 {
|
|
return fmt.Errorf(
|
|
"At least one mounter has non-zero TearDownCallCount: <%v>.",
|
|
actualCallCount)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// VerifyDetachCallCount ensures that at least one of the Attachers for this
|
|
// plugin has the expectedDetachCallCount number of calls. Otherwise it returns
|
|
// an error.
|
|
func VerifyDetachCallCount(
|
|
expectedDetachCallCount int,
|
|
fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, detacher := range fakeVolumePlugin.GetDetachers() {
|
|
actualCallCount := detacher.GetDetachCallCount()
|
|
if actualCallCount == expectedDetachCallCount {
|
|
return nil
|
|
}
|
|
}
|
|
|
|
return fmt.Errorf(
|
|
"No Detachers have expected DetachCallCount. Expected: <%v>.",
|
|
expectedDetachCallCount)
|
|
}
|
|
|
|
// VerifyZeroDetachCallCount ensures that all Detachers for this plugin have a
|
|
// zero DetachCallCount. Otherwise it returns an error.
|
|
func VerifyZeroDetachCallCount(fakeVolumePlugin *FakeVolumePlugin) error {
|
|
for _, detacher := range fakeVolumePlugin.GetDetachers() {
|
|
actualCallCount := detacher.GetDetachCallCount()
|
|
if actualCallCount != 0 {
|
|
return fmt.Errorf(
|
|
"At least one detacher has non-zero DetachCallCount: <%v>.",
|
|
actualCallCount)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// GetTestVolumePluginMgr creates, initializes, and returns a test volume plugin
|
|
// manager and fake volume plugin using a fake volume host.
|
|
func GetTestVolumePluginMgr(
|
|
t *testing.T) (*VolumePluginMgr, *FakeVolumePlugin) {
|
|
v := NewFakeVolumeHost(
|
|
"", /* rootDir */
|
|
nil, /* kubeClient */
|
|
nil, /* plugins */
|
|
)
|
|
plugins := ProbeVolumePlugins(VolumeConfig{})
|
|
if err := v.pluginMgr.InitPlugins(plugins, v); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
return &v.pluginMgr, plugins[0].(*FakeVolumePlugin)
|
|
}
|
|
|
|
// CreateTestPVC returns a provisionable PVC for tests
|
|
func CreateTestPVC(capacity string, accessModes []v1.PersistentVolumeAccessMode) *v1.PersistentVolumeClaim {
|
|
claim := v1.PersistentVolumeClaim{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "dummy",
|
|
Namespace: "default",
|
|
},
|
|
Spec: v1.PersistentVolumeClaimSpec{
|
|
AccessModes: accessModes,
|
|
Resources: v1.ResourceRequirements{
|
|
Requests: v1.ResourceList{
|
|
v1.ResourceName(v1.ResourceStorage): resource.MustParse(capacity),
|
|
},
|
|
},
|
|
},
|
|
}
|
|
return &claim
|
|
}
|