367f879131
This patch removes mount.Exec entirely and instead uses the common utility from k8s.io/utils/exec. The fake exec implementation found in k8s.io/utils/exec differs a bit than mount.Exec, with the ability to pre-script expected calls to Command.CombinedOutput(), so tests that previously relied on a callback mechanism to produce specific output have been updated to use that mechanism.
556 lines
16 KiB
Go
556 lines
16 KiB
Go
/*
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Copyright 2015 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 iscsi
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import (
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"fmt"
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"os"
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"strings"
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"testing"
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v1 "k8s.io/api/core/v1"
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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/client-go/kubernetes/fake"
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utiltesting "k8s.io/client-go/util/testing"
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"k8s.io/utils/exec/testing"
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"k8s.io/kubernetes/pkg/util/mount"
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"k8s.io/kubernetes/pkg/volume"
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volumetest "k8s.io/kubernetes/pkg/volume/testing"
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)
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func TestCanSupport(t *testing.T) {
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tmpDir, err := utiltesting.MkTmpdir("iscsi_test")
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if err != nil {
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t.Fatalf("error creating temp dir: %v", err)
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}
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defer os.RemoveAll(tmpDir)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/iscsi")
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if err != nil {
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t.Errorf("Can't find the plugin by name")
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}
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if plug.GetPluginName() != "kubernetes.io/iscsi" {
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t.Errorf("Wrong name: %s", plug.GetPluginName())
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}
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if plug.CanSupport(&volume.Spec{Volume: &v1.Volume{VolumeSource: v1.VolumeSource{}}}) {
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t.Errorf("Expected false")
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}
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if plug.CanSupport(&volume.Spec{}) {
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t.Errorf("Expected false")
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}
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if !plug.CanSupport(&volume.Spec{Volume: &v1.Volume{VolumeSource: v1.VolumeSource{ISCSI: &v1.ISCSIVolumeSource{}}}}) {
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t.Errorf("Expected true")
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}
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if plug.CanSupport(&volume.Spec{PersistentVolume: &v1.PersistentVolume{Spec: v1.PersistentVolumeSpec{}}}) {
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t.Errorf("Expected false")
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}
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if plug.CanSupport(&volume.Spec{PersistentVolume: &v1.PersistentVolume{Spec: v1.PersistentVolumeSpec{PersistentVolumeSource: v1.PersistentVolumeSource{}}}}) {
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t.Errorf("Expected false")
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}
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if !plug.CanSupport(&volume.Spec{PersistentVolume: &v1.PersistentVolume{Spec: v1.PersistentVolumeSpec{PersistentVolumeSource: v1.PersistentVolumeSource{ISCSI: &v1.ISCSIPersistentVolumeSource{}}}}}) {
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t.Errorf("Expected true")
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}
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}
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func TestGetAccessModes(t *testing.T) {
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tmpDir, err := utiltesting.MkTmpdir("iscsi_test")
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if err != nil {
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t.Fatalf("error creating temp dir: %v", err)
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}
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defer os.RemoveAll(tmpDir)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, nil, nil))
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plug, err := plugMgr.FindPersistentPluginByName("kubernetes.io/iscsi")
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if err != nil {
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t.Errorf("Can't find the plugin by name")
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}
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if !volumetest.ContainsAccessMode(plug.GetAccessModes(), v1.ReadWriteOnce) || !volumetest.ContainsAccessMode(plug.GetAccessModes(), v1.ReadOnlyMany) {
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t.Errorf("Expected two AccessModeTypes: %s and %s", v1.ReadWriteOnce, v1.ReadOnlyMany)
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}
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}
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type fakeDiskManager struct {
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tmpDir string
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attachCalled bool
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detachCalled bool
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}
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func NewFakeDiskManager() *fakeDiskManager {
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return &fakeDiskManager{
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tmpDir: utiltesting.MkTmpdirOrDie("iscsi_test"),
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}
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}
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func (fake *fakeDiskManager) Cleanup() {
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os.RemoveAll(fake.tmpDir)
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}
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func (fake *fakeDiskManager) MakeGlobalPDName(disk iscsiDisk) string {
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return fake.tmpDir
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}
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func (fake *fakeDiskManager) MakeGlobalVDPDName(disk iscsiDisk) string {
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return fake.tmpDir
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}
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func (fake *fakeDiskManager) AttachDisk(b iscsiDiskMounter) (string, error) {
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globalPath := b.manager.MakeGlobalPDName(*b.iscsiDisk)
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err := os.MkdirAll(globalPath, 0750)
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if err != nil {
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return "", err
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}
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// Simulate the global mount so that the fakeMounter returns the
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// expected number of mounts for the attached disk.
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b.mounter.Mount(globalPath, globalPath, b.fsType, nil)
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return "/dev/sdb", nil
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}
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func (fake *fakeDiskManager) DetachDisk(c iscsiDiskUnmounter, mntPath string) error {
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globalPath := c.manager.MakeGlobalPDName(*c.iscsiDisk)
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err := os.RemoveAll(globalPath)
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if err != nil {
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return err
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}
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return nil
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}
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func (fake *fakeDiskManager) DetachBlockISCSIDisk(c iscsiDiskUnmapper, mntPath string) error {
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globalPath := c.manager.MakeGlobalVDPDName(*c.iscsiDisk)
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err := os.RemoveAll(globalPath)
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if err != nil {
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return err
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}
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return nil
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}
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func doTestPlugin(t *testing.T, spec *volume.Spec) {
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tmpDir, err := utiltesting.MkTmpdir("iscsi_test")
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if err != nil {
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t.Fatalf("error creating temp dir: %v", err)
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}
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defer os.RemoveAll(tmpDir)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, nil, nil))
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plug, err := plugMgr.FindPluginByName("kubernetes.io/iscsi")
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if err != nil {
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t.Errorf("Can't find the plugin by name")
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}
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fakeManager := NewFakeDiskManager()
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defer fakeManager.Cleanup()
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fakeMounter := mount.NewFakeMounter(nil)
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fakeExec := &testingexec.FakeExec{}
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mounter, err := plug.(*iscsiPlugin).newMounterInternal(spec, types.UID("poduid"), fakeManager, fakeMounter, fakeExec, nil)
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if err != nil {
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t.Errorf("Failed to make a new Mounter: %v", err)
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}
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if mounter == nil {
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t.Error("Got a nil Mounter")
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}
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path := mounter.GetPath()
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expectedPath := fmt.Sprintf("%s/pods/poduid/volumes/kubernetes.io~iscsi/vol1", tmpDir)
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if path != expectedPath {
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t.Errorf("Unexpected path, expected %q, got: %q", expectedPath, path)
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}
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if err := mounter.SetUp(volume.MounterArgs{}); err != nil {
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t.Errorf("Expected success, got: %v", err)
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}
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if _, err := os.Stat(path); err != nil {
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if os.IsNotExist(err) {
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t.Errorf("SetUp() failed, volume path not created: %s", path)
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} else {
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t.Errorf("SetUp() failed: %v", err)
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}
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}
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fakeManager2 := NewFakeDiskManager()
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defer fakeManager2.Cleanup()
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unmounter, err := plug.(*iscsiPlugin).newUnmounterInternal("vol1", types.UID("poduid"), fakeManager2, fakeMounter, fakeExec)
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if err != nil {
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t.Errorf("Failed to make a new Unmounter: %v", err)
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}
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if unmounter == nil {
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t.Error("Got a nil Unmounter")
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}
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if err := unmounter.TearDown(); err != nil {
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t.Errorf("Expected success, got: %v", err)
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}
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if _, err := os.Stat(path); err == nil {
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t.Errorf("TearDown() failed, volume path still exists: %s", path)
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} else if !os.IsNotExist(err) {
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t.Errorf("TearDown() failed: %v", err)
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}
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}
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func TestPluginVolume(t *testing.T) {
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vol := &v1.Volume{
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Name: "vol1",
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VolumeSource: v1.VolumeSource{
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ISCSI: &v1.ISCSIVolumeSource{
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TargetPortal: "127.0.0.1:3260",
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IQN: "iqn.2014-12.server:storage.target01",
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FSType: "ext4",
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Lun: 0,
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},
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},
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}
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doTestPlugin(t, volume.NewSpecFromVolume(vol))
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}
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func TestPluginPersistentVolume(t *testing.T) {
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vol := &v1.PersistentVolume{
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ObjectMeta: metav1.ObjectMeta{
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Name: "vol1",
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},
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{
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ISCSI: &v1.ISCSIPersistentVolumeSource{
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TargetPortal: "127.0.0.1:3260",
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IQN: "iqn.2014-12.server:storage.target01",
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FSType: "ext4",
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Lun: 0,
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},
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},
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},
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}
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doTestPlugin(t, volume.NewSpecFromPersistentVolume(vol, false))
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}
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func TestPersistentClaimReadOnlyFlag(t *testing.T) {
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tmpDir, err := utiltesting.MkTmpdir("iscsi_test")
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if err != nil {
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t.Fatalf("error creating temp dir: %v", err)
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}
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defer os.RemoveAll(tmpDir)
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pv := &v1.PersistentVolume{
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ObjectMeta: metav1.ObjectMeta{
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Name: "pvA",
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},
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{
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ISCSI: &v1.ISCSIPersistentVolumeSource{
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TargetPortal: "127.0.0.1:3260",
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IQN: "iqn.2014-12.server:storage.target01",
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FSType: "ext4",
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Lun: 0,
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},
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},
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ClaimRef: &v1.ObjectReference{
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Name: "claimA",
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},
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},
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}
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claim := &v1.PersistentVolumeClaim{
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ObjectMeta: metav1.ObjectMeta{
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Name: "claimA",
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Namespace: "nsA",
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},
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Spec: v1.PersistentVolumeClaimSpec{
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VolumeName: "pvA",
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},
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Status: v1.PersistentVolumeClaimStatus{
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Phase: v1.ClaimBound,
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},
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}
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client := fake.NewSimpleClientset(pv, claim)
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plugMgr := volume.VolumePluginMgr{}
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plugMgr.InitPlugins(ProbeVolumePlugins(), nil /* prober */, volumetest.NewFakeVolumeHost(tmpDir, client, nil))
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plug, _ := plugMgr.FindPluginByName(iscsiPluginName)
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// readOnly bool is supplied by persistent-claim volume source when its mounter creates other volumes
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spec := volume.NewSpecFromPersistentVolume(pv, true)
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pod := &v1.Pod{ObjectMeta: metav1.ObjectMeta{UID: types.UID("poduid")}}
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mounter, _ := plug.NewMounter(spec, pod, volume.VolumeOptions{})
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if mounter == nil {
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t.Fatalf("Got a nil Mounter")
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}
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if !mounter.GetAttributes().ReadOnly {
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t.Errorf("Expected true for mounter.IsReadOnly")
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}
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}
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func TestPortalMounter(t *testing.T) {
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if portal := portalMounter("127.0.0.1"); portal != "127.0.0.1:3260" {
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t.Errorf("wrong portal: %s", portal)
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}
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if portal := portalMounter("127.0.0.1:3260"); portal != "127.0.0.1:3260" {
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t.Errorf("wrong portal: %s", portal)
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}
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}
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type testcase struct {
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name string
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defaultNs string
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spec *volume.Spec
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// Expected return of the test
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expectedName string
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expectedNs string
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expectedIface string
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expectedError error
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expectedDiscoveryCHAP bool
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expectedSessionCHAP bool
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}
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func TestGetSecretNameAndNamespaceForPV(t *testing.T) {
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tests := []testcase{
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{
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name: "persistent volume source",
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defaultNs: "default",
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spec: &volume.Spec{
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PersistentVolume: &v1.PersistentVolume{
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{
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ISCSI: &v1.ISCSIPersistentVolumeSource{
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TargetPortal: "127.0.0.1:3260",
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IQN: "iqn.2014-12.server:storage.target01",
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FSType: "ext4",
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Lun: 0,
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SecretRef: &v1.SecretReference{
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Name: "name",
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Namespace: "ns",
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},
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},
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},
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},
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},
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},
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expectedName: "name",
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expectedNs: "ns",
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expectedError: nil,
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},
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{
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name: "persistent volume source without namespace",
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defaultNs: "default",
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spec: &volume.Spec{
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PersistentVolume: &v1.PersistentVolume{
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{
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ISCSI: &v1.ISCSIPersistentVolumeSource{
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TargetPortal: "127.0.0.1:3260",
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IQN: "iqn.2014-12.server:storage.target01",
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FSType: "ext4",
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Lun: 0,
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SecretRef: &v1.SecretReference{
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Name: "name",
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},
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},
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},
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},
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},
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},
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expectedName: "name",
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expectedNs: "default",
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expectedError: nil,
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},
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{
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name: "pod volume source",
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defaultNs: "default",
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spec: &volume.Spec{
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Volume: &v1.Volume{
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VolumeSource: v1.VolumeSource{
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ISCSI: &v1.ISCSIVolumeSource{
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TargetPortal: "127.0.0.1:3260",
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IQN: "iqn.2014-12.server:storage.target01",
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FSType: "ext4",
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Lun: 0,
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},
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},
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},
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},
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expectedName: "",
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expectedNs: "",
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expectedError: nil,
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},
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}
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for _, testcase := range tests {
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resultName, resultNs, err := getISCSISecretNameAndNamespace(testcase.spec, testcase.defaultNs)
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if err != testcase.expectedError || resultName != testcase.expectedName || resultNs != testcase.expectedNs {
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t.Errorf("%s failed: expected err=%v ns=%q name=%q, got %v/%q/%q", testcase.name, testcase.expectedError, testcase.expectedNs, testcase.expectedName,
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err, resultNs, resultName)
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}
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}
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}
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func TestGetISCSIInitiatorInfo(t *testing.T) {
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tests := []testcase{
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{
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name: "persistent volume source",
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spec: &volume.Spec{
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PersistentVolume: &v1.PersistentVolume{
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{
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ISCSI: &v1.ISCSIPersistentVolumeSource{
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TargetPortal: "127.0.0.1:3260",
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IQN: "iqn.2014-12.server:storage.target01",
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FSType: "ext4",
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Lun: 0,
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ISCSIInterface: "tcp",
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},
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},
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},
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},
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},
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expectedIface: "tcp",
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expectedError: nil,
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},
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{
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name: "pod volume source",
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spec: &volume.Spec{
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Volume: &v1.Volume{
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VolumeSource: v1.VolumeSource{
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ISCSI: &v1.ISCSIVolumeSource{
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TargetPortal: "127.0.0.1:3260",
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IQN: "iqn.2014-12.server:storage.target01",
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FSType: "ext4",
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Lun: 0,
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ISCSIInterface: "tcp",
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},
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},
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},
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},
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expectedIface: "tcp",
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expectedError: nil,
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},
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}
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for _, testcase := range tests {
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resultIface, _, err := getISCSIInitiatorInfo(testcase.spec)
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if err != testcase.expectedError || resultIface != testcase.expectedIface {
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t.Errorf("%s failed: expected err=%v iface=%s, got %v/%s", testcase.name, testcase.expectedError, testcase.expectedIface,
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err, resultIface)
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}
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}
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}
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|
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func TestGetISCSICHAP(t *testing.T) {
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tests := []testcase{
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{
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name: "persistent volume source",
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spec: &volume.Spec{
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PersistentVolume: &v1.PersistentVolume{
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Spec: v1.PersistentVolumeSpec{
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PersistentVolumeSource: v1.PersistentVolumeSource{
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ISCSI: &v1.ISCSIPersistentVolumeSource{
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DiscoveryCHAPAuth: true,
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SessionCHAPAuth: true,
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},
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},
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},
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},
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},
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expectedDiscoveryCHAP: true,
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expectedSessionCHAP: true,
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expectedError: nil,
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},
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{
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name: "pod volume source",
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spec: &volume.Spec{
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Volume: &v1.Volume{
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VolumeSource: v1.VolumeSource{
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ISCSI: &v1.ISCSIVolumeSource{
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DiscoveryCHAPAuth: true,
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SessionCHAPAuth: true,
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},
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},
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},
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},
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expectedDiscoveryCHAP: true,
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expectedSessionCHAP: true,
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expectedError: nil,
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},
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{
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name: "no volume",
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spec: &volume.Spec{},
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expectedDiscoveryCHAP: false,
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expectedSessionCHAP: false,
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expectedError: fmt.Errorf("Spec does not reference an ISCSI volume type"),
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},
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}
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|
for _, testcase := range tests {
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|
resultDiscoveryCHAP, err := getISCSIDiscoveryCHAPInfo(testcase.spec)
|
|
resultSessionCHAP, err := getISCSISessionCHAPInfo(testcase.spec)
|
|
switch testcase.name {
|
|
case "no volume":
|
|
if err.Error() != testcase.expectedError.Error() || resultDiscoveryCHAP != testcase.expectedDiscoveryCHAP || resultSessionCHAP != testcase.expectedSessionCHAP {
|
|
t.Errorf("%s failed: expected err=%v DiscoveryCHAP=%v SessionCHAP=%v, got %v/%v/%v",
|
|
testcase.name, testcase.expectedError, testcase.expectedDiscoveryCHAP, testcase.expectedSessionCHAP,
|
|
err, resultDiscoveryCHAP, resultSessionCHAP)
|
|
}
|
|
default:
|
|
if err != testcase.expectedError || resultDiscoveryCHAP != testcase.expectedDiscoveryCHAP || resultSessionCHAP != testcase.expectedSessionCHAP {
|
|
t.Errorf("%s failed: expected err=%v DiscoveryCHAP=%v SessionCHAP=%v, got %v/%v/%v", testcase.name, testcase.expectedError, testcase.expectedDiscoveryCHAP, testcase.expectedSessionCHAP,
|
|
err, resultDiscoveryCHAP, resultSessionCHAP)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetVolumeSpec(t *testing.T) {
|
|
path := "plugins/kubernetes.io/iscsi/volumeDevices/iface-default/127.0.0.1:3260-iqn.2014-12.server:storage.target01-lun-0"
|
|
spec, _ := getVolumeSpecFromGlobalMapPath("test", path)
|
|
|
|
portal := spec.PersistentVolume.Spec.PersistentVolumeSource.ISCSI.TargetPortal
|
|
if portal != "127.0.0.1:3260" {
|
|
t.Errorf("wrong portal: %v", portal)
|
|
}
|
|
iqn := spec.PersistentVolume.Spec.PersistentVolumeSource.ISCSI.IQN
|
|
if iqn != "iqn.2014-12.server:storage.target01" {
|
|
t.Errorf("wrong iqn: %v", iqn)
|
|
}
|
|
lun := spec.PersistentVolume.Spec.PersistentVolumeSource.ISCSI.Lun
|
|
if lun != 0 {
|
|
t.Errorf("wrong lun: %v", lun)
|
|
}
|
|
iface := spec.PersistentVolume.Spec.PersistentVolumeSource.ISCSI.ISCSIInterface
|
|
if iface != "default" {
|
|
t.Errorf("wrong ISCSIInterface: %v", iface)
|
|
}
|
|
}
|
|
|
|
func TestGetVolumeSpec_no_lun(t *testing.T) {
|
|
path := "plugins/kubernetes.io/iscsi/volumeDevices/iface-default/127.0.0.1:3260-iqn.2014-12.server:storage.target01"
|
|
_, err := getVolumeSpecFromGlobalMapPath("test", path)
|
|
if !strings.Contains(err.Error(), "malformatted mnt path") {
|
|
t.Errorf("should get error: malformatted mnt path")
|
|
}
|
|
}
|
|
|
|
func TestGetVolumeSpec_no_iface(t *testing.T) {
|
|
path := "plugins/kubernetes.io/iscsi/volumeDevices/default/127.0.0.1:3260-iqn.2014-12.server:storage.target01-lun-0"
|
|
_, err := getVolumeSpecFromGlobalMapPath("test", path)
|
|
if !strings.Contains(err.Error(), "failed to retrieve iface") {
|
|
t.Errorf("should get error: failed to retrieve iface")
|
|
}
|
|
}
|