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node_test.go
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/*
Copyright 2018 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package gceGCEDriver
import (
"context"
"fmt"
"os"
"path/filepath"
"strings"
"testing"
"time"
"k8s.io/utils/exec"
testingexec "k8s.io/utils/exec/testing"
csi "github.com/container-storage-interface/spec/lib/go/csi"
"github.com/google/go-cmp/cmp"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"k8s.io/mount-utils"
"sigs.k8s.io/gcp-compute-persistent-disk-csi-driver/pkg/deviceutils"
metadataservice "sigs.k8s.io/gcp-compute-persistent-disk-csi-driver/pkg/gce-cloud-provider/metadata"
mountmanager "sigs.k8s.io/gcp-compute-persistent-disk-csi-driver/pkg/mount-manager"
)
const defaultVolumeID = "project/test001/zones/c1/disks/testDisk"
const defaultTargetPath = "/mnt/test"
const defaultStagingPath = "/staging"
func getTestGCEDriver(t *testing.T) *GCEDriver {
return getCustomTestGCEDriver(t, mountmanager.NewFakeSafeMounter(), deviceutils.NewFakeDeviceUtils(false), metadataservice.NewFakeService())
}
func getTestGCEDriverWithCustomMounter(t *testing.T, mounter *mount.SafeFormatAndMount) *GCEDriver {
return getCustomTestGCEDriver(t, mounter, deviceutils.NewFakeDeviceUtils(false), metadataservice.NewFakeService())
}
func getCustomTestGCEDriver(t *testing.T, mounter *mount.SafeFormatAndMount, deviceUtils deviceutils.DeviceUtils, metaService metadataservice.MetadataService) *GCEDriver {
gceDriver := GetGCEDriver()
nodeServer := NewNodeServer(gceDriver, mounter, deviceUtils, metaService, mountmanager.NewFakeStatter(mounter), nil, NodeServerArgs{true, 0})
err := gceDriver.SetupGCEDriver(driver, "test-vendor", nil, nil, nil, nil, nodeServer)
if err != nil {
t.Fatalf("Failed to setup GCE Driver: %v", err)
}
return gceDriver
}
func getTestBlockingMountGCEDriver(t *testing.T, readyToExecute chan chan struct{}) *GCEDriver {
gceDriver := GetGCEDriver()
mounter := mountmanager.NewFakeSafeBlockingMounter(readyToExecute)
nodeServer := NewNodeServer(gceDriver, mounter, deviceutils.NewFakeDeviceUtils(false), metadataservice.NewFakeService(), mountmanager.NewFakeStatter(mounter), nil, NodeServerArgs{true, 0})
err := gceDriver.SetupGCEDriver(driver, "test-vendor", nil, nil, nil, nil, nodeServer)
if err != nil {
t.Fatalf("Failed to setup GCE Driver: %v", err)
}
return gceDriver
}
func getTestBlockingFormatAndMountGCEDriver(t *testing.T, readyToExecute chan chan struct{}) *GCEDriver {
gceDriver := GetGCEDriver()
mounter := mountmanager.NewFakeSafeBlockingMounter(readyToExecute)
nodeServer := NewNodeServer(gceDriver, mounter, deviceutils.NewFakeDeviceUtils(false), metadataservice.NewFakeService(), mountmanager.NewFakeStatter(mounter), nil, NodeServerArgs{true, 0}).WithSerializedFormatAndMount(5*time.Second, 1)
err := gceDriver.SetupGCEDriver(driver, "test-vendor", nil, nil, nil, nil, nodeServer)
if err != nil {
t.Fatalf("Failed to setup GCE Driver: %v", err)
}
return gceDriver
}
func makeFakeCmd(fakeCmd *testingexec.FakeCmd, cmd string, args ...string) testingexec.FakeCommandAction {
c := cmd
a := args
return func(cmd string, args ...string) exec.Cmd {
command := testingexec.InitFakeCmd(fakeCmd, c, a...)
return command
}
}
func TestNodeGetVolumeStats(t *testing.T) {
gceDriver := getTestGCEDriver(t)
ns := gceDriver.ns
tempDir, err := os.MkdirTemp("", "ngvs")
if err != nil {
t.Fatalf("Failed to set up temp dir: %v", err)
}
defer os.RemoveAll(tempDir)
targetPath := filepath.Join(tempDir, defaultTargetPath)
stagingPath := filepath.Join(tempDir, defaultStagingPath)
req := &csi.NodePublishVolumeRequest{
VolumeId: defaultVolumeID,
TargetPath: targetPath,
StagingTargetPath: stagingPath,
Readonly: false,
VolumeCapability: stdVolCap,
}
_, err = ns.NodePublishVolume(context.Background(), req)
if err != nil {
t.Fatalf("Failed to set up test by publishing default vol: %v", err)
}
testCases := []struct {
name string
volumeID string
volumePath string
expectedResp *csi.NodeGetVolumeStatsResponse
deviceCapacity int
expectErr bool
}{
{
name: "normal",
volumeID: defaultVolumeID,
volumePath: targetPath,
deviceCapacity: 300 * 1024 * 1024 * 1024, // 300 GB
expectedResp: &csi.NodeGetVolumeStatsResponse{
Usage: []*csi.VolumeUsage{
{
Unit: csi.VolumeUsage_BYTES,
Total: 300 * 1024 * 1024 * 1024, // 300 GB,
},
},
},
},
{
name: "no vol id",
volumePath: targetPath,
expectErr: true,
},
{
name: "no vol path",
volumeID: defaultVolumeID,
expectErr: true,
},
{
name: "bad vol path",
volumeID: defaultVolumeID,
volumePath: "/mnt/fake",
expectErr: true,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
actionList := []testingexec.FakeCommandAction{
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(fmt.Sprintf("%d", tc.deviceCapacity)), nil, nil
},
},
},
"blockdev",
strings.Split("--getsize64 /dev/disk/fake-path", " ")...,
),
}
mounter := mountmanager.NewFakeSafeMounterWithCustomExec(&testingexec.FakeExec{CommandScript: actionList})
gceDriver := getTestGCEDriverWithCustomMounter(t, mounter)
ns := gceDriver.ns
req := &csi.NodeGetVolumeStatsRequest{
VolumeId: tc.volumeID,
VolumePath: tc.volumePath,
}
resp, err := ns.NodeGetVolumeStats(context.Background(), req)
if err != nil && !tc.expectErr {
t.Fatalf("Got unexpected err: %v", err)
}
if err == nil && tc.expectErr {
t.Fatal("Did not get error but expected one")
}
nodeComparer := cmp.Comparer(func(a, b *csi.NodeGetVolumeStatsResponse) bool {
if a == nil {
return b == nil
}
if b == nil {
return false
}
volUsageComparer := cmp.Comparer(func(x, y *csi.VolumeUsage) bool {
if x == nil {
return y == nil
}
if y == nil {
return false
}
return x.Unit == y.Unit && x.Total == y.Total
})
return cmp.Diff(a.Usage, b.Usage, volUsageComparer) == ""
})
if diff := cmp.Diff(tc.expectedResp, resp, nodeComparer); diff != "" {
t.Errorf("NodeGetVolumeStats(%s): -want, +got \n%s", req, diff)
}
})
}
}
func TestNodeGetVolumeLimits(t *testing.T) {
gceDriver := getTestGCEDriver(t)
ns := gceDriver.ns
req := &csi.NodeGetInfoRequest{}
testCases := []struct {
name string
machineType string
expVolumeLimit int64
}{
{
name: "Predifined standard machine",
machineType: "n1-standard-1",
expVolumeLimit: volumeLimitBig,
},
{
name: "Predifined micro machine",
machineType: "f1-micro",
expVolumeLimit: volumeLimitSmall,
},
{
name: "Predifined small machine",
machineType: "g1-small",
expVolumeLimit: volumeLimitSmall,
},
{
name: "Custom machine with 1GiB Mem",
machineType: "custom-1-1024",
expVolumeLimit: volumeLimitBig,
},
{
name: "Custom machine with 4GiB Mem",
machineType: "custom-2-4096",
expVolumeLimit: volumeLimitBig,
},
{
name: "Predifined e2 machine",
machineType: "e2-micro",
expVolumeLimit: volumeLimitSmall,
},
}
for _, tc := range testCases {
t.Logf("Test case: %s", tc.name)
metadataservice.SetMachineType(tc.machineType)
res, err := ns.NodeGetInfo(context.Background(), req)
if err != nil {
t.Fatalf("Failed to get node info: %v", err)
} else {
volumeLimit := res.GetMaxVolumesPerNode()
if volumeLimit != tc.expVolumeLimit {
t.Fatalf("Expected volume limit: %v, got %v, for machine-type: %v",
tc.expVolumeLimit, volumeLimit, tc.machineType)
}
t.Logf("Get node info: %v", res)
}
}
}
func TestNodePublishVolume(t *testing.T) {
gceDriver := getTestGCEDriver(t)
ns := gceDriver.ns
tempDir, err := os.MkdirTemp("", "npv")
if err != nil {
t.Fatalf("Failed to set up temp dir: %v", err)
}
defer os.RemoveAll(tempDir)
targetPath := filepath.Join(tempDir, defaultTargetPath)
stagingPath := filepath.Join(tempDir, defaultStagingPath)
testCases := []struct {
name string
req *csi.NodePublishVolumeRequest
expErrCode codes.Code
}{
{
name: "Valid request",
req: &csi.NodePublishVolumeRequest{
VolumeId: defaultVolumeID,
TargetPath: targetPath,
StagingTargetPath: stagingPath,
Readonly: false,
VolumeCapability: stdVolCap,
},
},
{
name: "Invalid request (invalid access mode)",
req: &csi.NodePublishVolumeRequest{
VolumeId: defaultVolumeID,
TargetPath: targetPath,
StagingTargetPath: stagingPath,
Readonly: false,
VolumeCapability: createVolumeCapability(csi.VolumeCapability_AccessMode_UNKNOWN),
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (No VolumeId)",
req: &csi.NodePublishVolumeRequest{
TargetPath: targetPath,
StagingTargetPath: stagingPath,
Readonly: false,
VolumeCapability: stdVolCap,
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (No TargetPath)",
req: &csi.NodePublishVolumeRequest{
VolumeId: defaultVolumeID,
StagingTargetPath: stagingPath,
Readonly: false,
VolumeCapability: stdVolCap,
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (No StagingTargetPath)",
req: &csi.NodePublishVolumeRequest{
VolumeId: defaultVolumeID,
TargetPath: targetPath,
Readonly: false,
VolumeCapability: stdVolCap,
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (Nil VolumeCapability)",
req: &csi.NodePublishVolumeRequest{
VolumeId: defaultVolumeID,
TargetPath: targetPath,
StagingTargetPath: stagingPath,
Readonly: false,
VolumeCapability: nil,
},
expErrCode: codes.InvalidArgument,
},
}
for _, tc := range testCases {
t.Logf("Test case: %s", tc.name)
_, err := ns.NodePublishVolume(context.Background(), tc.req)
if err != nil {
serverError, ok := status.FromError(err)
if !ok {
t.Fatalf("Could not get error status code from err: %v", err)
}
if serverError.Code() != tc.expErrCode {
t.Fatalf("Expected error code: %v, got: %v. err : %v", tc.expErrCode, serverError.Code(), err)
}
continue
}
if tc.expErrCode != codes.OK {
t.Fatalf("Expected error: %v, got no error", tc.expErrCode)
}
}
}
func TestNodeUnpublishVolume(t *testing.T) {
gceDriver := getTestGCEDriver(t)
ns := gceDriver.ns
tempDir, err := os.MkdirTemp("", "nupv")
if err != nil {
t.Fatalf("Failed to set up temp dir: %v", err)
}
defer os.RemoveAll(tempDir)
targetPath := filepath.Join(tempDir, defaultTargetPath)
testCases := []struct {
name string
req *csi.NodeUnpublishVolumeRequest
expErrCode codes.Code
}{
{
name: "Valid request",
req: &csi.NodeUnpublishVolumeRequest{
VolumeId: defaultVolumeID,
TargetPath: targetPath,
},
},
{
name: "Invalid request (No VolumeId)",
req: &csi.NodeUnpublishVolumeRequest{
TargetPath: targetPath,
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (No TargetPath)",
req: &csi.NodeUnpublishVolumeRequest{
VolumeId: defaultVolumeID,
},
expErrCode: codes.InvalidArgument,
},
}
for _, tc := range testCases {
t.Logf("Test case: %s", tc.name)
_, err := ns.NodeUnpublishVolume(context.Background(), tc.req)
if err != nil {
serverError, ok := status.FromError(err)
if !ok {
t.Fatalf("Could not get error status code from err: %v", err)
}
if serverError.Code() != tc.expErrCode {
t.Fatalf("Expected error code: %v, got: %v. err : %v", tc.expErrCode, serverError.Code(), err)
}
continue
}
if tc.expErrCode != codes.OK {
t.Fatalf("Expected error: %v, got no error", tc.expErrCode)
}
}
}
func TestNodeStageVolume(t *testing.T) {
volumeID := "project/test001/zones/c1/disks/testDisk"
blockCap := &csi.VolumeCapability_Block{
Block: &csi.VolumeCapability_BlockVolume{},
}
cap := &csi.VolumeCapability{
AccessType: blockCap,
}
tempDir, err := os.MkdirTemp("", "nsv")
if err != nil {
t.Fatalf("Failed to set up temp dir: %v", err)
}
defer os.RemoveAll(tempDir)
stagingPath := filepath.Join(tempDir, defaultStagingPath)
testCases := []struct {
name string
req *csi.NodeStageVolumeRequest
deviceSize int
blockExtSize int
readonlyBit string
expResize bool
expReadAheadUpdate bool
expReadAheadKB string
readAheadSectors string
sectorSizeInBytes int
expErrCode codes.Code
}{
{
name: "Valid request, no resize because block and filesystem sizes match",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: stdVolCap,
},
deviceSize: 1,
blockExtSize: 1,
readonlyBit: "0",
expResize: false,
},
{
name: "Valid request, no resize bc readonly",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: stdVolCap,
},
deviceSize: 1,
blockExtSize: 1,
readonlyBit: "1",
expResize: false,
},
{
name: "Valid request, resize bc size",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: stdVolCap,
},
deviceSize: 5,
blockExtSize: 1,
readonlyBit: "0",
expResize: true,
},
{
name: "Valid request, no resize bc readonly capability",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: createVolumeCapability(csi.VolumeCapability_AccessMode_MULTI_NODE_READER_ONLY),
},
deviceSize: 5,
blockExtSize: 1,
readonlyBit: "0",
expResize: false,
},
{
name: "Valid request, update readahead",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: &csi.VolumeCapability{
AccessType: &csi.VolumeCapability_Mount{
Mount: &csi.VolumeCapability_MountVolume{
MountFlags: []string{"read_ahead_kb=4096"},
},
},
AccessMode: &csi.VolumeCapability_AccessMode{
Mode: csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
},
},
},
deviceSize: 5,
blockExtSize: 1,
readonlyBit: "0",
expResize: true,
expReadAheadUpdate: true,
readAheadSectors: "8192",
sectorSizeInBytes: 512,
},
{
name: "Valid request, update readahead (different sectorsize)",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: &csi.VolumeCapability{
AccessType: &csi.VolumeCapability_Mount{
Mount: &csi.VolumeCapability_MountVolume{
MountFlags: []string{"read_ahead_kb=4096"},
},
},
AccessMode: &csi.VolumeCapability_AccessMode{
Mode: csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
},
},
},
deviceSize: 5,
blockExtSize: 1,
readonlyBit: "0",
expResize: true,
expReadAheadUpdate: true,
readAheadSectors: "4194304",
sectorSizeInBytes: 1,
},
{
name: "Invalid request (Bad Access Mode)",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: createVolumeCapability(csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER),
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (No VolumeId)",
req: &csi.NodeStageVolumeRequest{
StagingTargetPath: stagingPath,
VolumeCapability: stdVolCap,
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (No StagingTargetPath)",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
VolumeCapability: stdVolCap,
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (Nil VolumeCapability)",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: nil,
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (No Mount in capability)",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: cap,
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (Invalid read_ahead_kb)",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: &csi.VolumeCapability{
AccessType: &csi.VolumeCapability_Mount{
Mount: &csi.VolumeCapability_MountVolume{
MountFlags: []string{"read_ahead_kb=not_a_number"},
},
},
AccessMode: &csi.VolumeCapability_AccessMode{
Mode: csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
},
},
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (negative read_ahead_kb)",
req: &csi.NodeStageVolumeRequest{
VolumeId: volumeID,
StagingTargetPath: stagingPath,
VolumeCapability: &csi.VolumeCapability{
AccessType: &csi.VolumeCapability_Mount{
Mount: &csi.VolumeCapability_MountVolume{
MountFlags: []string{"read_ahead_kb=-4096"},
},
},
AccessMode: &csi.VolumeCapability_AccessMode{
Mode: csi.VolumeCapability_AccessMode_SINGLE_NODE_WRITER,
},
},
},
expErrCode: codes.InvalidArgument,
},
}
for _, tc := range testCases {
t.Logf("Test case: %s", tc.name)
resizeCalled := false
readAheadUpdateCalled := false
actionList := []testingexec.FakeCommandAction{
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(fmt.Sprintf("DEVNAME=/dev/sdb\nTYPE=ext4")), nil, nil
},
},
},
"blkid",
strings.Split("-p -s TYPE -s PTTYPE -o export /dev/disk/fake-path", " ")...,
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(""), nil, nil
},
},
},
"fsck",
strings.Split("-a /dev/disk/fake-path", " ")...,
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(tc.readonlyBit), nil, nil
},
},
},
"blockdev",
strings.Split("--getro /dev/disk/fake-path", " ")...,
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(fmt.Sprintf("%d", tc.deviceSize)), nil, nil
},
},
},
"blockdev",
strings.Split("--getsize64 /dev/disk/fake-path", " ")...,
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(fmt.Sprintf("DEVNAME=/dev/sdb\nTYPE=ext4")), nil, nil
},
},
},
"blkid",
strings.Split("-p -s TYPE -s PTTYPE -o export /dev/disk/fake-path", " ")...,
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(fmt.Sprintf("block size: %d\nblock count: 1", tc.blockExtSize)), nil, nil
},
},
},
"dumpe2fs",
strings.Split("-h /dev/disk/fake-path", " ")...,
),
}
if tc.expResize {
actionList = append(actionList, []testingexec.FakeCommandAction{
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(fmt.Sprintf("DEVNAME=/dev/sdb\nTYPE=ext4")), nil, nil
},
},
},
"blkid",
strings.Split("-p -s TYPE -s PTTYPE -o export /dev/disk/fake-path", " ")...,
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
resizeCalled = true
return []byte(fmt.Sprintf("DEVNAME=/dev/sdb\nTYPE=ext4")), nil, nil
},
},
},
"resize2fs",
strings.Split("/dev/disk/fake-path", " ")...,
),
}...)
}
if tc.expReadAheadUpdate {
actionList = append(actionList, []testingexec.FakeCommandAction{
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(fmt.Sprintf("%d", tc.sectorSizeInBytes)), nil, nil
},
},
},
"blockdev",
[]string{"--getss", "/dev/disk/fake-path"}...,
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() (_ []byte, args []byte, _ error) {
readAheadUpdateCalled = true
return []byte{}, nil, nil
},
},
},
"blockdev",
[]string{"--setra", tc.readAheadSectors, "/dev/disk/fake-path"}...,
),
}...)
}
mounter := mountmanager.NewFakeSafeMounterWithCustomExec(&testingexec.FakeExec{CommandScript: actionList})
gceDriver := getTestGCEDriverWithCustomMounter(t, mounter)
ns := gceDriver.ns
_, err := ns.NodeStageVolume(context.Background(), tc.req)
if err != nil {
serverError, ok := status.FromError(err)
if !ok {
t.Fatalf("Could not get error status code from err: %v", err)
}
if serverError.Code() != tc.expErrCode {
t.Fatalf("Expected error code: %v, got: %v. err : %v", tc.expErrCode, serverError.Code(), err)
}
continue
}
if tc.expErrCode != codes.OK {
t.Fatalf("Expected error: %v, got no error", tc.expErrCode)
}
if tc.expResize == true && resizeCalled == false {
t.Fatalf("Test did not call resize, but it was expected.")
}
if tc.expResize == false && resizeCalled == true {
t.Fatalf("Test called resize, but it was not expected.")
}
if tc.expReadAheadUpdate == true && readAheadUpdateCalled == false {
t.Fatalf("Test did not update read ahead, but it was expected.")
}
if tc.expReadAheadUpdate == false && readAheadUpdateCalled == true {
t.Fatalf("Test updated read ahead, but it was not expected.")
}
}
}
// TODO: This test is too brittle due to the fakeexec package not being
// expressive enough for our purposes. The main issue being that the actions
// executed by fakeexec are executed in order of definition instead of by
// "command name" or some other way. This forces the test to "code to the
// implementation" in that we have to take each test case and order the CMD
// actions in the exact order that we expect to see them appear and hardcode the
// expected results. This is an exercise in re-implementing the current state of
// the implementation of the function under test but with hardcoded return
// values and brings no real value besides incurring a brittle test. This
// functionality is covered by e2e tests instead. Beware those who would attempt
// to un-comment
/*
func TestNodeExpandVolume(t *testing.T) {
// TODO: Add tests/functionality for non-existant volume
var resizedBytes int64 = 2000000000
volumeID := "project/test001/zones/c1/disks/testDisk"
testCases := []struct {
name string
req *csi.NodeExpandVolumeRequest
fsOrBlock string
expRespBytes int64
expErrCode codes.Code
}{
{
name: "ext4 fs expand",
req: &csi.NodeExpandVolumeRequest{
VolumeId: volumeID,
VolumePath: "some-path",
CapacityRange: &csi.CapacityRange{
RequiredBytes: resizedBytes,
},
VolumeCapability: &csi.VolumeCapability{
AccessType: &csi.VolumeCapability_Mount{
Mount: &csi.VolumeCapability_MountVolume{},
},
},
},
fsOrBlock: "ext4",
expRespBytes: resizedBytes,
},
{
name: "block device expand",
req: &csi.NodeExpandVolumeRequest{
VolumeId: volumeID,
VolumePath: "some-path",
CapacityRange: &csi.CapacityRange{
RequiredBytes: resizedBytes,
},
VolumeCapability: &csi.VolumeCapability{
AccessType: &csi.VolumeCapability_Block{
Block: &csi.VolumeCapability_BlockVolume{},
},
},
},
fsOrBlock: "block",
expRespBytes: resizedBytes,
},
{
name: "xfs fs expand",
req: &csi.NodeExpandVolumeRequest{
VolumeId: volumeID,
VolumePath: "some-path",
CapacityRange: &csi.CapacityRange{
RequiredBytes: resizedBytes,
},
VolumeCapability: &csi.VolumeCapability{
AccessType: &csi.VolumeCapability_Mount{
Mount: &csi.VolumeCapability_MountVolume{},
},
},
},
fsOrBlock: "xfs",
expRespBytes: resizedBytes,
},
}
for _, tc := range testCases {
t.Logf("Test case: %s", tc.name)
actionList := []testingexec.FakeCommandAction{
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
if tc.fsOrBlock == "block" {
// blkid returns exit code 2 when run on unformatted device
return nil, nil, exec.CodeExitError{
Err: errors.New("this is an exit error"),
Code: 2,
}
}
return []byte(fmt.Sprintf("DEVNAME=/dev/sdb\nTYPE=%s", tc.fsOrBlock)), nil, nil
},
},
},
"blkid",
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
return []byte(strconv.Itoa(int(resizedBytes))), nil, nil
},
},
},
"blockdev",
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
if tc.fsOrBlock == "ext4" {
return nil, nil, nil
}
return nil, nil, fmt.Errorf("resize fs called on device with %s", tc.fsOrBlock)
},
},
},
"resize2fs",
),
makeFakeCmd(
&testingexec.FakeCmd{
CombinedOutputScript: []testingexec.FakeAction{
func() ([]byte, []byte, error) {
if tc.fsOrBlock != "xfs" {
t.Fatalf("xfs_growfs called on device with %s", tc.fsOrBlock)
}
for _, arg := range args {
if arg == tc.req.VolumePath {
return nil, nil, nil
}
}
return nil, nil, fmt.Errorf("xfs_growfs args did not contain volume path %s", tc.req.VolumePath)
return nil,nil,nil
},
},
},
"xfs_growfs",
),
}
mounter := mountmanager.NewFakeSafeMounterWithCustomExec(&testingexec.FakeExec{CommandScript: actionList}) // TODO(dyzz) add the command list to here.
gceDriver := getTestGCEDriverWithCustomMounter(t, mounter)
resp, err := gceDriver.ns.NodeExpandVolume(context.Background(), tc.req)
if err != nil {
serverError, ok := status.FromError(err)
if !ok {
t.Fatalf("Could not get error status code from err: %v", err)
}
if serverError.Code() != tc.expErrCode {
t.Fatalf("Expected error code: %v, got: %v. err : %v", tc.expErrCode, serverError.Code(), err)
}
continue
}
if tc.expErrCode != codes.OK {
t.Fatalf("Expected error: %v, got no error", tc.expErrCode)
}
if resp.CapacityBytes != tc.expRespBytes {
t.Fatalf("Expected bytes: %v, got: %v", tc.expRespBytes, resp.CapacityBytes)
}
}
}
func makeFakeCmd(fakeCmd *testingexec.FakeCmd, cmd string, args ...string) testingexec.FakeCommandAction {
c := cmd
a := args
return func(cmd string, args ...string) exec.Cmd {
command := testingexec.InitFakeCmd(fakeCmd, c, a...)
return command
}
}
*/
func TestNodeUnstageVolume(t *testing.T) {
gceDriver := getTestGCEDriver(t)
ns := gceDriver.ns
tempDir, err := os.MkdirTemp("", "nusv")
if err != nil {
t.Fatalf("Failed to set up temp dir: %v", err)
}
defer os.RemoveAll(tempDir)
stagingPath := filepath.Join(tempDir, defaultStagingPath)
testCases := []struct {
name string
req *csi.NodeUnstageVolumeRequest
expErrCode codes.Code
}{
{
name: "Valid request",
req: &csi.NodeUnstageVolumeRequest{
VolumeId: defaultVolumeID,
StagingTargetPath: stagingPath,
},
},
{
name: "Invalid request (No VolumeId)",
req: &csi.NodeUnstageVolumeRequest{
StagingTargetPath: stagingPath,
},
expErrCode: codes.InvalidArgument,
},
{
name: "Invalid request (No StagingTargetPath)",