428 lines
11 KiB
Go
428 lines
11 KiB
Go
/*
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Copyright 2020 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 nfs
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import (
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"os"
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"path/filepath"
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"reflect"
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"strings"
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"testing"
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"fmt"
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"github.com/container-storage-interface/spec/lib/go/csi"
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"golang.org/x/net/context"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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mount "k8s.io/mount-utils"
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)
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const (
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testServer = "test-server"
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testBaseDir = "test-base-dir"
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testBaseDirNested = "test/base/dir"
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testCSIVolume = "test-csi"
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testVolumeID = "test-server/test-base-dir/test-csi"
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testVolumeIDNested = "test-server/test/base/dir/test-csi"
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)
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// for Windows support in the future
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var (
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testShare = filepath.Join(string(filepath.Separator), testBaseDir, string(filepath.Separator), testCSIVolume)
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)
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func initTestController(t *testing.T) *ControllerServer {
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var perm *uint32
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mounter := &mount.FakeMounter{MountPoints: []mount.MountPoint{}}
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driver := NewNFSdriver("", "", "", perm)
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driver.ns = NewNodeServer(driver, mounter)
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cs := NewControllerServer(driver)
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cs.workingMountDir = "/tmp"
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return cs
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}
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func teardown() {
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err := os.RemoveAll("/tmp/" + testCSIVolume)
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if err != nil {
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fmt.Print(err.Error())
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fmt.Printf("\n")
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fmt.Printf("\033[1;91m%s\033[0m\n", "> Teardown failed")
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} else {
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fmt.Printf("\033[1;36m%s\033[0m\n", "> Teardown completed")
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}
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}
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func TestMain(m *testing.M) {
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code := m.Run()
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teardown()
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os.Exit(code)
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}
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func TestCreateVolume(t *testing.T) {
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cases := []struct {
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name string
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req *csi.CreateVolumeRequest
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resp *csi.CreateVolumeResponse
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expectErr bool
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}{
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{
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name: "valid defaults",
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req: &csi.CreateVolumeRequest{
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Name: testCSIVolume,
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VolumeCapabilities: []*csi.VolumeCapability{
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{
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AccessType: &csi.VolumeCapability_Mount{
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Mount: &csi.VolumeCapability_MountVolume{},
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},
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AccessMode: &csi.VolumeCapability_AccessMode{
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Mode: csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
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},
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},
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},
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Parameters: map[string]string{
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paramServer: testServer,
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paramShare: testBaseDir,
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},
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},
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resp: &csi.CreateVolumeResponse{
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Volume: &csi.Volume{
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VolumeId: testVolumeID,
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VolumeContext: map[string]string{
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paramServer: testServer,
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paramShare: testShare,
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},
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},
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},
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},
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{
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name: "name empty",
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req: &csi.CreateVolumeRequest{
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VolumeCapabilities: []*csi.VolumeCapability{
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{
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AccessType: &csi.VolumeCapability_Mount{
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Mount: &csi.VolumeCapability_MountVolume{},
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},
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AccessMode: &csi.VolumeCapability_AccessMode{
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Mode: csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
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},
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},
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},
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Parameters: map[string]string{
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paramServer: testServer,
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paramShare: testBaseDir,
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},
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},
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expectErr: true,
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},
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{
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name: "invalid volume capability",
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req: &csi.CreateVolumeRequest{
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Name: testCSIVolume,
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VolumeCapabilities: []*csi.VolumeCapability{
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{
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AccessMode: &csi.VolumeCapability_AccessMode{
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Mode: csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
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},
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},
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},
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Parameters: map[string]string{
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paramServer: testServer,
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paramShare: testBaseDir,
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},
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},
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expectErr: true,
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},
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{
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name: "invalid create context",
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req: &csi.CreateVolumeRequest{
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Name: testCSIVolume,
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VolumeCapabilities: []*csi.VolumeCapability{
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{
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AccessType: &csi.VolumeCapability_Mount{
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Mount: &csi.VolumeCapability_MountVolume{},
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},
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AccessMode: &csi.VolumeCapability_AccessMode{
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Mode: csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
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},
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},
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},
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Parameters: map[string]string{
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"unknown-parameter": "foo",
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},
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},
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expectErr: true,
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},
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}
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for _, test := range cases {
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test := test //pin
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t.Run(test.name, func(t *testing.T) {
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// Setup
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cs := initTestController(t)
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// Run
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resp, err := cs.CreateVolume(context.TODO(), test.req)
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// Verify
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if !test.expectErr && err != nil {
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t.Errorf("test %q failed: %v", test.name, err)
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}
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if test.expectErr && err == nil {
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t.Errorf("test %q failed; got success", test.name)
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}
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if !reflect.DeepEqual(resp, test.resp) {
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t.Errorf("test %q failed: got resp %+v, expected %+v", test.name, resp, test.resp)
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}
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if !test.expectErr {
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info, err := os.Stat(filepath.Join(cs.workingMountDir, test.req.Name, test.req.Name))
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if err != nil {
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t.Errorf("test %q failed: couldn't find volume subdirectory: %v", test.name, err)
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}
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if !info.IsDir() {
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t.Errorf("test %q failed: subfile not a directory", test.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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func TestDeleteVolume(t *testing.T) {
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cases := []struct {
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desc string
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req *csi.DeleteVolumeRequest
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resp *csi.DeleteVolumeResponse
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expectedErr error
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}{
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{
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desc: "Volume ID missing",
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req: &csi.DeleteVolumeRequest{},
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resp: nil,
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expectedErr: status.Error(codes.InvalidArgument, "Volume ID missing in request"),
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},
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{
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desc: "Valid request",
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req: &csi.DeleteVolumeRequest{VolumeId: testVolumeID},
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resp: &csi.DeleteVolumeResponse{},
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expectedErr: nil,
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},
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}
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for _, test := range cases {
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test := test //pin
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t.Run(test.desc, func(t *testing.T) {
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// Setup
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cs := initTestController(t)
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_ = os.MkdirAll(filepath.Join(cs.workingMountDir, testCSIVolume), os.ModePerm)
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_, _ = os.Create(filepath.Join(cs.workingMountDir, testCSIVolume, testCSIVolume))
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// Run
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resp, err := cs.DeleteVolume(context.TODO(), test.req)
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// Verify
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if test.expectedErr == nil && err != nil {
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t.Errorf("test %q failed: %v", test.desc, err)
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}
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if test.expectedErr != nil && err == nil {
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t.Errorf("test %q failed; expected error %v, got success", test.desc, test.expectedErr)
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}
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if !reflect.DeepEqual(resp, test.resp) {
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t.Errorf("test %q failed: got resp %+v, expected %+v", test.desc, resp, test.resp)
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}
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if _, err := os.Stat(filepath.Join(cs.workingMountDir, testCSIVolume, testCSIVolume)); test.expectedErr == nil && !os.IsNotExist(err) {
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t.Errorf("test %q failed: expected volume subdirectory deleted, it still exists", test.desc)
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}
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})
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}
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}
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func TestValidateVolumeCapabilities(t *testing.T) {
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cases := []struct {
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desc string
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req *csi.ValidateVolumeCapabilitiesRequest
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resp *csi.ValidateVolumeCapabilitiesResponse
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expectedErr error
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}{
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{
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desc: "Volume ID missing",
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req: &csi.ValidateVolumeCapabilitiesRequest{},
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resp: nil,
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expectedErr: status.Error(codes.InvalidArgument, "Volume ID missing in request"),
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},
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{
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desc: "Volume capabilities missing",
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req: &csi.ValidateVolumeCapabilitiesRequest{VolumeId: testVolumeID},
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resp: nil,
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expectedErr: status.Error(codes.InvalidArgument, "Volume capabilities missing in request"),
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},
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{
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desc: "valid request",
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req: &csi.ValidateVolumeCapabilitiesRequest{
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VolumeId: testVolumeID,
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VolumeCapabilities: []*csi.VolumeCapability{
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{
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AccessType: &csi.VolumeCapability_Mount{
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Mount: &csi.VolumeCapability_MountVolume{},
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},
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AccessMode: &csi.VolumeCapability_AccessMode{
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Mode: csi.VolumeCapability_AccessMode_MULTI_NODE_MULTI_WRITER,
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},
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},
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},
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},
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resp: &csi.ValidateVolumeCapabilitiesResponse{Message: ""},
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expectedErr: nil,
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},
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}
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for _, test := range cases {
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test := test //pin
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t.Run(test.desc, func(t *testing.T) {
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// Setup
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cs := initTestController(t)
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// Run
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resp, err := cs.ValidateVolumeCapabilities(context.TODO(), test.req)
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// Verify
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if test.expectedErr == nil && err != nil {
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t.Errorf("test %q failed: %v", test.desc, err)
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}
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if test.expectedErr != nil && err == nil {
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t.Errorf("test %q failed; expected error %v, got success", test.desc, test.expectedErr)
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}
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if !reflect.DeepEqual(resp, test.resp) {
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t.Errorf("test %q failed: got resp %+v, expected %+v", test.desc, resp, test.resp)
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}
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})
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}
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}
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func TestControllerGetCapabilities(t *testing.T) {
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cases := []struct {
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desc string
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req *csi.ControllerGetCapabilitiesRequest
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resp *csi.ControllerGetCapabilitiesResponse
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expectedErr error
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}{
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{
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desc: "valid request",
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req: &csi.ControllerGetCapabilitiesRequest{},
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resp: &csi.ControllerGetCapabilitiesResponse{
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Capabilities: []*csi.ControllerServiceCapability{
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{
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Type: &csi.ControllerServiceCapability_Rpc{
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Rpc: &csi.ControllerServiceCapability_RPC{
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Type: csi.ControllerServiceCapability_RPC_CREATE_DELETE_VOLUME,
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},
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},
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},
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},
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},
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expectedErr: nil,
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},
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}
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for _, test := range cases {
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test := test //pin
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t.Run(test.desc, func(t *testing.T) {
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// Setup
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cs := initTestController(t)
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// Run
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resp, err := cs.ControllerGetCapabilities(context.TODO(), test.req)
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// Verify
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if test.expectedErr == nil && err != nil {
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t.Errorf("test %q failed: %v", test.desc, err)
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}
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if test.expectedErr != nil && err == nil {
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t.Errorf("test %q failed; expected error %v, got success", test.desc, test.expectedErr)
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}
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if !reflect.DeepEqual(resp, test.resp) {
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t.Errorf("test %q failed: got resp %+v, expected %+v", test.desc, resp, test.resp)
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}
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})
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}
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}
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func TestNfsVolFromId(t *testing.T) {
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cases := []struct {
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name string
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req string
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resp *nfsVolume
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expectErr bool
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}{
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{
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name: "ID only server",
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req: testServer,
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resp: nil,
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expectErr: true,
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},
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{
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name: "ID missing subDir",
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req: strings.Join([]string{testServer, testBaseDir}, "/"),
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resp: nil,
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expectErr: true,
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},
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{
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name: "valid request single baseDir",
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req: testVolumeID,
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resp: &nfsVolume{
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id: testVolumeID,
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server: testServer,
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baseDir: testBaseDir,
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subDir: testCSIVolume,
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},
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expectErr: false,
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},
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{
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name: "valid request nested baseDir",
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req: testVolumeIDNested,
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resp: &nfsVolume{
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id: testVolumeIDNested,
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server: testServer,
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baseDir: testBaseDirNested,
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subDir: testCSIVolume,
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},
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expectErr: false,
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},
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}
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for _, test := range cases {
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test := test //pin
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t.Run(test.name, func(t *testing.T) {
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// Setup
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cs := initTestController(t)
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// Run
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resp, err := cs.getNfsVolFromID(test.req)
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// Verify
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if !test.expectErr && err != nil {
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t.Errorf("test %q failed: %v", test.name, err)
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}
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if test.expectErr && err == nil {
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t.Errorf("test %q failed; got success", test.name)
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}
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if !reflect.DeepEqual(resp, test.resp) {
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t.Errorf("test %q failed: got resp %+v, expected %+v", test.name, resp, test.resp)
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}
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})
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}
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}
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