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/*
Copyright 2019 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 plugins
import (
"reflect"
"testing"
v1 "k8s.io/api/core/v1"
storage "k8s.io/api/storage/v1"
)
const (
normalVolumeID = "vol-02399794d890f9375"
awsVolumeID = "aws:///vol-02399794d890f9375"
awsZoneVolumeID = "aws://us-west-2a/vol-02399794d890f9375"
invalidVolumeID = "aws://us-west-2a/02399794d890f9375"
)
func TestKubernetesVolumeIDToEBSVolumeID(t *testing.T) {
testCases := []struct {
name string
kubernetesID string
ebsVolumeID string
expErr bool
}{
{
name: "Normal ID format",
kubernetesID: normalVolumeID,
ebsVolumeID: normalVolumeID,
},
{
name: "aws:///{volumeId} format",
kubernetesID: awsVolumeID,
ebsVolumeID: normalVolumeID,
},
{
name: "aws://{zone}/{volumeId} format",
kubernetesID: awsZoneVolumeID,
ebsVolumeID: normalVolumeID,
},
{
name: "fails on invalid volume ID",
kubernetesID: invalidVolumeID,
expErr: true,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
actual, err := KubernetesVolumeIDToEBSVolumeID(tc.kubernetesID)
if err != nil {
if !tc.expErr {
t.Errorf("KubernetesVolumeIDToEBSVolumeID failed %v", err)
}
} else {
if actual != tc.ebsVolumeID {
t.Errorf("Wrong EBS Volume ID. actual: %s expected: %s", actual, tc.ebsVolumeID)
}
}
})
}
}
func TestTranslateEBSInTreeStorageClassToCSI(t *testing.T) {
translator := NewAWSElasticBlockStoreCSITranslator()
cases := []struct {
name string
sc *storage.StorageClass
expSc *storage.StorageClass
expErr bool
}{
{
name: "translate normal",
sc: NewStorageClass(map[string]string{"foo": "bar"}, nil),
expSc: NewStorageClass(map[string]string{"foo": "bar"}, nil),
},
{
name: "translate empty map",
sc: NewStorageClass(map[string]string{}, nil),
expSc: NewStorageClass(map[string]string{}, nil),
},
{
name: "translate with fstype",
sc: NewStorageClass(map[string]string{"fstype": "ext3"}, nil),
expSc: NewStorageClass(map[string]string{"csi.storage.k8s.io/fstype": "ext3"}, nil),
},
}
for _, tc := range cases {
t.Logf("Testing %v", tc.name)
got, err := translator.TranslateInTreeStorageClassToCSI(tc.sc)
if err != nil && !tc.expErr {
t.Errorf("Did not expect error but got: %v", err)
}
if err == nil && tc.expErr {
t.Errorf("Expected error, but did not get one.")
}
if !reflect.DeepEqual(got, tc.expSc) {
t.Errorf("Got parameters: %v, expected :%v", got, tc.expSc)
}
}
}
func TestTranslateInTreeInlineVolumeToCSI(t *testing.T) {
translator := NewAWSElasticBlockStoreCSITranslator()
cases := []struct {
name string
volumeSource v1.VolumeSource
expPVName string
expErr bool
}{
{
name: "Normal ID format",
volumeSource: v1.VolumeSource{
AWSElasticBlockStore: &v1.AWSElasticBlockStoreVolumeSource{
VolumeID: normalVolumeID,
},
},
expPVName: "ebs.csi.aws.com-" + normalVolumeID,
},
{
name: "aws:///{volumeId} format",
volumeSource: v1.VolumeSource{
AWSElasticBlockStore: &v1.AWSElasticBlockStoreVolumeSource{
VolumeID: awsVolumeID,
},
},
expPVName: "ebs.csi.aws.com-" + normalVolumeID,
},
{
name: "aws://{zone}/{volumeId} format",
volumeSource: v1.VolumeSource{
AWSElasticBlockStore: &v1.AWSElasticBlockStoreVolumeSource{
VolumeID: awsZoneVolumeID,
},
},
expPVName: "ebs.csi.aws.com-" + normalVolumeID,
},
{
name: "fails on invalid volume ID",
volumeSource: v1.VolumeSource{
AWSElasticBlockStore: &v1.AWSElasticBlockStoreVolumeSource{
VolumeID: invalidVolumeID,
},
},
expErr: true,
},
{
name: "fails on empty volume source",
volumeSource: v1.VolumeSource{},
expErr: true,
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
t.Logf("Testing %v", tc.name)
got, err := translator.TranslateInTreeInlineVolumeToCSI(&v1.Volume{Name: "volume", VolumeSource: tc.volumeSource})
if err != nil && !tc.expErr {
t.Fatalf("Did not expect error but got: %v", err)
}
if err == nil && tc.expErr {
t.Fatalf("Expected error, but did not get one.")
}
if err == nil {
if !reflect.DeepEqual(got.Name, tc.expPVName) {
t.Errorf("Got PV name: %v, expected :%v", got.Name, tc.expPVName)
}
if !reflect.DeepEqual(got.Spec.CSI.VolumeHandle, normalVolumeID) {
t.Errorf("Got PV volumeHandle: %v, expected :%v", got.Spec.CSI.VolumeHandle, normalVolumeID)
}
}
})
}
}
func TestGetAwsRegionFromZones(t *testing.T) {
cases := []struct {
name string
zones []string
expRegion string
expErr bool
}{
{
name: "Commercial zone",
zones: []string{"us-west-2a", "us-west-2b"},
expRegion: "us-west-2",
},
{
name: "Govcloud zone",
zones: []string{"us-gov-east-1a"},
expRegion: "us-gov-east-1",
},
{
name: "Wavelength zone",
zones: []string{"us-east-1-wl1-bos-wlz-1"},
expRegion: "us-east-1",
},
{
name: "Local zone",
zones: []string{"us-west-2-lax-1a"},
expRegion: "us-west-2",
},
{
name: "Invalid: empty zones",
zones: []string{},
expErr: true,
},
{
name: "Invalid: multiple regions",
zones: []string{"us-west-2a", "us-east-1a"},
expErr: true,
},
{
name: "Invalid: region name only",
zones: []string{"us-west-2"},
expErr: true,
},
{
name: "Invalid: invalid suffix",
zones: []string{"us-west-2ab"},
expErr: true,
},
{
name: "Invalid: not enough fields",
zones: []string{"us-west"},
expErr: true,
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
t.Logf("Testing %v", tc.name)
got, err := getAwsRegionFromZones(tc.zones)
if err != nil && !tc.expErr {
t.Fatalf("Did not expect error but got: %v", err)
}
if err == nil && tc.expErr {
t.Fatalf("Expected error, but did not get one.")
}
if err == nil && !reflect.DeepEqual(got, tc.expRegion) {
t.Errorf("Got PV name: %v, expected :%v", got, tc.expRegion)
}
})
}
}