Newer
Older
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 kubernetes
import (
"encoding/json"
"os"
"strings"
"sync"
"testing"
"time"
"github.com/stretchr/testify/suite"
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
v1 "k8s.io/api/core/v1"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/kubernetes/fake"
)
// tests dataset
var tests = []struct {
input struct {
k string
v string
}
}{
{input: struct {
k string
v string
}{k: "name", v: "scott.wang"}},
{input: struct {
k string
v string
}{k: "namePrefix", v: "prefix.scott.wang"}},
{input: struct {
k string
v string
}{k: "namePrefix1", v: "prefix1.scott.wang"}},
{input: struct {
k string
v string
}{k: "age", v: "27"}},
}
// test dataset prefix
const prefix = "name"
var clientPodJsonData = `{
"apiVersion": "v1",
"kind": "Pod",
"metadata": {
"annotations": {
"dubbo.io/annotation": "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"
},
"creationTimestamp": "2020-03-13T03:38:57Z",
"labels": {
"dubbo.io/label": "dubbo.io-value"
},
"name": "client",
"namespace": "default",
"resourceVersion": "2449700",
"selfLink": "/api/v1/namespaces/default/pods/client",
"uid": "3ec394f5-dcc6-49c3-8061-57b4b2b41344"
},
"spec": {
"containers": [
{
"env": [
{
"name": "NAMESPACE",
"valueFrom": {
"fieldRef": {
"apiVersion": "v1",
"fieldPath": "metadata.namespace"
}
}
}
],
"image": "registry.cn-hangzhou.aliyuncs.com/scottwang/dubbogo-client",
"imagePullPolicy": "Always",
"name": "client",
"resources": {},
"terminationMessagePath": "/dev/termination-log",
"terminationMessagePolicy": "File",
"volumeMounts": [
{
"mountPath": "/var/run/secrets/kubernetes.io/serviceaccount",
"name": "dubbo-sa-token-l2lzh",
"readOnly": true
}
]
}
],
"dnsPolicy": "ClusterFirst",
"enableServiceLinks": true,
"nodeName": "minikube",
"priority": 0,
"restartPolicy": "Never",
"schedulerName": "default-scheduler",
"securityContext": {},
"serviceAccount": "dubbo-sa",
"serviceAccountName": "dubbo-sa",
"terminationGracePeriodSeconds": 30,
"tolerations": [
{
"effect": "NoExecute",
"key": "node.kubernetes.io/not-ready",
"operator": "Exists",
"tolerationSeconds": 300
},
{
"effect": "NoExecute",
"key": "node.kubernetes.io/unreachable",
"operator": "Exists",
"tolerationSeconds": 300
}
],
"volumes": [
{
"name": "dubbo-sa-token-l2lzh",
"secret": {
"defaultMode": 420,
"secretName": "dubbo-sa-token-l2lzh"
}
}
]
},
"status": {
"conditions": [
{
"lastProbeTime": null,
"lastTransitionTime": "2020-03-13T03:38:57Z",
"status": "True",
"type": "Initialized"
},
{
"lastProbeTime": null,
"lastTransitionTime": "2020-03-13T03:40:18Z",
"status": "True",
"type": "Ready"
},
{
"lastProbeTime": null,
"lastTransitionTime": "2020-03-13T03:40:18Z",
"status": "True",
"type": "ContainersReady"
},
{
"lastProbeTime": null,
"lastTransitionTime": "2020-03-13T03:38:57Z",
"status": "True",
"type": "PodScheduled"
}
],
"containerStatuses": [
{
"containerID": "docker://2870d6abc19ca7fe22ca635ebcfac5d48c6d5550a659bafd74fb48104f6dfe3c",
"image": "registry.cn-hangzhou.aliyuncs.com/scottwang/dubbogo-client:latest",
"imageID": "docker-pullable://registry.cn-hangzhou.aliyuncs.com/scottwang/dubbogo-client@sha256:1f075131f708a0d400339e81549d7c4d4ed917ab0b6bd38ef458dd06ad25a559",
"lastState": {},
"name": "client",
"ready": true,
"restartCount": 0,
"state": {
"running": {
"startedAt": "2020-03-13T03:40:17Z"
}
}
}
],
"hostIP": "10.0.2.15",
"phase": "Running",
"podIP": "172.17.0.8",
"qosClass": "BestEffort",
"startTime": "2020-03-13T03:38:57Z"
}
}
`
type KubernetesClientTestSuite struct {
suite.Suite
func (s *KubernetesClientTestSuite) initClient() *Client {
t := s.T()
client, err := newMockClient(s.currentPod.GetNamespace(), func() (kubernetes.Interface, error) {
out := fake.NewSimpleClientset()
// mock current pod
if _, err := out.CoreV1().Pods(s.currentPod.GetNamespace()).Create(&s.currentPod); err != nil {
t.Fatal(err)
}
return out, nil
})
if err != nil {
t.Fatal(err)
}
return client
}
func (s *KubernetesClientTestSuite) SetupSuite() {
t := s.T()
// 1. install test data
if err := json.Unmarshal([]byte(clientPodJsonData), &s.currentPod); err != nil {
t.Fatal(err)
}
// 2. set downward-api inject env
if err := os.Setenv(podNameKey, s.currentPod.GetName()); err != nil {
t.Fatal(err)
}
if err := os.Setenv(nameSpaceKey, s.currentPod.GetNamespace()); err != nil {
t.Fatal(err)
}
}
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
func (s *KubernetesClientTestSuite) TestReadCurrentPodName() {
t := s.T()
n, err := getCurrentPodName()
if err != nil {
t.Fatal(err)
}
if n != s.currentPod.GetName() {
t.Fatalf("expect %s but got %s", s.currentPod.GetName(), n)
}
}
func (s *KubernetesClientTestSuite) TestReadCurrentNameSpace() {
t := s.T()
ns, err := getCurrentNameSpace()
if err != nil {
t.Fatal(err)
}
if ns != s.currentPod.GetNamespace() {
t.Fatalf("expect %s but got %s", s.currentPod.GetNamespace(), ns)
}
}
func (s *KubernetesClientTestSuite) TestClientValid() {
t := s.T()
client := s.initClient()
defer client.Close()
if client.Valid() != true {
client.Close()
if client.Valid() != false {
t.Fatal("client is valid")
}
}
func (s *KubernetesClientTestSuite) TestClientDone() {
t := s.T()
t.Fatal("client should be invalid then")
}
}
func (s *KubernetesClientTestSuite) TestClientCreateKV() {
t := s.T()
client := s.initClient()
defer client.Close()
for _, tc := range tests {
k := tc.input.k
v := tc.input.v
t.Fatal(err)
}
}
}
func (s *KubernetesClientTestSuite) TestClientGetChildrenKVList() {
t := s.T()
client := s.initClient()
defer client.Close()
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
defer wg.Done()
wc, err := client.WatchWithPrefix(prefix)
if err != nil {
t.Fatal(err)
}
i := 0
for e := range wc {
i++
t.Logf("got event %v k %s v %s", e.EventType, e.Key, e.Value)
if i == 3 {
// already sync all event
return
}
}
}()
expect := make(map[string]string)
got := make(map[string]string)
for _, tc := range tests {
k := tc.input.k
v := tc.input.v
if strings.Contains(k, prefix) {
expect[k] = v
}
// must wait client sync all create event
wg.Wait()
// start get all children
kList, vList, err := client.GetChildren(prefix)
if err != nil {
t.Fatal(err)
}
for i := 0; i < len(kList); i++ {
got[kList[i]] = vList[i]
}
for expectK, expectV := range expect {
if got[expectK] != expectV {
t.Fatalf("expect {%s: %s} but got {%s: %v}", expectK, expectV, expectK, got[expectK])
}
}
}
func (s *KubernetesClientTestSuite) TestClientWatchPrefix() {
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
defer wg.Done()
if err != nil {
t.Fatal(err)
}
for e := range wc {
t.Logf("got event %v k %s v %s", e.EventType, e.Key, e.Value)
}
}()
for _, tc := range tests {
k := tc.input.k
v := tc.input.v
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
func (s *KubernetesClientTestSuite) TestNewClient() {
t := s.T()
_, err := newClient(s.currentPod.GetNamespace())
if err == nil {
t.Fatal("the out of cluster test should fail")
}
}
func (s *KubernetesClientTestSuite) TestClientWatch() {
t := s.T()
client := s.initClient()
wg := sync.WaitGroup{}
wg.Add(1)
go func() {
defer wg.Done()
wc, err := client.Watch(prefix)
if err != nil {
t.Fatal(err)
}
for e := range wc {
t.Logf("got event %v k %s v %s", e.EventType, e.Key, e.Value)
}
}()
for _, tc := range tests {
k := tc.input.k
v := tc.input.v
if err := client.Create(k, v); err != nil {
t.Fatal(err)
}
}
client.Close()
wg.Wait()
}
func TestKubernetesClient(t *testing.T) {
suite.Run(t, new(KubernetesClientTestSuite))
}