1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
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
|
/*
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 etcd3
import (
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.etcd.io/etcd/api/v3/mvccpb"
clientv3 "go.etcd.io/etcd/client/v3"
)
func TestParseEvent(t *testing.T) {
for _, tc := range []struct {
name string
etcdEvent *clientv3.Event
expectedEvent *event
expectedErr string
}{
{
name: "successful create",
etcdEvent: &clientv3.Event{
Type: clientv3.EventTypePut,
PrevKv: nil,
Kv: &mvccpb.KeyValue{
// key is the key in bytes. An empty key is not allowed.
Key: []byte("key"),
ModRevision: 1,
CreateRevision: 1,
Value: []byte("value"),
},
},
expectedEvent: &event{
key: "key",
value: []byte("value"),
prevValue: nil,
rev: 1,
isDeleted: false,
isCreated: true,
},
expectedErr: "",
},
{
name: "unsuccessful delete",
etcdEvent: &clientv3.Event{
Type: mvccpb.DELETE,
PrevKv: nil,
Kv: &mvccpb.KeyValue{
Key: []byte("key"),
CreateRevision: 1,
ModRevision: 2,
Value: nil,
},
},
expectedErr: "etcd event received with PrevKv=nil",
},
{
name: "successful delete",
etcdEvent: &clientv3.Event{
Type: mvccpb.DELETE,
PrevKv: &mvccpb.KeyValue{
Key: []byte("key"),
CreateRevision: 1,
ModRevision: 1,
Value: []byte("value"),
},
Kv: &mvccpb.KeyValue{
Key: []byte("key"),
CreateRevision: 1,
ModRevision: 2,
Value: nil,
},
},
expectedEvent: &event{
key: "key",
value: nil,
prevValue: []byte("value"),
rev: 2,
isDeleted: true,
isCreated: false,
},
expectedErr: "",
},
} {
t.Run(tc.name, func(t *testing.T) {
actualEvent, err := parseEvent(tc.etcdEvent)
if tc.expectedErr != "" {
require.Error(t, err)
assert.ErrorContains(t, err, tc.expectedErr)
} else {
require.NoError(t, err)
assert.Equal(t, tc.expectedEvent, actualEvent)
}
})
}
}
|
