/
connack_test.go
139 lines (109 loc) · 3.38 KB
/
connack_test.go
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
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
// Copyright (c) 2014 Dataence, LLC. All rights reserved.
//
// 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 mqtt
import (
"bytes"
"testing"
"github.com/dataence/assert"
)
func TestConnackMessageFields(t *testing.T) {
msg := NewConnackMessage()
msg.SetSessionPresent(true)
assert.True(t, true, msg.SessionPresent(), "Error setting session present flag.")
msg.SetSessionPresent(false)
assert.False(t, true, msg.SessionPresent(), "Error setting session present flag.")
msg.SetReturnCode(ConnectionAccepted)
assert.Equal(t, true, ConnectionAccepted, msg.ReturnCode(), "Error setting return code.")
}
func TestConnackMessageDecode(t *testing.T) {
msgBytes := []byte{
byte(CONNACK << 4),
2,
0, // session not present
0, // connection accepted
}
src := bytes.NewBuffer(msgBytes)
msg := NewConnackMessage()
n, err := msg.Decode(src)
assert.NoError(t, true, err, "Error decoding message.")
assert.Equal(t, true, len(msgBytes), n, "Error decoding message.")
assert.False(t, true, msg.SessionPresent(), "Error decoding session present flag.")
assert.Equal(t, true, ConnectionAccepted, msg.ReturnCode(), "Error decoding return code.")
}
// testing wrong message length
func TestConnackMessageDecode2(t *testing.T) {
msgBytes := []byte{
byte(CONNACK << 4),
3,
0, // session not present
0, // connection accepted
}
src := bytes.NewBuffer(msgBytes)
msg := NewConnackMessage()
_, err := msg.Decode(src)
assert.Error(t, true, err, "Error decoding message.")
}
// testing wrong message size
func TestConnackMessageDecode3(t *testing.T) {
msgBytes := []byte{
byte(CONNACK << 4),
2,
0, // session not present
}
src := bytes.NewBuffer(msgBytes)
msg := NewConnackMessage()
_, err := msg.Decode(src)
assert.Error(t, true, err, "Error decoding message.")
}
// testing wrong reserve bits
func TestConnackMessageDecode4(t *testing.T) {
msgBytes := []byte{
byte(CONNACK << 4),
2,
64, // <- wrong size
0, // connection accepted
}
src := bytes.NewBuffer(msgBytes)
msg := NewConnackMessage()
_, err := msg.Decode(src)
assert.Error(t, true, err, "Error decoding message.")
}
// testing invalid return code
func TestConnackMessageDecode5(t *testing.T) {
msgBytes := []byte{
byte(CONNACK << 4),
2,
0,
6, // <- wrong code
}
src := bytes.NewBuffer(msgBytes)
msg := NewConnackMessage()
_, err := msg.Decode(src)
assert.Error(t, true, err, "Error decoding message.")
}
func TestConnackMessageEncode(t *testing.T) {
msgBytes := []byte{
byte(CONNACK << 4),
2,
1, // session present
0, // connection accepted
}
msg := NewConnackMessage()
msg.SetReturnCode(ConnectionAccepted)
msg.SetSessionPresent(true)
dst, n, err := msg.Encode()
assert.NoError(t, true, err, "Error decoding message.")
assert.Equal(t, true, len(msgBytes), n, "Error encoding message.")
assert.Equal(t, true, msgBytes, dst.(*bytes.Buffer).Bytes(), "Error encoding connack message.")
}