/
publish_test.go
200 lines (154 loc) · 5.44 KB
/
publish_test.go
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// 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 TestPublishMessageFixedHeaderFields(t *testing.T) {
msg := NewPublishMessage()
msg.flags = 11
assert.True(t, true, msg.Dup(), "Incorrect DUP flag.")
assert.True(t, true, msg.Retain(), "Incorrect RETAIN flag.")
assert.Equal(t, true, 1, msg.QoS(), "Incorrect QoS.")
msg.SetDup(false)
assert.False(t, true, msg.Dup(), "Incorrect DUP flag.")
msg.SetRetain(false)
assert.False(t, true, msg.Retain(), "Incorrect RETAIN flag.")
err := msg.SetQoS(2)
assert.NoError(t, true, err, "Error setting QoS.")
assert.Equal(t, true, 2, msg.QoS(), "Incorrect QoS.")
err = msg.SetQoS(3)
assert.Error(t, true, err)
err = msg.SetQoS(0)
assert.NoError(t, true, err, "Error setting QoS.")
assert.Equal(t, true, 0, msg.QoS(), "Incorrect QoS.")
msg.SetDup(true)
assert.True(t, true, msg.Dup(), "Incorrect DUP flag.")
msg.SetRetain(true)
assert.True(t, true, msg.Retain(), "Incorrect RETAIN flag.")
}
func TestPublishMessageFields(t *testing.T) {
msg := NewPublishMessage()
msg.SetTopic([]byte("coolstuff"))
assert.Equal(t, true, "coolstuff", string(msg.Topic()), "Error setting message topic.")
err := msg.SetTopic([]byte("coolstuff/#"))
assert.Error(t, true, err)
msg.SetPacketId(100)
assert.Equal(t, true, 100, msg.PacketId(), "Error setting acket ID.")
msg.SetPayload([]byte("this is a payload to be sent"))
assert.Equal(t, true, []byte("this is a payload to be sent"), msg.Payload(), "Error setting payload.")
}
func TestPublishMessageDecode1(t *testing.T) {
msgBytes := []byte{
byte(PUBLISH<<4) | 2,
23,
0, // topic name MSB (0)
7, // topic name LSB (7)
's', 'u', 'r', 'g', 'e', 'm', 'q',
0, // packet ID MSB (0)
7, // packet ID LSB (7)
's', 'e', 'n', 'd', ' ', 'm', 'e', ' ', 'h', 'o', 'm', 'e',
}
src := bytes.NewBuffer(msgBytes)
msg := NewPublishMessage()
n, err := msg.Decode(src)
assert.NoError(t, true, err, "Error decoding message.")
assert.Equal(t, true, len(msgBytes), n, "Error decoding message.")
assert.Equal(t, true, 7, msg.PacketId(), "Error decoding message.")
assert.Equal(t, true, "surgemq", string(msg.Topic()), "Error deocding topic name.")
assert.Equal(t, true, []byte{'s', 'e', 'n', 'd', ' ', 'm', 'e', ' ', 'h', 'o', 'm', 'e'}, msg.Payload(), "Error deocding payload.")
}
// test insufficient bytes
func TestPublishMessageDecode2(t *testing.T) {
msgBytes := []byte{
byte(PUBLISH<<4) | 2,
26,
0, // topic name MSB (0)
7, // topic name LSB (7)
's', 'u', 'r', 'g', 'e', 'm', 'q',
0, // packet ID MSB (0)
7, // packet ID LSB (7)
's', 'e', 'n', 'd', ' ', 'm', 'e', ' ', 'h', 'o', 'm', 'e',
}
src := bytes.NewBuffer(msgBytes)
msg := NewPublishMessage()
_, err := msg.Decode(src)
assert.Error(t, true, err)
}
// test qos = 0 and no client id
func TestPublishMessageDecode3(t *testing.T) {
msgBytes := []byte{
byte(PUBLISH << 4),
21,
0, // topic name MSB (0)
7, // topic name LSB (7)
's', 'u', 'r', 'g', 'e', 'm', 'q',
's', 'e', 'n', 'd', ' ', 'm', 'e', ' ', 'h', 'o', 'm', 'e',
}
src := bytes.NewBuffer(msgBytes)
msg := NewPublishMessage()
_, err := msg.Decode(src)
assert.NoError(t, true, err, "Error decoding message.")
}
func TestPublishMessageEncode(t *testing.T) {
msgBytes := []byte{
byte(PUBLISH<<4) | 2,
23,
0, // topic name MSB (0)
7, // topic name LSB (7)
's', 'u', 'r', 'g', 'e', 'm', 'q',
0, // packet ID MSB (0)
7, // packet ID LSB (7)
's', 'e', 'n', 'd', ' ', 'm', 'e', ' ', 'h', 'o', 'm', 'e',
}
msg := NewPublishMessage()
msg.SetTopic([]byte("surgemq"))
msg.SetQoS(1)
msg.SetPacketId(7)
msg.SetPayload([]byte{'s', 'e', 'n', 'd', ' ', 'm', 'e', ' ', 'h', 'o', 'm', 'e'})
dst, n, err := msg.Encode()
assert.NoError(t, true, err, "Error decoding message.")
assert.Equal(t, true, len(msgBytes), n, "Error decoding message.")
assert.Equal(t, true, msgBytes, dst.(*bytes.Buffer).Bytes(), "Error decoding message.")
}
// test empty topic name
func TestPublishMessageEncode2(t *testing.T) {
msg := NewPublishMessage()
msg.SetTopic([]byte(""))
msg.SetPacketId(7)
msg.SetPayload([]byte{'s', 'e', 'n', 'd', ' ', 'm', 'e', ' ', 'h', 'o', 'm', 'e'})
_, _, err := msg.Encode()
assert.Error(t, true, err)
}
// test encoding qos = 0 and no packet id
func TestPublishMessageEncode3(t *testing.T) {
msgBytes := []byte{
byte(PUBLISH << 4),
21,
0, // topic name MSB (0)
7, // topic name LSB (7)
's', 'u', 'r', 'g', 'e', 'm', 'q',
's', 'e', 'n', 'd', ' ', 'm', 'e', ' ', 'h', 'o', 'm', 'e',
}
msg := NewPublishMessage()
msg.SetTopic([]byte("surgemq"))
msg.SetQoS(0)
msg.SetPayload([]byte{'s', 'e', 'n', 'd', ' ', 'm', 'e', ' ', 'h', 'o', 'm', 'e'})
dst, n, err := msg.Encode()
assert.NoError(t, true, err, "Error decoding message.")
assert.Equal(t, true, len(msgBytes), n, "Error decoding message.")
assert.Equal(t, true, msgBytes, dst.(*bytes.Buffer).Bytes(), "Error decoding message.")
}