/
subscribe_test.go
132 lines (104 loc) · 3.7 KB
/
subscribe_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 TestSubscribeMessageFields(t *testing.T) {
msg := NewSubscribeMessage()
msg.SetPacketId(100)
assert.Equal(t, true, 100, msg.PacketId(), "Error setting packet ID.")
msg.AddTopic([]byte("/a/b/#/c"), 1)
assert.Equal(t, true, 1, len(msg.Topics()), "Error adding topic.")
assert.False(t, true, msg.TopicExists([]byte("a/b")), "Topic should not exist.")
msg.RemoveTopic([]byte("/a/b/#/c"))
assert.False(t, true, msg.TopicExists([]byte("/a/b/#/c")), "Topic should not exist.")
}
func TestSubscribeMessageDecode(t *testing.T) {
msgBytes := []byte{
byte(SUBSCRIBE<<4) | 2,
36,
0, // packet ID MSB (0)
7, // packet ID LSB (7)
0, // topic name MSB (0)
7, // topic name LSB (7)
's', 'u', 'r', 'g', 'e', 'm', 'q',
0, // QoS
0, // topic name MSB (0)
8, // topic name LSB (8)
'/', 'a', '/', 'b', '/', '#', '/', 'c',
1, // QoS
0, // topic name MSB (0)
10, // topic name LSB (10)
'/', 'a', '/', 'b', '/', '#', '/', 'c', 'd', 'd',
2, // QoS
}
src := bytes.NewBuffer(msgBytes)
msg := NewSubscribeMessage()
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, SUBSCRIBE, msg.Type(), "Error decoding message.")
assert.Equal(t, true, 3, len(msg.Topics()), "Error decoding topics.")
assert.True(t, true, msg.TopicExists([]byte("surgemq")), "Topic 'surgemq' should exist.")
assert.Equal(t, true, 0, msg.TopicQos([]byte("surgemq")), "Incorrect topic qos.")
assert.True(t, true, msg.TopicExists([]byte("/a/b/#/c")), "Topic '/a/b/#/c' should exist.")
assert.Equal(t, true, 1, msg.TopicQos([]byte("/a/b/#/c")), "Incorrect topic qos.")
assert.True(t, true, msg.TopicExists([]byte("/a/b/#/cdd")), "Topic '/a/b/#/c' should exist.")
assert.Equal(t, true, 2, msg.TopicQos([]byte("/a/b/#/cdd")), "Incorrect topic qos.")
}
// test empty topic list
func TestSubscribeMessageDecode2(t *testing.T) {
msgBytes := []byte{
byte(SUBSCRIBE<<4) | 2,
2,
0, // packet ID MSB (0)
7, // packet ID LSB (7)
}
src := bytes.NewBuffer(msgBytes)
msg := NewSubscribeMessage()
_, err := msg.Decode(src)
assert.Error(t, true, err)
}
func TestSubscribeMessageEncode(t *testing.T) {
msgBytes := []byte{
byte(SUBSCRIBE<<4) | 2,
36,
0, // packet ID MSB (0)
7, // packet ID LSB (7)
0, // topic name MSB (0)
7, // topic name LSB (7)
's', 'u', 'r', 'g', 'e', 'm', 'q',
0, // QoS
0, // topic name MSB (0)
8, // topic name LSB (8)
'/', 'a', '/', 'b', '/', '#', '/', 'c',
1, // QoS
0, // topic name MSB (0)
10, // topic name LSB (10)
'/', 'a', '/', 'b', '/', '#', '/', 'c', 'd', 'd',
2, // QoS
}
msg := NewSubscribeMessage()
msg.SetPacketId(7)
msg.AddTopic([]byte("surgemq"), 0)
msg.AddTopic([]byte("/a/b/#/c"), 1)
msg.AddTopic([]byte("/a/b/#/cdd"), 2)
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.")
}