public void SingleTopic()
{
// Message Specs________________
// <A2><08><00><03><00><04>fred (Unsubscribe to topic fred)
var sampleMessage = new[]
{
(byte)0xA2,
(byte)0x08,
(byte)0x00,
(byte)0x03,
(byte)0x00,
(byte)0x04,
(byte)'f',
(byte)'r',
(byte)'e',
(byte)'d',
};
MqttMessage baseMessage = MqttMessage.CreateFrom(sampleMessage);
Console.WriteLine(baseMessage.ToString());
// check that the message was correctly identified as a connect message.
Assert.IsType <MqttUnsubscribeMessage>(baseMessage);
MqttUnsubscribeMessage message = (MqttUnsubscribeMessage)baseMessage;
Assert.Equal <int>(1, message.Payload.Subscriptions.Count);
Assert.True(message.Payload.Subscriptions.Contains("fred"));
}
public void MultiTopic()
{
// double topic unsubscribe
var expected = new[]
{
(byte)0xA2,
(byte)0x0E,
(byte)0x00,
(byte)0x03,
(byte)0x00,
(byte)0x04,
(byte)'f',
(byte)'r',
(byte)'e',
(byte)'d',
(byte)0x00,
(byte)0x04,
(byte)'m',
(byte)'a',
(byte)'r',
(byte)'k',
};
MqttMessage msg = new MqttUnsubscribeMessage()
.FromTopic("fred")
.FromTopic("mark")
.WithMessageIdentifier(3)
.ExpectAcknowledgement();
Console.WriteLine(msg);
byte[] actual = MessageSerializationHelper.GetMessageBytes(msg);
Assert.Equal <int>(expected.Length, actual.Length);
Assert.Equal <byte>(expected[0], actual[0]); // msg type of header
Assert.Equal <byte>(expected[1], actual[1]); // remaining length
Assert.Equal <byte>(expected[2], actual[2]); // Start of VH: MsgID Byte1
Assert.Equal <byte>(expected[3], actual[3]); // MsgID Byte 2
Assert.Equal <byte>(expected[4], actual[4]); // Topic Length B1
Assert.Equal <byte>(expected[5], actual[5]); // Topic Length B2
Assert.Equal <byte>(expected[6], actual[6]); // f
Assert.Equal <byte>(expected[7], actual[7]); // r
Assert.Equal <byte>(expected[8], actual[8]); // e
Assert.Equal <byte>(expected[9], actual[9]); // d
Assert.Equal <byte>(expected[10], actual[10]); // Topic Length B1
Assert.Equal <byte>(expected[11], actual[11]); // Topic Length B2
Assert.Equal <byte>(expected[12], actual[12]); // f
Assert.Equal <byte>(expected[13], actual[13]); // r
Assert.Equal <byte>(expected[14], actual[14]); // e
Assert.Equal <byte>(expected[15], actual[15]); // d
}
public void ClearSubscriptions()
{
MqttUnsubscribeMessage msg = new MqttUnsubscribeMessage()
.FromTopic("fred")
.FromTopic("mark")
.WithMessageIdentifier(3)
.ExpectAcknowledgement();
Console.WriteLine(msg);
Assert.Equal <int>(2, msg.Payload.Subscriptions.Count);
msg.Payload.ClearSubscriptions();
Assert.Equal <int>(0, msg.Payload.Subscriptions.Count);
}
