public void SingleQos_AtLeastOnce()
{
var expected = new[]
{
(byte)0x90,
(byte)0x03,
(byte)0x00,
(byte)0x02,
(byte)0x01,
};
MqttMessage msg = new MqttSubscribeAckMessage()
.WithMessageIdentifier(2)
.AddQosGrant(MqttQos.AtLeastOnce);
Console.WriteLine(msg);
byte[] actual = MessageSerializationHelper.GetMessageBytes(msg);
Assert.Equal<int>(expected.Length, actual.Length);
Assert.Equal<byte>(expected[0], actual[0]); // header byte 1
Assert.Equal<byte>(expected[1], actual[1]); // remaining length
Assert.Equal<byte>(expected[2], actual[2]); // message id b1
Assert.Equal<byte>(expected[3], actual[3]); // message id b2
Assert.Equal<byte>(expected[4], actual[4]); // QOS
}
/// <summary>
/// Confirms a subscription has been made with the broker. Marks the sub as confirmed in the subs storage.
/// </summary>
/// <param name="subAck"></param>
private bool ConfirmSubscription(MqttMessage msg)
{
MqttSubscribeAckMessage subAck = (MqttSubscribeAckMessage)msg;
Subscription sub;
if (!pendingSubscriptions.TryGetValue(subAck.VariableHeader.MessageIdentifier, out sub))
{
throw new ArgumentException(
String.Format("There is no pending subscription against message identifier {0}", subAck.VariableHeader.MessageIdentifier));
}
// move it to the subscriptions pool, and out of the pending pool.
subscriptions.Add(sub.Topic, sub);
pendingSubscriptions.Remove(subAck.VariableHeader.MessageIdentifier);
return(true);
}
public void ClearGrantsClearsGrants()
{
MqttSubscribeAckMessage msg = new MqttSubscribeAckMessage()
.WithMessageIdentifier(2)
.AddQosGrant(MqttQos.AtMostOnce)
.AddQosGrant(MqttQos.AtLeastOnce)
.AddQosGrant(MqttQos.ExactlyOnce);
Assert.Equal<int>(3, msg.Payload.QosGrants.Count);
msg.Payload.ClearGrants();
Assert.Equal<int>(0, msg.Payload.QosGrants.Count);
}