Add support for V3.1.0; Performance improvements

Tests/MQTTnet.Core.Tests/MQTTnet.Core.Tests.csproj

@@ -86,7 +86,7 @@
   <ItemGroup>
     <Compile Include="ByteReaderTests.cs" />
     <Compile Include="ByteWriterTests.cs" />
-    <Compile Include="DefaultMqttV311PacketSerializerTests.cs" />
+    <Compile Include="MqttPacketSerializerTests.cs" />
     <Compile Include="MqttServerTests.cs" />
     <Compile Include="MqttSubscriptionsManagerTests.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />

Tests/MQTTnet.Core.Tests/MqttPacketSerializerTests.cs

@@ -12,8 +12,23 @@ using MQTTnet.Core.Serializer;
 namespace MQTTnet.Core.Tests
 {
     [TestClass]
-    public class DefaultMqttV311PacketSerializerTests
+    public class MqttPacketSerializerTests
     {
+        [TestMethod]
+        public void SerializeV310_MqttConnectPacket()
+        {
+            var p = new MqttConnectPacket
+            {
+                ClientId = "XYZ",
+                Password = "PASS",
+                Username = "USER",
+                KeepAlivePeriod = 123,
+                CleanSession = true
+            };
+
+            SerializeAndCompare(p, "EB0ABE1RSXNkcAPCAHsAA1hZWgAEVVNFUgAEUEFTUw==", MqttProtocolVersion.V310);
+        }
+
         [TestMethod]
         public void SerializeV311_MqttConnectPacket()
         {
@@ -96,6 +111,17 @@ namespace MQTTnet.Core.Tests
             SerializeAndCompare(p, "IAIBBQ==");
         }
 
+        [TestMethod]
+        public void SerializeV310_MqttConnAckPacket()
+        {
+            var p = new MqttConnAckPacket
+            {
+                ConnectReturnCode = MqttConnectReturnCode.ConnectionAccepted
+            };
+
+            SerializeAndCompare(p, "IAIAAA==", MqttProtocolVersion.V310);
+        }
+
         [TestMethod]
         public void DeserializeV311_MqttConnAckPacket()
         {
@@ -403,9 +429,9 @@ namespace MQTTnet.Core.Tests
             }
         }
 
-        private void SerializeAndCompare(MqttBasePacket packet, string expectedBase64Value)
+        private void SerializeAndCompare(MqttBasePacket packet, string expectedBase64Value, MqttProtocolVersion protocolVersion = MqttProtocolVersion.V311)
         {
-            var serializer = new MqttV311PacketSerializer();
+            var serializer = new MqttPacketSerializer { ProtocolVersion = protocolVersion };
             var channel = new TestChannel();
             serializer.SerializeAsync(packet, channel).Wait();
             var buffer = channel.ToArray();
@@ -415,7 +441,7 @@ namespace MQTTnet.Core.Tests
 
         private void DeserializeAndCompare(MqttBasePacket packet, string expectedBase64Value)
         {
-            var serializer = new MqttV311PacketSerializer();
+            var serializer = new MqttPacketSerializer();
 
             var channel1 = new TestChannel();
             serializer.SerializeAsync(packet, channel1).Wait();

Tests/MQTTnet.Core.Tests/TestMqttCommunicationAdapter.cs

@@ -4,6 +4,7 @@ using System.Threading.Tasks;
 using MQTTnet.Core.Adapter;
 using MQTTnet.Core.Client;
 using MQTTnet.Core.Packets;
+using MQTTnet.Core.Serializer;
 
 namespace MQTTnet.Core.Tests
 {
@@ -13,6 +14,8 @@ namespace MQTTnet.Core.Tests
 
         public TestMqttCommunicationAdapter Partner { get; set; }
 
+        public IMqttPacketSerializer PacketSerializer { get; } = new MqttPacketSerializer();
+
         public async Task ConnectAsync(MqttClientOptions options, TimeSpan timeout)
         {
             await Task.FromResult(0);