Refactor package object model.

Tests/MQTTnet.Core.Tests/Mockups/TestEnvironment.cs

@@ -6,7 +6,9 @@ using MQTTnet.Server;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
+using MQTTnet.LowLevelClient;
 
 namespace MQTTnet.Tests.Mockups
 {
@@ -100,6 +102,25 @@ namespace MQTTnet.Tests.Mockups
             return ConnectClientAsync(new MqttClientOptionsBuilder());
         }
 
+        public Task<ILowLevelMqttClient> ConnectLowLevelClientAsync()
+        {
+            return ConnectLowLevelClientAsync(o => {});
+        }
+
+        public async Task<ILowLevelMqttClient> ConnectLowLevelClientAsync(Action<MqttClientOptionsBuilder> optionsBuilder)
+        {
+            if (optionsBuilder == null) throw new ArgumentNullException(nameof(optionsBuilder));
+
+            var options = new MqttClientOptionsBuilder();
+            options = options.WithTcpServer("127.0.0.1", ServerPort);
+            optionsBuilder.Invoke(options);
+
+            var client = new MqttFactory().CreateLowLevelMqttClient();
+            await client.ConnectAsync(options.Build(), CancellationToken.None).ConfigureAwait(false);
+
+            return client;
+        }
+
         public async Task<IMqttClient> ConnectClientAsync(MqttClientOptionsBuilder options)
         {
             if (options == null) throw new ArgumentNullException(nameof(options));
@@ -111,7 +132,7 @@ namespace MQTTnet.Tests.Mockups
 
             return client;
         }
-
+        
         public async Task<IMqttClient> ConnectClientAsync(IMqttClientOptions options)
         {
             if (options == null) throw new ArgumentNullException(nameof(options));

Tests/MQTTnet.Core.Tests/Mockups/TestMqttCommunicationAdapter.cs

@@ -11,7 +11,7 @@ namespace MQTTnet.Tests.Mockups
 {
     public class TestMqttCommunicationAdapter : IMqttChannelAdapter
     {
-        private readonly BlockingCollection<MqttBasePacket> _incomingPackets = new BlockingCollection<MqttBasePacket>();
+        readonly BlockingCollection<MqttBasePacket> _incomingPackets = new BlockingCollection<MqttBasePacket>();
 
         public TestMqttCommunicationAdapter Partner { get; set; }
 
@@ -26,8 +26,7 @@ namespace MQTTnet.Tests.Mockups
         public long BytesSent { get; }
         public long BytesReceived { get; }
 
-        public Action ReadingPacketStartedCallback { get; set; }
-        public Action ReadingPacketCompletedCallback { get; set; }
+        public bool IsReadingPacket { get; }
 
         public void Dispose()
         {