Add nuget support

Tests/MQTTnet.Core.Tests/MqttServerTests.cs

@@ -1,8 +1,5 @@
-using System;
-using System.Collections.Concurrent;
-using System.Threading.Tasks;
+using System.Threading.Tasks;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
-using MQTTnet.Core.Adapter;
 using MQTTnet.Core.Client;
 using MQTTnet.Core.Packets;
 using MQTTnet.Core.Protocol;
@@ -71,8 +68,8 @@ namespace MQTTnet.Core.Tests
 
         private MqttClient ConnectTestClient(string clientId, MqttApplicationMessage willMessage, MqttServer server)
         {
-            var adapterA = new TestMqttClientAdapter();
-            var adapterB = new TestMqttClientAdapter();
+            var adapterA = new TestMqttCommunicationAdapter();
+            var adapterB = new TestMqttCommunicationAdapter();
             adapterA.Partner = adapterB;
             adapterB.Partner = adapterA;
 
@@ -111,51 +108,4 @@ namespace MQTTnet.Core.Tests
             Assert.AreEqual(expectedReceivedMessagesCount, receivedMessagesCount);
         }
     }
-
-    public class TestMqttClientAdapter : IMqttCommunicationAdapter
-    {
-        private readonly BlockingCollection<MqttBasePacket> _incomingPackets = new BlockingCollection<MqttBasePacket>();
-
-        public TestMqttClientAdapter Partner { get; set; }
-
-        public async Task ConnectAsync(MqttClientOptions options, TimeSpan timeout)
-        {
-            await Task.FromResult(0);
-        }
-
-        public async Task DisconnectAsync()
-        {
-            await Task.FromResult(0);
-        }
-
-        public async Task SendPacketAsync(MqttBasePacket packet, TimeSpan timeout)
-        {
-            ThrowIfPartnerIsNull();
-
-            Partner.SendPacketInternal(packet);
-            await Task.FromResult(0);
-        }
-
-        public async Task<MqttBasePacket> ReceivePacketAsync(TimeSpan timeout)
-        {
-            ThrowIfPartnerIsNull();
-
-            return await Task.Run(() => _incomingPackets.Take());
-        }
-
-        private void SendPacketInternal(MqttBasePacket packet)
-        {
-            if (packet == null) throw new ArgumentNullException(nameof(packet));
-
-            _incomingPackets.Add(packet);
-        }
-
-        private void ThrowIfPartnerIsNull()
-        {
-            if (Partner == null)
-            {
-                throw new InvalidOperationException("Partner is not set.");
-            }
-        }
-    }
 }