From 2ecbd83d06355ea4bcea1ca437f533e8d0299f32 Mon Sep 17 00:00:00 2001
From: Christian Kratky <christian.kratky@googlemail.com>
Date: Mon, 6 May 2019 20:22:20 +0200
Subject: [PATCH] Add UnitTests.

---
 Tests/MQTTnet.Core.Tests/Server_Tests.cs | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/Tests/MQTTnet.Core.Tests/Server_Tests.cs b/Tests/MQTTnet.Core.Tests/Server_Tests.cs
index 4095cc17..7b78e340 100644
--- a/Tests/MQTTnet.Core.Tests/Server_Tests.cs
+++ b/Tests/MQTTnet.Core.Tests/Server_Tests.cs
@@ -54,6 +54,20 @@ namespace MQTTnet.Tests
                 1);
         }
 
+        [TestMethod]
+        public async Task Use_Clean_Session()
+        {
+            using (var testEnvironment = new TestEnvironment())
+            {
+                await testEnvironment.StartServerAsync();
+
+                var client = testEnvironment.CreateClient();
+                var connectResult = await client.ConnectAsync(new MqttClientOptionsBuilder().WithTcpServer("localhost", testEnvironment.ServerPort).WithCleanSession().Build());
+
+                Assert.IsFalse(connectResult.IsSessionPresent);
+            }
+        }
+
         [TestMethod]
         public async Task Will_Message_Do_Not_Send()
         {
@@ -61,7 +75,7 @@ namespace MQTTnet.Tests
             {
                 var receivedMessagesCount = 0;
 
-                await testEnvironment.StartServerAsync(new MqttServerOptionsBuilder());
+                await testEnvironment.StartServerAsync();
 
                 var willMessage = new MqttApplicationMessageBuilder().WithTopic("My/last/will").WithAtMostOnceQoS().Build();