diff --git a/Assets/Mirror/Tests/MultiplexTest.cs b/Assets/Mirror/Tests/MultiplexTest.cs
index b2aeba32e..6aaea1711 100644
--- a/Assets/Mirror/Tests/MultiplexTest.cs
+++ b/Assets/Mirror/Tests/MultiplexTest.cs
@@ -1,4 +1,5 @@
-using System.Collections;
+using System;
+using System.Collections;
 using System.Collections.Generic;
 using NSubstitute;
 using NUnit.Framework;
@@ -57,5 +58,40 @@ public void TestConnect()
             transport1.DidNotReceive().ClientConnect(Arg.Any<string>());
             transport2.Received().ClientConnect("some.server.com");
         }
+
+        // A Test behaves as an ordinary method
+        [Test]
+        public void TestConnectFirstUri()
+        {
+            Uri uri = new Uri("tcp://some.server.com");
+
+            transport1.Available().Returns(true);
+            transport2.Available().Returns(true);
+
+            transport.ClientConnect(uri);
+            transport1.Received().ClientConnect(uri);
+            transport2.DidNotReceive().ClientConnect(uri);
+        }
+
+
+        // A Test behaves as an ordinary method
+        [Test]
+        public void TestConnectSecondUri()
+        {
+            Uri uri = new Uri("ws://some.server.com");
+
+            transport1.Available().Returns(true);
+
+            // first transport does not support websocket
+            transport1
+                .When(x => x.ClientConnect(uri))
+                .Do(x => { throw new ArgumentException("Scheme not supported"); });
+
+            transport2.Available().Returns(true);
+
+            transport.ClientConnect(uri);
+            transport2.Received().ClientConnect(uri);
+        }
+
     }
 }