Fix some minor TODOs.

Tests/MQTTnet.Benchmarks/SerializerBenchmark.cs

@@ -84,12 +84,12 @@ namespace MQTTnet.Benchmarks
 
             public Task ConnectAsync(CancellationToken cancellationToken)
             {
-                throw new NotImplementedException();
+                throw new NotSupportedException();
             }
 
             public Task DisconnectAsync(CancellationToken cancellationToken)
             {
-                throw new NotImplementedException();
+                throw new NotSupportedException();
             }
 
             public Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
@@ -102,7 +102,7 @@ namespace MQTTnet.Benchmarks
 
             public Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
             {
-                throw new NotImplementedException();
+                throw new NotSupportedException();
             }
 
             public void Dispose()

Tests/MQTTnet.TestApp.UniversalWindows/App.xaml.cs

@@ -15,28 +15,14 @@ namespace MQTTnet.TestApp.UniversalWindows
             Suspending += OnSuspending;
         }
 
-        /// <summary>
-        /// Invoked when the application is launched normally by the end user.  Other entry points
-        /// will be used such as when the application is launched to open a specific file.
-        /// </summary>
-        /// <param name="e">Details about the launch request and process.</param>
         protected override void OnLaunched(LaunchActivatedEventArgs e)
         {
-            // Do not repeat app initialization when the Window already has content,
-            // just ensure that the window is active
             if (!(Window.Current.Content is Frame rootFrame))
             {
-                // Create a Frame to act as the navigation context and navigate to the first page
                 rootFrame = new Frame();
 
                 rootFrame.NavigationFailed += OnNavigationFailed;
 
-                if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
-                {
-                    //TODO: Load state from previously suspended application
-                }
-
-                // Place the frame in the current Window
                 Window.Current.Content = rootFrame;
             }
 
@@ -44,37 +30,21 @@ namespace MQTTnet.TestApp.UniversalWindows
             {
                 if (rootFrame.Content == null)
                 {
-                    // When the navigation stack isn't restored navigate to the first page,
-                    // configuring the new page by passing required information as a navigation
-                    // parameter
                     rootFrame.Navigate(typeof(MainPage), e.Arguments);
                 }
-                // Ensure the current window is active
+                
                 Window.Current.Activate();
             }
         }
-
-        /// <summary>
-        /// Invoked when Navigation to a certain page fails
-        /// </summary>
-        /// <param name="sender">The Frame which failed navigation</param>
-        /// <param name="e">Details about the navigation failure</param>
+        
         void OnNavigationFailed(object sender, NavigationFailedEventArgs e)
         {
             throw new Exception("Failed to load Page " + e.SourcePageType.FullName);
         }
 
-        /// <summary>
-        /// Invoked when application execution is being suspended.  Application state is saved
-        /// without knowing whether the application will be terminated or resumed with the contents
-        /// of memory still intact.
-        /// </summary>
-        /// <param name="sender">The source of the suspend request.</param>
-        /// <param name="e">Details about the suspend request.</param>
         private void OnSuspending(object sender, SuspendingEventArgs e)
         {
             var deferral = e.SuspendingOperation.GetDeferral();
-            //TODO: Save application state and stop any background activity
             deferral.Complete();
         }
     }