Unit Testing your Silverlight Applications Using the Silverlight Unit Testing Framework

Unit Testing your Silverlight Applications Using the Silverlight Unit Testing Framework By, Ben Dewey Senior Software Developer twentySix New York http://bendewey.com/blog http://twitter.com/bendewey

Assumptions • Basic knowledge of • Silverlight • Unit Testing • Nice to have knowledge of • MSTest

Overview • What is Testing/TDD • Setting up the Silverlight Unit Testing Test Harness • Basic Unit Test • Asynchronous Unit Tests • Questions

Preface • Unit Testing (MSTest) [TestMethod] publicvoidCan_CreateCar() { // Arrange // Act var car = newCar(); // Assert Assert.IsNotNull(car); } • Test Driven Design (TDD) • Testing first and allowing your tests/requirements to drive your design

Original Unit Testing Framework

April 2010 Silverlight Toolkit • http://silverlight.codeplex.com

Context

Setting up the Test Harness • Add Project • Silverlight Unit Testing Applications

Setting up the Test Harness • Add References • Microsoft.Silverlight.Testing • Microsoft.VisualStudio.QualityTools.UnitTesting.Silverlight • Modify App.xaml.cs private voidApplication_Startup(object sender, StartupEventArgs e){RootVisual = UnitTestSystem.CreateTestPage();}

Asynchronous Unit Tests [TestClass] public classMainPageTests : SilverlightTest { [TestMethod, Asynchronous] public voidCan_ShowHide_Windows() { // Arrangevar controller = new GameController();varmainPage = new MainPage(controller);this.TestPanel.Children.Add(mainPage);varstartWindow = mainPage.FindName("StartWindow") asUIElement;varendWindow = mainPage.FindName("EndWindow") asUIElement; // Act // AssertEnqueueDelay(500);EnqueueCallback(() => {controller.ShowStartScreen = false;Assert.AreEqual(Visibility.Collapsed, startWindow.Visibility);Assert.AreEqual(Visibility.Collapsed, endWindow.Visibility); });EnqueueDelay(500);EnqueueTestComplete(); } }

Links • http://silverlight.codeplex.com • http://www.jeff.wilcox.name/ • Jeff Wilcox – Creator of SUT

Microsoft Design Toolbox http://microsoft.com/design/toolbox

Thank You By, Ben Dewey http://bendewey.com/blog http://twitter.com/bendewey

Unit Testing your Silverlight Applications Using the Silverlight Unit Testing Framework