Unit Testing your Silverlight Applications Using the Silverlight Unit Testing Framework

1. 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

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

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

4. 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

5. Original Unit Testing Framework

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

7. Context

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

9. 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();}

10. 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();        }     }

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

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

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