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Building Robust, Maintainable Coded UI Tests with Visual Studio 2010

Learn to create effective Coded UI Tests with Visual Studio 2010 to identify UI regression bugs and minimize false positives. This session covers session objectives that include building maintainable tests, utilizing data binding for testing parameters, and tips for effective automation with Microsoft Test Manager. Discover how to design your applications for testability, use naming conventions, and leverage multiple UI map files to organize test elements better. Ensure your tests are robust and less prone to errors for a smoother testing process.

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Building Robust, Maintainable Coded UI Tests with Visual Studio 2010

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  1. Building Robust, Maintainable Coded UI Tests with Visual Studio 2010 Brian Keller Sr. Technical Evangelist – Visual Studio ALM http://blogs.msdn.com/briankel

  2. I work here…

  3. …on this…

  4. …and this. http://bit.ly/ThisWeekC9

  5. I blog here:http://blogs.msdn.com/briankel

  6. http://tinyurl.com/ALM2010Book http://tinyurl.com/TFSBook

  7. Session Objectives and Takeaways • Find more UI regression bugs by employing coded UI tests. • Build and maintain robust coded UI tests. • Create coded UI tests which result in fewer false positives. Bugs Found False Positives Effort

  8. What You’ll Need • Visual Studio 2010 Premium or Ultimate • Feature Pack 2 • C# or VB skills • (optionally) Microsoft Test Manager • Testable application

  9. Test Automation Platform Support

  10. Get Used to Using Using. It’s Useful! using(ApplicationUnderTest.Launch(this.UIMap.LaunchAppParams.UIMyWindowsFormsAppWindowExePath, this.UIMap.LaunchAppParams.UIMyWindowsFormsAppWindowAlternateExePath)) { this.UIMap.SimpleTest(); … }

  11. Understand Searching & Filtering (http://tinyurl.com/SearchAndFilter) Searching is used to look for all POSSIBLE controls. Filtering is used to narrow that list to exactly one match. X, Y is only used to guide where the clicks happen within a control. Mouse.Click(uIGOButton, new Point(19, 18));

  12. Employ Databinding Test -> Windows -> Test View -> Properties -> Select CSV, XML, or Database. this.UIMap.SimpleTestParams.UIMyTextboxEditText= TestContext.DataRow[“col_name"].ToString(); Note: Databindingto test parameters happens automatically when converting from manual test cases.

  13. Make Friendlier Assertions • Makes it easier to analyze test run data. Assert.AreEqual(foo, bar, "Sales tax total is wrong.");

  14. Smile! You’re on Camera. • Image pic = this.<top_level_window>.CaptureImage(); • //Or for entire desktop: Image pic = UITestControl.Desktop.CaptureImage(); • pic.Save(@"c:\file.bmp"); • TestContext.AddResultFile(@"c:\file.bmp");

  15. Microsoft Test Manager -> CUIT Workflow Tips • Mark each step as pass/fail when recording manual tests. • Carefully consider which test cases make sense for automation, and when. • Use the Automation Status field of Test Cases to identify candidates for automation.

  16. Continue on Error For actions that may not happen every time. Playback.PlaybackSettings.ContinueOnError = true; or:

  17. Testing with Firefox • Firefox 3.5 or 3.6 • Requires Visual Studio 2010 Feature Pack 2 //call this at the beginning of your test BrowserWindow.CurrentBrowser = “Firefox”; //instead of clicking the close button This.UIMap.<browser_TLW>.Close();

  18. Multiple UI Map Files (http://tinyurl.com/MultipleUIMaps) • Allows you to separate logical collections of controls. • Easier to edit independently. • Easier to version control. • Requires a bit more up-front effort. • Doesn’t play well with MTM workflow.

  19. Making Your Applications More Testable • Use a testable application stack • Give names to controls • Use naming conventions and stick with them. • If you need to change the names of controls, refactor them along with your tests. • Carefully consider the implications of changing UI flows. • Educate non-test developers on CUITs. • Educate manual testers on CUITs.

  20. What About Load Testing? • Coded UI tests assume they have “control” of the mouse and keyboard. • Load testing can be accomplished but you need one machine (physical or virtual) per virtual user. • See http://msdn.microsoft.com/en-us/library/ff468125.aspx

  21. Playback Settings • Search timeouts • Search behaviors • Error behaviors • See http://tinyurl.com/PlaybackSettings

  22. Windows Automation API 3.0 • If running an O/S prior to Windows 7 / 2008 R2, install this platform update: http://support.microsoft.com/kb/971513/

  23. Session Objectives and Takeaways • Find more UI regression bugs by employing coded UI tests. • Build and maintain robust coded UI tests. • Create coded UI tests which result in fewer false positives.

  24. Resources • http://blogs.msdn.com/briankel • http://blogs.msdn.com/b/mathew_aniyan/ • http://blogs.msdn.com/b/gautamg/ • http://msdn.microsoft.com/en-us/library/dd286726.aspx

  25. Stay up to date with MSDN Belux • Register for our newsletters and stay up to date:http://www.msdn-newsletters.be • Technical updates • Event announcements and registration • Top downloads • Follow our bloghttp://blogs.msdn.com/belux • Join us on Facebookhttp://www.facebook.com/msdnbehttp://www.facebook.com/msdnbelux • LinkedIn: http://linkd.in/msdnbelux/ • Twitter: @msdnbelux DownloadMSDN/TechNet Desktop Gadgethttp://bit.ly/msdntngadget

  26. TechDays 2011 On-Demand • Watchthis session on-demand via Channel9http://channel9.msdn.com/belux • Download to your favorite MP3 or video player • Get access to slides and recommended resources by the speakers

  27. THANK YOU

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