1. Unit testing your metro style apps built using XAML
TOOL-529T
Unit testing your metro style apps built using XAML
Peter Provost
Senior Program Manager
Microsoft Corporation
© 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

2. Agenda New unit testing capabilities in Visual Studio 11
Unit testing managed XAML apps
Unit testing native code
Recap
Key takeaways
How to use the new Visual Studio unit testing features
Design your new XAML app for high quality & testability

3. What is unit testing?
Unit testing is a method by which individual units of source code are tested to determine if they are fit for use
A unit is the smallest testable part of an app
Unit tests are typically written and run by software developers to ensure that code meets its design and behaves as intended

4. Other kinds of testing Integration testing
Confirm that the parts work when put together
Functional or system testing
Confirm that the whole system meets the specified requirements
Exploratory testing
A tester intentionally explores areas of the system, looking for inconsistencies or incorrect behavior

5. Effective unit testing is one of the biggest contributors to high quality software.

6. Unit testing features in
Visual Studio 11

7. Unit test explorer
New, extensible test runner interface in Visual Studio 11
All important information available at a glance
Designed for developers writing tests
Fast and scalable
Available in Win8Express, Pro, Premium and Ultimate editions

8. Test framework extensibility
How do you want to test today?
New plugin model can support any unit testing framework
Built in support for
VS managed tests (aka MS-Test)
New VS native unit testing framework

9. Visual Studio 11 Unit Test Explorer
demo
Visual Studio 11 Unit Test Explorer
A quick look at the new Unit Test Explorer and unit testing Metro style apps

10. Unit testing managed XAML apps

11. Unit Testing an existing managed XAML app
demo
Unit Testing an existing managed XAML app
What happens when you take an existing app that was not designed for testing and try to add unit tests to it?

12. Windows 8 concepts & issues
The AppContainer sandbox
Isolates your app from the system and vice-versa
Prevents use of many .NET APIs
Requires a special kind of unit test project
Dealing with XAML issues
XAML can only be properly rendered within your app
Try to avoid putting much in the code-behind file

13. Key elements for success
Design for testability
Test units in isolation from one another
Isolate dependencies
Write tests while you code and run them often

14. Unit Testing an existing managed XAML app
demo
Unit Testing an existing managed XAML app
Using some well-known patterns to separate logic from UI, we can make the app very easy to test.

15. Unit testing native code

16. Native Unit Testing framework
In Visual Studio 11 we will be introducing a new Unit Testing Framework for C/C++
Speedy test authoring with terse syntax
Light weight, performant test discovery and execution
Tests are isolated and do not pollute the environment
Fully featured and extensible: fixtures, attributes, assertions, logging, expected exceptions

17. Testing native C++ overview
Write your tests in the same language you write your code
Design for testability, test in isolation, run your tests frequently
Deal with the Windows 8 specific concepts and issues

18. Unit testing native code
demo
Unit testing native code
If you are using native code today, or plan to use it for your new apps, you can have the same unit testing experience

19. Recap

20. Unit testing Metro style XAML apps
Visual Studio 11 brings a new focus on developer testing with an improved user experience and extension model
Managed or native code, you choose!
You should use well-known design patterns like MVVM for improved testability

21. Related sessions
[TOOL-455T] Developing and testing on Windows 8 with Hyper-V
[TOOL-515T] Tips and tricks for developing Metro style apps using XAML
[TOOL-530T] Manual testing of Windows Metro style apps built using HTML
[TOOL-793T] Working on an agile team with Visual Studio 11 and Team Foundation Server 11

22. thank you Feedback and questions http://forums.dev.windows.com
Session feedback

23. 6/4/2018 4:27 AM
© 2011 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.
© 2011 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries.
The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.