Shows the news capabilities of VS2012 regarding unit testing

1. Unit testing in VS2012
Ricci Gian Maria
http://blogs.ugidotnet.org/rgm
http://www.codewrecks.com
alkampfer@nablasoft.com
@alkampfer

2. Agenda
• A new shiny test runner
• Continuous test and code coverage made
super-easy
• Real or fake? A world of shims.
• Coded-Ui test and Testing Team
• Visual Studio Specific tests
• Running test in a Build

3. A new shiny test runner
• Integrated in VS
• Pluggable test framework
• Simpler to use
• Faster than older runner Test Runner
• More agile-tester-oriented
Agile Tester

4. Most important features on front
• One click Code coverage
• Continuous test runner

5. New features, revamp of older ones
and dropped functionalities
One-click code coverage
No more oscure settings
No more needs of test configuration for basic run
New features
Continuous test (aka run test after builds)
Agile test runner
C++ unit test framework
Removed features
No more dev test impact (only available on builds)
No more tests lists
Old test runner is gone

6. Compatibility with VS2010
Support for VS2010 test project file
New format of test project
No need of .testsettings file
New test project templates
Settings are obsolete and deprecated
Used only for specific scenario like remote
execution
To use Diagnostic data adapter
http://tinyurl.com/vs2012testupgrade

7. Some missing feature for old MsTest
users
• Test Lists –deprecated in 2010 no more
supported
• Still no ability to group tests in test runner
• Run test by category only with command line
test runner
• Vstest.console Calculator.test.dll
/UseVsixExtensions:true /TestCaseFilter: «
TestCategory=xxx»
• Works only for MSTest (or for provider that willingly
parse the TestCategory attribute)

8. Isolation library – Visual Studio fakes
• A Stub is a Test Double with behavior set in
the test to make test repeatable
• A shim or shiv is a small library that
transparently interceps an API.. (Wikipedia)
• They makes untestable code testable
• Only available in VS Ultimate
• Is the last resort to test legacy code for
refactoring/update/upgrade

9. Coded UI tests
• Record User – Software interaction
• Playback the application replaying user
action
• Based on «pluggable» component
• Use better technology when possible
• Permits to third party company to support theirs controls (Es.
Telerik)
• Records high level interation when possible
• Does not record mouse clicks or keyboard strokes only
• Try to understand what the user does
• Aggregates operations
• Collaboration with Test Teams using
Microsoft Test Manager

10. Coded UI New features
• Support for IE9/IE10 (HTML5 support)
• New api focusing on hand-code CUIT
• Description and assertion message in CUIT
test recorder
• News http://tinyurl.com/vs2012cuit

11. Coded UI Test Compatibility with
VS2010
• No Silverlight support (use VS2010 feature
pack 2 unit test project)
• No Firefox support (use VS2010 feature
pack 2 unit test project)
• New API (can be used only in VS2012 CUIT
test project
• Cannot add CUIT to VS2010 test project
that has not already a CUIT in it (create a
CUIT with vs2010, then open in VS2012 to
do repair process)

12. Web Performance tests
• Available since VS 2005 and evolved through
each VS upgrade
• Request/replay based test
• Record in IE
• Manipulation from a specific editor in VS
• Advanced request/response correlation feature
• Advanced extraction rules to grab content from responses
• Easy to write plugin
• Advanced feature es. cycles

13. Run test in builds
• The new test engine is integrated with TFS2012
builds
• Faster runner
• Supports test impact
• Supports third party framework
http://tinyurl.com/VS2012TestDiscover
• Run Nunit, xUnit, etc in a build and have results
automatically stored with the build
• Unit test in build indicates health of the project
• Is the grounding for Continuous Delivery
http://tinyurl.com/TFSContinuousDelivery

14. Grazie agli sponsor