Test able code
Jiří Pokorný
Jiri.Pokorny@solarwinds.com
Task 1.
» Improve test ability to be able extend the application:
▪ First refactoring is critical, we don’t have tests yet
▪ Extract only necessary code to internal static methods
▪ Later we are able to transform them to instance methods
▪ Best practice is to avoid „public static“
(e.g. SingleTon, Service locator)
Task 1.
▪ Writing unit tests:
• We are going to use „Test first“ strategy
• Allow access internal members by
adding InternalsVisibleTo(„Tests“)
• Add new test project
• Use MSTests attributes to decorate the test methods
• Use Assert to validate the output
• Validate „Test Coverage“ (e.g. using JetBrains dotCover)
Task 2.
» Add new command for multiplication:
▪ Add new failing test First
▪ Add the missing method implementation
▪ Add the command usage to the application
Task 3.
» Change the code so it can be used with Windows phone
application User interface
▪ Extract all calls to „Console“ class
▪ Define user interaction Interface
▪ Create Fake User interface to simulate user interaction
(e.g. Moq library)
▪ Write missing unit tests