Advanced Testing Techniques on Force.com - Cloudstock London 2012

These are the slides to accompany my presentation on Advanced Testing Techniques on Force.com given at the Cloudstock London 2012 event. The presentation gives a brief overview of mocking, stuibbing testing and how using these ideas can improve our Force.com applications.

Transcript

1. Advanced Testing Techniques on Force.com Paul Battisson
2. Introduction • Paul Battisson (@pbattisson) • Xactium • What? ◦ Mocking ◦ Stubbing ◦ Patterns ◦ Next steps • Why? ◦ Improve testability ◦ Improve flexibility ◦ Work faster
3. acceptance integration 3 Types of Test unit
4. What's Wrong With Force.com Testing? • "Slow" to write • "Slow" to run • Brittle • High data dependence • Tests written badly • Coded badly - highly coupled • Lots of testing of DML
5. More Interfaces • Code against interfaces • Plug sockets (@simongoodyear) • Immediate improvement in flexibility and testability
6. Mock Objects • Implement the same interface • Used in place for a test • Assertions on how we expect the object to be called • Can contain stubs for flow • Allow us to test our object's interaction with its neighbours
8. Stubbing • Simulate real behaviour to get a test to pass • Implement in a mock object or using isRunningTest()*
9. Okay, so what?
10. Test Isolation
11. Less Test Data Setup Insert a Record Required Fields? Validation Rules? Before Trigger After Trigger Instantiate a Mock
12. The Future Dependency Injection Metaprogramming Frameworks & Patterns
13. Thanks • Matthew Botos (@BotosCloud) • Simon Goodyear (@simongoodyear) • Naomi + Xactium (@Xactium)
14. Questions? Thank you for listening! https://github.com/pbattisson/Advanced-Force.com-Testing