Slides from the Dreamforce 2012 session "Top Testing Tips: Data Creation, Web Callouts, and Automation" Description: Take your Apex code testing to the next level with sample code and open source libraries that make these advanced topics easy. Save time with SmartFactory, which automatically creates complex test data for tests isolated from your regular data. Learn how to test web callouts cleanly and completely using interfaces and mocks. Finally, make sure all your team's tests run regularly with native Force.com automation that takes a fraction of the time of full continuous integration.

1. Top Testing Tips
Data Creation, Web Callouts, and Automation
Ami Assayag, CRM Science, @AmiAssayag
Wes Nolte, Tquila, @WesNolte

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3. Ami Assayag
Principal Architect, CRM Science
PhillyForce Leader
@AmiAssayag

4. Wes Nolte
Director of Innovation, Tquila
Force.com MVP
London Dev Group Leader
@WesNolte

5. Couldn’t make it… 
Matthew Botos
Model Metrics
a salesforce.com company
@BotosCloud

6. Our agenda for today
• Review our assigned project
• Review top testing tips:
• Data creation with SmartFactory
• Testing web callouts with interfaces
• Automated testing and continuous integration

7. Our assigned project
You've just been hired as a developer on an existing project and
given this story to implement:
As a conference attendee, I want to create a Registration for a
Session, and post it to my Twitter account.

8. Data Model

9. Business logic is completed!

10. And now we test
• Unit testing
• Integration testing Acceptance
• Automated testing
Integration
Unit

11. Data creation with
SmartFactory

12. Let’s Make a Registration
System.DmlException: Insert failed. First
exception on row 0; first error:
REQUIRED_FIELD_MISSING, Required
fields are missing: [Session__c, Contact__c]:
[Session__c, Contact__c]

13. Oops, Let’s Make a Session
System.DmlException: Insert failed. First
exception on row 0; first error:
REQUIRED_FIELD_MISSING, Required
fields are missing: [Start_Date_Time__c]:
[Start_Date_Time__c]

14. Continue creating test data
• Identify all objects and related objects
• Identify all required fields
• Identify valid values for all required fields
• Populate all required fields
• Rinse & repeat
• OR...

15. SmartFactory for Force.com
• Apex project
• Create test objects
• Autofill fields & lookups
Custom
Contact Account
Object

16. Let’s Try SmartFactory

17. SmartFactory for Force.com
• Several utility methods
• Looking at metadata
• bit.ly/SmartFactory

18. Testing web callouts with
interfaces

19. Post to Twitter Architecture
Business Logic Callout Utility
Trigger
Class Class

20. Integration Test

21. Post to Twitter Architecture (w/ an interface)
Business Logic Callout Utility
Trigger
Class Class
Mock
Implementation
Class
Interface
Production
Implementation
Class

22. It all starts with an Interface…
• Only contains method signatures.
• Implemented by other classes.
• Implement by providing code for interface methods.

23. Improve the callout class w/ the interface
Suddenly our application logic is looking much cleaner.

24. Implementation Class #1: Mock
• Similar code to what we removed from the callout utility

25. Implementation Class #2: Production
• Performs actual callout.

26. Post to Twitter Architecture (w/ an interface)
Business Logic Callout Utility
Trigger
Class Class
Mock
Implementation
Class
Interface
Production
Implementation
Class

27. Using The Interface: Test Method

28. Using The Interface: Business Logic
• Treat the interface the same here!

29. Using interfaces in apex testing
• Summary of advantages
• Tried and tested through Java, .Net and others
• Interfaces decouple code and provide consistency
• Fewer hacks to get tests to work correctly
• Improved code coverage
• Can test multiple callout situations with different “dummy” data
• bit.ly/ApexCalloutTest

30. Automated testing and
continuous integration

31. Automated testing and continuous integration
• Tests are only run on deployment or explicitly in UI
• New production or test code might introduce bugs
• Bugs multiplied in complex team dev scenarios
Early detection of bug requires that you manually “Run All” tests
or implement full-blown CI… or does it?

32. Automated Testing for Force.com (App)
• Free App that installs as a managed package with just a few clicks
• Runs 100% on the Force.com Platform

33. Super Easy to Set Up

34. Test Results in Your Inbox

35. Open Source
• bit.ly/ForceAutoTest
• Pull requests are welcomed

36. Ami Assayag Wes Nolte
Principal Architect Director of Innovation
CRM Science Tquila
@AmiAssayag @WesNolte