11. #5 Thou shalt not put code in triggers other than
calling methods and managing execution order
12. #6 Thou shalt utilize maps for queries wherever
possible
13. #7 Thou shalt make use of relationships to reduce
queries wherever possible
14. #8 Thou shalt aim for 100% test coverage
In general test your methods for:
– Positive effects.
• Given proper input it should act like this.
• Not just happy path, but all logic branches.
– Negative effects.
• Given bad data it should error like this.
– Role/Profile/User effects
• Given a user with X profile and Y role it should act like this.
15.
16.
17.
18. #9 Thou shalt write meaningful and useful tests
It’s not a test without assertions.
– Assert(A==B, “Assert failed comment”)
– AssertEquals(A,B, “Assert failed comment”)
– AssertNotEquals(A,B, “Assert failed comment”)
19. #9 Thou shalt write meaningful and useful tests
Test with your own data
– Use Test.StartTest() / Test.StopTest()
20. #9 Thou shalt write meaningful and useful tests
Test one thing at a time
– Maintain Focus
– Just One Thing!
21. #10 Thou shalt limit future calls and use
asynchronous code where possible
In general bias towards batch apex
– Ensure it runs as efficiently as possible.
• Limit and tune time outs for callouts.
• Tune soql queries for efficiency – dev console can help here.
– If you need @future methods.
• Optimize them the same way you would optimize your batch apex.
• Resist methods that would queue many @future calls at once.
(governor limits!)
Declarative crazy. 500+ fields on an object, loads of workflows – It can get really hard to see what’s going on in the same way bad coding can be hard.
Unit tests, by definition test a unit of code. They are not Method tests, testing an entire method, or Functional tests, testing the behaviour of an entire class
If the method you’re testing does multiple units of work, you’d ideally split it up into individual methods each doing one thing, but failing that, at least write one unit test per unit of work.
In other words, if you had a method that created Accounts AND contacts, be sure to write positive, negative and user tests for the the account creation bit of that method, and the contact creation unit of that method.
Not one unit test that did both.