The document discusses unit testing in Salesforce, highlighting its definition, importance, and implementation strategies. It underscores the distinction between unit tests and system tests, while also providing tools and examples for testing within the Salesforce environment. Key concepts include using the Apex Stub API for better focus during testing and the Lightning Testing Service for modern JavaScript unit tests.

1. LEVEL UP YOUR SALESFORCE UNIT
TESTING
Gordon Bockus
Austin Salesforce Developer Group
March 2017

2. WHO AM I?
• Co-Founder at Wagion
• Lightning Development
• Uniting testing to the Core

3. TOPICS
• What is a Unit Test?
• Architect to Enable Tests
• Stub API to the Rescue
• How to Run Tests
• LightningTestingService

4. WHAT IS A UNIT TEST
Unit testing is a software development process
in which the smallest testable parts of
an application, called units, are individually and
independently scrutinized for proper operation.

5. MOTORCYCLE EXAMPLE
Test this
Not this

6. UNIT TESTS ARE NOT
SYSTEM TESTS
• Only test the code in the
method under test
• Avoid complex test setup
• Not just the happy path
• Cover all paths in the method
• Validation
• Success
• Failure

7. SALESFORCE UNIT TESTS
• ClassNameTest
• testMethodNameInfo
• Test.startTest/Test.stopTest
• isTest(SeeAllData=true) Annotation
• Keep it DRY (testUtilities)

8. ARCHITECT TO ENABLE
TESTS
• Controllers/Triggers -
Specific to task at
hand
• Services - Business
Logic
• Dao - Database
Interactions

9. DEMO INTRODUCTION
• https://github.com/gbockus/SFUnitTestLevel
Up
• Lightning Components
• Good Component
• Bad Component

10. STUB API TO THE RESCUE
• Stub out instance
methods
• Focus only on code
under test
• Apex Stub API DOC

11. STUB API LIMITATIONS
• Not stub-able
• Static methods
• Private methods
• Triggers
• Inner classes
• See documentation for full list

12. STUB API
IMPLEMENTATION
• AbstractMock
• AccountServiceMock/ContactServiceMock
(abstract)
• AccountServiceSuccessMock/AccountServic
eExceptionMock/etc (instances)

13. ABSTRACT MOCK

14. ACCOUNT SERVICE MOCK

15. STUBBED CLASS UPDATES

16. UNIT TESTS IMPROVED
• GoodControllerTest

17. TAKE AWAYS
• Pros
• True unit tests
• Testing actual logic is easier
• Less system wide concerns when writing test
• Cons
• Boiler plate code

18. CHALLENGE
• Deploy code in the repo to a development
org and implement missing tests

19. RUNNING TESTS
• IDE
• Salesforce/Developer console
• Ant Migration Tool
• jsforce
• SFDX - sfdx force:apex:test:run

20. LIGHTNING TESTING
SERVICE
• Allows you to write unit tests for lightning javascript
code using modern tooling
• Jasmine
• Mocha
• Install via SFDX or unmanaged package
• Lightning Testing Service

21. THANK YOU
• https://github.com/gbockus/SFUnitTestLevel
Up
• Apex Stub API
• Salesforce Ant Migration Tool
• jsforce
• Lightning Testing Service