Apex Test Coverage Best Practices

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Apex Test Coverage Best Practices
Track Tour de Force Mastering the Force.com
Platform

• Taggart Matthiesen, salesforce.com

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Taggart Matthiesen Senior Product Manager, Apex
Code
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Agenda

• Development and Testing
• Apex Test Framework
• Testing Scenarios and Examples
• Testing Roadmap
• QA

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Development and Testing

• Testing the afterthought
• Completed after development
• Not enough coverage
• No automation

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Development and Testing

• Testing the afterthought
• Completed after development
• Sacrificed to keep timeline
• Not enough coverage
• Not all scenarios are evaluated
• No automation
• New requirements, manual testing, new resources

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Development and Testing
There is hope
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Benefits of Testing

• Testing the key to successful long term
  development
• Critical component of the development process
• Test Driven Development
• Behavioral validation (positive and negative)
• Validate all logical paths
• Automation, automation, automation
• Test suites / catch regressions
• Supports future changes and extensions
• Provides support for R1, R2, R3, R3b, etc

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Test-Driven Development
Continuous Innovation 27 Major Releases in 9
YearsOn Average Over 100 New Features Per Release
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Apex Test Framework
You shall not PASS!
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Apex Test Framework
public class HelloDevs public static String
getGreeting() return (Test Away!) static
testmethod void testGreeting() String gr
HelloDevs.getGreeting() System.assertEquals(Test
Away!,gr)

• Apex Test Methods
• static testmethod void testGreeting()
• _at_isTest
• Behavioral Assertions
• System.assertEquals(Test Away!, gr)
• Try/Catch assertions (eg dml exceptions)
• System.runAs(user u)
• Test Setup
• Test.startTest() and Test.stopTest()
• Validate bulk operations

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Apex Test Framework
public class HelloDevs public static String
getGreeting() return (Test Away!) static
testmethod void testGreeting() String gr
HelloDevs.getGreeting() System.assertEquals(Test
Away!,gr)

• Code Coverage Statistics
• Number of tests run, test failures
• Code coverage and profiling

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Apex Test Framework

• Mileage Tracker Application
• Requirements
• Track daily mileage for employees
• Limit mileage to 500 miles per day
• Design Components
• Mileage Custom object
• Mileage Trigger
• Mileage Utility Class

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Apex Test Framework Roadmap

• System.runAs() include CRUD and FLS validation
• Callout Support
• Apex Debugger

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Manage. Share. Build. Apply what youve learned

• Testing is Development
• Strive for 100 code coverage
• Test negative and positive behavior (use cases)
• Build your test dataset
• Validate against bulk operations

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