Unit Tests

• Code to Check your works

• Isolate specific code to test

  • Classes
  • Functions
  • API Endpoints

• Takes practice

Test stages

Setup

• Create sample database objects
• Decide on inputs

Execution

• Call the code

Assertions

• Confirm expected output

Why write tests?

• Expected in most professional dev teams
• Makes it easier to change code
• Increased confidence
• Saves time
• Better quality code

Test Driven Development

Traditional development

• Implement feature -> Write tests

(TDD)Test driven developemnt

• Write tests -> Implement feature

Why use TDD?

• Increase test coverage
• Ensure tests work
• Encourage good quality code
• Staty focused