JavaScript: Test-Driven Development (ES6)

Create a more stable and quality-focused development process through test-driven development. Learn foundational techniques for unit and integration tests with JavaScript ES6.

Introduction

• Intro video
• What you should know
• What this course covers
• Software installation

1. Test-Driven Development (TDD) Basics

• What is TDD?
• Advantages of TDD
• Disadvantages of TDD
• The basic TDD cycle
• Writing effective tests
• The three different types of tests

2. Writing Unit Tests

• The purpose of unit testing
• JavaScript frameworks for unit testing
• Writing and running basic tests
• Testing basic functions
• Testing asynchronous functions
• Modifying existing functionality
• To mock or not to mock?
• Challenge: Given criteria, write unit tests
• Solution: Given criteria, write unit tests

3. Writing Integration Tests

• Introduction to integration testing
• How do integration tests fit into TDD?
• Test doubles
• When shouldn't I use test doubles?
• The two categories of integration tests
• JavaScript libraries For integration testing

4. Writing End-to-End Tests

• Integration testing in practice
• Testing Node servers with SuperTest
• Testing an endpoint: The basic approach
• Creating a Mocha setup file

5. Improving Your TDD Workflow

• Testing database communication: Basic setup
• Database setup and teardown in tests
• Ignoring object properties in Mocha
• Using environment variables in testing
• Creating test helpers
• Resetting the database between tests

6. A Real-World Example

• Creating test-doubles with Sinon
• Testing a Node endpoint with SuperTest
• Implementing a server endpoint
• Testing a server's error path
• Challenge: Testing "Not Found"
• Solution: Testing "Not Found"

7. Running Tests

• Run tests automatically
• Checking test coverage with NYC

Conclusion

• Next steps