JavaScript: Test-Driven Development (ES6)

Course details

TDD is one of the most hotly discussed subjects in the software development world. Even the most carefully constructed applications grow to the point where debugging and ensuring quality becomes difficult. Test-driven development (TDD) helps with this tremendously by ensuring that all parts of your application are covered by tests. In this course, Shaun Wassell explores the foundational techniques and tools for unit and integration tests. Along the way, he zooms out to examine how they all fit together. Shaun also highlights TDD's strengths and weaknesses and provides real-world examples that showcase how TDD can fit into your development workflow.

Learning objectives
Advantages and disadvantages of TDD
The basic TDD cycle
The purpose of unit testing
Testing basic and asynchronous functions
How integration tests fit into TDD
JavaScript libraries for integration testing
Improving your TDD workflow
Checking the test coverage of the codebase

Concepts

0. Introduction

01 - Intro video
02 - What you should know
03 - What this course covers
04 - Software installation

1. Test-Driven Development (TDD) Basics

05 - What is TDD
06 - Advantages of TDD
07 - Disadvantages of TDD
08 - The basic TDD cycle
09 - Writing effective tests
10 - The three different types of tests

2. Writing Unit Tests

11 - The purpose of unit testing
12 - JavaScript frameworks for unit testing
13 - Writing and running basic tests
14 - Testing basic functions
15 - Testing asynchronous functions
16 - Modifying existing functionality
17 - To mock or not to mock
18 - Challenge - Given criteria, write unit tests
19 - Solution - Given criteria, write unit tests

3. Writing Integration Tests

20 - Introduction to integration testing
21 - How do integration tests fit into TDD
22 - Test doubles
23 - When shouldn't I use test doubles
24 - The two categories of integration tests
25 - JavaScript libraries For integration testing

4. Writing End-to-End Tests

26 - Integration testing in practice
27 - Testing Node servers with SuperTest
28 - Testing an endpoint - The basic approach
29 - Creating a Mocha setup file

5. Improving Your TDD Workflow

30 - Testing database communication - Basic setup
31 - Database setup and teardown in tests
32 - Ignoring object properties in Mocha
33 - Using environment variables in testing
34 - Creating test helpers
35 - Resetting the database between tests

6. A Real-World Example

36 - Creating test-doubles with Sinon
37 - Testing a Node endpoint with SuperTest
38 - Implementing a server endpoint
39 - Testing a server's error path
40 - Challenge - Testing Not Found
41 - Solution - Testing Not Found

7. Running Tests

42 - Run tests automatically
43 - Checking test coverage with NYC

Conclusion

44 - Next steps