Node.js Unit Testing In-Depth

Name: Node.js Unit Testing In-Depth
Rating: 4.4 (1939 reviews)

A focused, in-depth look into Node.js unit testing, from absolute beginner to very advanced.

Created byMurtez Alrohani

Last updated 2/2026

English

English [Auto],

What you'll learn

Students will be well versed in how to unit test applications, they will be ahead of most other developers in that regard.

Course content

8 sections • 47 lectures • 2h 20m total length

Introduction1:51
Who is this course for?0:25
Target learners who know the basics of Node and how it works, including modules and creating functions. Refresh your knowledge with tutorials or videos about Node before joining this course.
Suggestions on how to study0:49

Course Files0:11
Hi All,
These are the files used in the course, they have the project files AND test files, I suggest you delete / move test files somewhere for the moment while you go through the course and write your own tests along, only use them if you are stuck.
Standard Functions1:21
Callback Functions1:51
Learn how to test a node callback function with Mocha, validating the error-first pattern and a three result, using a delayed demo.js function and done signaling to pass two tests.
Promises 12:39
Promises 20:51
Chai Addons & More Promises3:28
Test Doubles & Sinon0:42
Explore sinon for test doubles, including spies and stubs, to isolate code in unit tests; install with npm install and save as a dev dependency.
Spies3:03
Learn to use spies and test doubles in Node.js unit testing by spying on console.log and console.warn with sinon and sinon-chai, verifying calls, and restoring spies between tests.
Code Isolation1:09
Stubs2:29
Private Code & Rewire4:07
Important Reminder0:15

Depreciation Note0:18
Users.get() - Part 16:54
Users.get() - Part 21:43
Users.delete()4:21
Users.create()7:26
Users.update()2:44
Users.resetPassword()2:03
Mailer.js6:39
Utils.js7:01
Learn how to unit test utils.getHash by stubbing config secret and crypto, isolating the function, and chaining update and digest to produce a hash with md5.
Routes - Part 17:38
Routes - Part 24:22
Routes - Part 33:48
The User Model2:50
Order Class - Part 14:55
Order Class - Part 22:15
Order Class - Part 31:48
Order Class - Part 40:55

Requirements

Basic knowledge of node is required.

Description

This is a focused, in-depth course about unit testing, where we will look at lots of code, and learn how to test it. We will go through everything from the simplest JavaScript function to ES6 classes & private code testing. We will also learn how to test your code coverage, so you always know where you stand.

One of the goals of this course is to teach you how to think about unit testing, and not simply teach you the basic syntax or how to call an assertion.

We will go through most scenarios you will run into day to day, as well as address a number of issues and examples ignored by most unit testing courses available online.

You should have some node experience, you don't need to be an expert, but you should at least know the basics.

I am always looking to improve the course, please send me any feedback you may have directly!

Please go ahead and add me on LinkedIn, I love to connect with my students (I also love endorsements :D)

Who this course is for:

All nodejs developers, or devs who wish to learn more about unit testing using node.

Node.js Unit Testing In-Depth

What you'll learn

Explore related topics

Course content

Introduction3 lectures • 3min

Mocha, Chai & Setup7 lectures • 26min

Basics of Testing12 lectures • 22min

Testing The App17 lectures • 1hr 8min

Test Coverage & Warnings3 lectures • 8min

Bonus3 lectures • 13min

Bonus - Anyone trying to improve in tech interviews1 lecture • 1min

Conclusion1 lecture • 1min

Requirements

Description

Who this course is for: