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Unit Testing in Node.js with Jest - e2e Testing & more (Udemy.com)

Nodejs Unit Testing with Jest, e2e Testing, Test Coverage, Test Driven Development (TDD), Mocking and more

Created by: Ghulam Abbas

Last updated April 2026

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What you will learn

  • In depth understanding of unit testing
  • Will be able to unit testing a complete Node API
  • Understand all about Mocks, Spy and more
  • Nodejs unit testing & e2e testing using Jest
  • Testing a complete REST API
  • Learn how to write unit tests for errors
  • e2e testing of Node API
  • All about Jest
  • Basics of Test Driven Development (TDD)
  • How to generate Test Coverage Report
  • much more…

How it compares

Against the other 281 rated Udemy courses in Software Testing on CourseDuck:

  • Rating4.5 out of 5higher than 51% of them
  • Reviews67#267 of 282 by number of reviews
  • Length4.5 hoursshorter than 64% of them
  • Last updatedApril 2026more recently than 69% of them

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Course Description

If you have any confusion or question about Unit testing in your mind, then you are at the right place. In this, In-depth Node.js Unit Testing course we will start from scratch and write units test with Jest.


Unit testing can be really confusing something especially if you are a beginner. In this course, we will start from the basics of Jest and then write units of a complete Jobs API that contains each and every example.


We will write unit tests for our controllers, models, utils, middleware, and much more. We will talk about how to handle error cases in Jest and how we can mock different libraries or packages.


You don’t need to be a Node.js expert for this course but you should know basic and should how to build an API. We will cover all the particle cases of unit testing.


We will also take a deep dive into the e2e Testing in which we will test our API from A-Z to make sure every part of the API is working as expected. We will also learn how to generate a Test Coverage Report with Jest which will give us an idea of how much code of our API is covered in Unit Testing and e2e Testing.


Topic Covered in this Unit Testing Course


  • Basics of Unit Testing in Jest

  • Testing API Controllers

  • Testing Middleware’s

  • Testing Models

  • Testing Utils

  • e2e Testing

  • Jest Test Coverage

  • Test Driven Development

  • React Unit Testing Basics - BONUS



If you are willing to learn or improve your Unit Testing skills then I will see you in the course!


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Instructor Details

Ghulam Abbas

Hello, I’m Ghulam Abbas — a Full-Stack Software Engineer and passionate educator dedicated to helping developers build real-world skills.


Over the years, I’ve created multiple in-depth programming courses focused on modern web development, full-stack architecture, and production-ready applications. My teaching style focuses on practical learning, where students don’t just watch tutorials — they build complete projects and understand how real systems work.


Today, my courses have helped 82,000+ students across 192+ countries gain valuable development skills and move forward in their careers. From beginners taking their first steps in programming to developers looking to master JavaScript, Node.js, React, and full-stack development, my goal is to make complex topics clear, practical, and industry-relevant.


I believe the best way to learn programming is by building real projects, understanding concepts deeply, and applying them in the real world.

If you're ready to level up your development skills and build powerful applications, you’re in the right place.


Let’s build something amazing together.

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Reviews

4.5

67 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Alvaro Pedraza on 1/23/2026

It is a great thing that the instructor takes time to answer the questions. Also, the course covers pretty much what I expect about this topic

By Bonface Navade on 8/22/2025

Very informative and understandable.

By Phuc Do Huu on 2/15/2025

very good course if you are a newbie

By Alejandro Lamas on 4/29/2023

Muy bien abarcados los temas principales y lleva bien la teoría con la practica.

By Yuliana Murillo Hurtado on 3/26/2023

Basic, short but good. It would have been better to go deeper into e2e and TDD testing.

By Fml on 2/28/2023

Not bad, pretty much good for beginners as it work through step-by-step guides.

By Daniel Sandoval on 2/20/2023

This is exactly what I was looking for. I just need to apply the code with Sinonjs but the course worked for me. A very complete and understandable course.

By Madhu N on 2/14/2023

Nice course to learn automation testing, explanation is good

By Daniel R on 1/16/2023

i didnt get that part with all the mocks in unit testing. would have wished for more detailed explanation.

By Davor Jovanovic on 12/30/2022

Overall, the course is good and gives a good overview of unit testing in NodeJS Express applications. I rate this course 4 stars because testing with Jest and TypeScript is not covered. I personally consider it lazy not to do it in TypeScript, because any scalable app will utilize TS, it is too easy to do it in plain JS compared to TS. On the other hand, the instructor is really devoted to help students and to reach out to anyone who has any issue regarding course, therefore, he gets 5 stars from me.

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Quality Score

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Overall Score : 90 / 100