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NestJS Unit Testing Masterclass
New
Rating: 5.0 out of 5(3 ratings)
4 students
Last updated 5/2026
English

What you'll learn

  • Get access to a complete Ecommerce API source code project for hands-on practice
  • Learn step by step how to write tests using Jest
  • A perfect companion course for the NestJS Super course
  • Practice with a real-world Ecommerce API project

Course content

4 sections12 lectures2h 52m total length
  • Overview15:40

Requirements

  • Basic JavaScript knowledge including async/await, promises, and ES6+ syntax such as destructuring, arrow functions, and modules
  • Familiarity with TypeScript fundamentals including types, interfaces, classes, and decorators
  • Node.js and npm installed on your machine with basic experience running scripts and installing packages

Description

COUPON: 9B16C05D4D737A552F73

Welcome to the NestJS Unit Testing Masterclass — a practical course designed to help backend developers confidently write clean, maintainable, and professional tests using NestJS and Jest.

Testing is one of the most important skills for modern backend developers. In real-world projects, writing reliable unit tests helps prevent bugs, improve code quality, and make applications easier to maintain and scale.

In this course, you will learn step by step how to write unit tests in NestJS using Jest through real examples and practical backend scenarios.

Instead of learning only theory, you will work directly with a real Ecommerce API project and learn how testing is applied in production-style backend development.

What you will learn:

  • Understand the fundamentals of software testing

  • Learn how unit testing works in NestJS

  • Write unit tests using Jest

  • Test services, controllers, repositories, and helper functions

  • Mock dependencies and external services

  • Test authentication and JWT-related logic

  • Learn happy path testing techniques

  • Apply testing in a real-world Ecommerce API project

  • Improve backend code quality and maintainability

This course is perfect for:

  • Backend developers

  • NestJS developers

  • Node.js developers

  • Students learning backend engineering

  • Developers who want to improve testing skills

  • Anyone preparing for real-world backend projects

By the end of this course, you will be able to confidently write professional unit tests for your NestJS applications and understand how testing works in modern backend systems.

Join now and start mastering NestJS testing with Jest.

Who this course is for:

  • Backend developers who know Express or Fastify and want to adopt a structured, scalable architecture for production applications