Unit Testing & e2e Testing in Nest.js with JEST

Master Unit & e2e Testing in NestJS with Jest, including Controllers, Services, Mocking, Test Modules, and Real API Test

What you’ll learn
✓ Understanding testing in NestJS
✓ Setting up the testing environment with Jest
✓ Writing Unit Tests for Controllers
✓ Writing Unit Tests for Services
✓ Testing NestJS Modules using the Testing Module
✓ Mocking dependencies and providers in tests
✓ Testing authentication and guards
✓ Writing End-to-End (e2e) Tests for APIs
✓ Testing database interactions and responses
✓ Best practices for clean and maintainable test cases

Requirements
● Basic knowledge of JavaScript, TypeScript, NodeJs
● Basic knowledge of MongoDB, Postgres
● Knowledge of API’s

Description
If you want to learn Unit Testing and End-to-End (e2e) Testing in NestJS using Jest, then this course is for you.

NestJS is one of the most powerful frameworks for building scalable backend applications. But writing code is not enough — proper testing ensures your application is reliable and production-ready.

In this course, you will learn how to write unit tests for controllers, services, and modules and how to perform end-to-end testing of APIs using Jest. We will use TypeScript and NestJS’s built-in Testing Module to mock dependencies, test business logic, and verify complete API behavior.

By the end of this course, you will be able to confidently write clean, maintainable, and production-ready tests for your NestJS applications.

=== Super Friendly Support ===

If you ever get stuck, I’m here to help. I try to respond as quickly as possible so you don’t stay blocked while learning.

What we will cover

• Understanding testing in NestJS

• Setting up testing with Jest

• Unit testing controllers and services

• Mocking dependencies and providers

• Using the NestJS Testing Module

• Writing End-to-End (e2e) tests for APIs

• Best practices for maintainable tests

If you want to master testing in NestJS, enroll now and I will see you in the course.

Who this course is for
■ Anyone who want to learn how to learning Unit Testing
■ Anyone who want to learn backend development

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