Testing Next.js Apps with Jest, Testing Library and Cypress

What you'll learn
Testing Next . js UI, API, routes, authentication and database interactions
When to use unit testing, integration testing and end-to-end testing -- and why!
Strategies for testing SSG, SSR, ISR and CSR (including cache updates and SWR revalidation intervals)
How to use a test database for tests that involve data fetching and mutations

Requirements
Next . js UI and API (particularly version 10+)
React components and hooks
RECOMMENDED: Jest, Testing Library for React, Cypress
HELPFUL: Mock Service Worker
Description
Learn how to test your Next.js app from top to bottom! Here are some lists to help you understand comprehensive this course is

This course teaches how to test all aspects of a Next.js application, including

UI unit tests

API unit tests

Next.js routes

Cached pages

Data updates (both to the cache and via SWR refresh interval)

Authentication

End-to-End tests for a complete user flow

The course uses a cross-section of testing technologies, featuring:

Jest

React Testing Library

Mock Service Worker

Cypress

Cypress Testing Library

You'll also learn a wide array of testing techniques, such as

Test database

Environment variables

Jest module mocking

Testing definitions and tradeoffs (not necessarily a technique, but helpful in making decisions about what to test!)

The backdrop app being tested in this course is a Popular Concert Venue ("popular" isn't just the description... it's actually the name), which features bands such as The Joyous Nun Riot and Avalanche of Cheese. Randomized band descriptions and images add to the fun.

The instructor is a proven Udemy veteran, with reputation for clear explanations, Q&A responsiveness, conciseness, and useful practice activities. Here are some reviews from the instructor's other courses:

A great course, probably the best testing course I've ever taken.

After watching other courses on the same topic, this is the first one that I'm actually excited to dig into.

This course exceeded all my expectations. It has the right amount between practice and theory. The teacher is amazing and thoughtful and she answers the students.

I have taken several courses on Udemy, and this is the best one where the teacher doesnt just lecture, but actually structures the class so that I learn the material.

Who this course is for
Next . js developers who want to learn how to test all aspects of their app

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