Gain insights into writing automated tests for React apps with Jest and React Testing Library. Learn about simulating user interactions and testing asynchronous parts to enhance app reliability.

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Jest - lesson 2

Jest with run command

Jest verbose

Jest coverage

Jest snapshot update

Jest react

Jest react-npm start

Jest react-copy

Jest react-C4

Jest react-C6

Jest react start c6

Jest - lesson 2-copy

Jest sandbox

Jest coverage-copy

Jest react-C4-start

Jest react-C4-start-5000

Jest react-npm start-5000

Jest react start c6-5000

Jest react-C8

The skills acquired from this course will allow you to write automated tests on your React app using Jest and React Testing Library, which are the de-facto testing tools for React. These tests will allow you to ship new versions of your app with confidence. The tests will also allow you to increase your release frequency, allowing you to get features to your customers quicker.

You will learn how to write robust tests that are resilient to breaking when code is improved and refactored, reducing maintenance costs.
The course will teach you how to simulate a user interacting with the app. Beyond that, it will also teach you how to robustly test asynchronous parts of the app.

Regular quizzes and exercises will reinforce knowledge throughout the course.

Testing React Apps with Jest and React Testing Library

## Why debugging is important

Unfortunately, no one writes perfect code all the time. Our code often contains glitches in its first iteration. So, debugging is always a significant part of our daily coding activity.

Test code can have problems just like source code. When a test fails, we may not know whether the problem is in the source code or the test code. So, it is important to be able to debug both the test code and the source code.

If we invest time in learning different ways to debug code, we'll become more efficient.

# Why debugging is important

Unfortunately, no one writes perfect code all the time. Our code often contains glitches in its first iteration. So, debugging is always a significant part of our daily coding activity.

Test code can have problems just like source code. When a test fails, we may not know whether the problem is in the source code or the test code. So, it is important to be able to debug both the test code and the source code.

If we invest time in learning different ways to debug code, we'll become more efficient.

Debugging Tests

Introduction

Getting Started with Jest

Using Matchers

Getting Started with React Testing Library

React Testing Library Queries

Firing Events

Mocking

Testing Different Types of Components

Appendix

Debugging Tests

Why debugging is important