Mastering React Testing: Rtl, Vitest & Msw

Build robust React apps with React Testing Library, Vitest, and MSW, mastering modern testing techniques.

What you'll learn

Write user-focused tests for React components with React Testing Library, ensuring robust and accessible applications.

Set up and run efficient, fast tests using Vitest, seamlessly integrated with Vite for modern React projects.

Mock HTTP requests and responses with Mock Service Worker (MSW) for reliable and isolated API testing.

Adopt Test-Driven Development (TDD) to create bug-free, well-designed features by writing tests before implementation.

Requirements

A basic understanding of React and its core concepts is required.

Familiarity with TypeScript is helpful, as it’s used in the course, but beginners can follow along and learn.

An IDE (like Visual Studio Code) and Node installed on your machine are recommended to set up and run projects.

No prior testing experience is required – this course is designed to guide you from the fundamentals to advanced techniques.

Description

Mastering React Testing: RTL, Vitest & MSWIn the world of modern web development, testing is a vital skill for ensuring application reliability, maintainability, and user satisfaction. This course, "Mastering React Testing: RTL, Vitest & MSW," is designed to equip you with practical knowledge and hands-on experience to write robust, efficient tests for React applications.What You'll LearnThis course covers essential tools and methodologies for React testing, including:React Testing Library (RTL): Learn how to write user-centric tests for React components, leveraging RTL's intuitive API to query and interact with the DOM as users would.Vitest: Dive into modern test running with Vitest, a powerful and fast alternative to Jest, seamlessly integrated with Vite.Mock Service Worker (MSW): Master the art of mocking API calls for both development and testing, ensuring controlled and reliable test environments for HTTP interactions.Test-Driven Development (TDD): Adopt a TDD mindset with structured exercises, building features while maintaining test integrity.Comprehensive Testing Approaches:Unit Tests: Isolate and validate individual component logic.Integration Tests: Verify the seamless interaction of components.Form Testing: Handle input validations and user interactions.Mocking and Error Handling: Simulate complex scenarios, such as server errors, to validate application behavior.Projects You'll BuildThis course incorporates real-world projects, providing context and application for the concepts taught:Testing Template: Set up a reusable project template using Vite, TypeScript, Vitest, and React Testing Library.Reviews App: Develop and test a reviews application, integrating dynamic forms, list rendering, and component interaction.Focus Flow: Apply TDD to create a task management application, emphasizing the "red-green-refactor" workflow.Posts Manager: Build a CRUD application with mocked APIs using MSW, testing every aspect from fetching data to handling user actions.Hands-On ChallengesThroughout the course, you'll tackle hands-on exercises that simulate real-world challenges:Writing your first tests with RTLTesting user interactions like clicks, typing, and form submissionsImplementing context API for global state management and testing its behaviorMocking server responses for different HTTP methods (GET, POST, PUT, DELETE)Simulating error scenarios to ensure your app handles failures gracefullyWhy This Course?Whether you're a developer looking to strengthen your testing skills or a React enthusiast eager to write more reliable code, this course offers everything you need. By the end, you'll be confident in writing maintainable tests, debugging efficiently, and delivering higher-quality applications.Join us and transform how you write and test React applications!

Overview

Section 1: Introduction

Lecture 1 Course Info

Section 2: React Testing Library Tutorial

Lecture 2 Main Course Repo !!! Important !!!

Lecture 3 Install/Setup Course Repository

Lecture 4 Files and Folders

Lecture 5 Explore First Test File

Lecture 6 Test Validation Details

Lecture 7 Vitest Info

Lecture 8 - Component

Lecture 9 SearchByText Methods - Overview

Lecture 10 SearchByText Methods - Test File

Lecture 11 Test Driven Development Example

Lecture 12 Component

Lecture 13 SearchByRole Methods Overview

Lecture 14 SearchByRole Test File

Lecture 15 User Interactions Component

Lecture 16 User Interactions - Test File

Lecture 17 Form Testing - Sandbox

Lecture 18 Test Empty Inputs

Lecture 19 Test Typing In The Inputs

Lecture 20 Refactor

Lecture 21 Form Testing - Remaining Tests

Lecture 22 Reviews App - Logic

Lecture 23 Reviews App - List Component Unit Tests

Lecture 24 Reviews App - Form Component Unit Tests

Lecture 25 Reviews App - Sandbox Component Integration Tests

Section 3: React Testing 101: Application Setup and Configuration

Lecture 26 Create and Configure Template for Testing React Applications

Section 4: Test Driven Development - Focus Flow App

Lecture 27 Focus Flow App - Intro

Lecture 28 Focus Flow App - Code Core Logic

Lecture 29 Focus Flow App - First Form Component Test

Lecture 30 Focus Flow App - Remaining Form Component Tests

Lecture 31 Focus Flow App - List Component Tests

Lecture 32 Focus Flow App - Card Component Tests

Lecture 33 Focus Flow App - Context API

Lecture 34 Focus Flow App - App Component Integration Tests

Section 5: Mock Service Worker - Mocking API's

Lecture 35 MSW - Intro

Lecture 36 MSW - JSON Web Server and HTTP Requests

Lecture 37 MSW - Main Logic

Lecture 38 MSW - Front End

Lecture 39 MSW - Form, List and Item Unit Tests

Lecture 40 Mock Service Worker - Info

Lecture 41 MSW - Mock Fetch Posts

Lecture 42 MSW - Mock Remaining Requests

Lecture 43 MSW - Mock HTTP Error Responses

Section 6: Bonus

Lecture 44 Bonus

Developers looking to master testing React applications using modern tools like RTL, Vitest, and MSW.,React developers eager to enhance their skills with Test-Driven Development (TDD) practices.,Engineers interested in creating robust, maintainable, and fully tested React applications.,Intermediate React developers wanting to integrate TypeScript and testing frameworks into their workflow.