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Course

The Complete Next.js Testing Course

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Chapter 01

How To Get the Most out of This Course

  • Meet Adrian, Your Instructor

    Free
  • Get the Most Out of This Course

    Free
  • Access to a Private 24/7 Community

    Free
  • Environment Setup

    Free

Chapter 02

Introduction to Next.js Testing

  • Welcome to the Course

  • Prerequisites

  • Introduction to Testing

Chapter 03

Types of Testing

  • Introduction to Types of Testing

  • Testing by Scope

  • Testing by Knowledge

  • Testing by Purpose

  • Testing by Execution

Chapter 04

Testing Strategies

  • Introduction to Testing Strategies

  • The Testing Pyramid

  • The Ice Cream Cone Anti-Pattern

  • The Testing Trophy

  • The Honeycomb Strategy

  • The Testing Diamond

  • Choose The Right Testing Strategy

  • Building (and Evolving) Your Testing Strategy

Chapter 05

Testing Workflow in Next.js

  • Git & GitHub

  • IDE — Integrated Development Environment

  • Node.js

  • Docker

Chapter 06

Testing Tools

  • Introduction to Testing Tools

  • Unit Testing Tools

  • Frontend Testing Tools

  • API and Backend Testing Tools

  • End-to-End Testing Tools

  • Common Misunderstandings

Chapter 07

Unit Testing

  • Introduction to Unit Testing

  • Setting Up the Testing Environment

  • Testing the Input Field Component

  • Testing the Image Upload Component

  • Testing the Text Area Component

  • Testing socialFields Component

  • Testing the ProfilePreview Component

  • Unit Testing Best Practices

Chapter 08

Integration Testing

  • Sign-in Page Testing

Chapter 09

End-to-End (E2E) Testing

  • Installing Playwright & Configuration

  • Setting Up Test Database (Global Setup)

  • Global Auth Setup for Tests

  • Writing the E2E Question Flow Test

Chapter 10

Applied Testing: Setup

  • Introduction to DevOverflow

  • Running DevOverflow Locally

  • Setup Testing Environment

  • Code Architecture

  • Your First Test in DevOverflow

Chapter 11

Applied Testing: Unit Testing

  • Form Rendering

  • Form Rendering (Active Lesson)

  • Form Validation

  • Form Validation (Active Lesson)

  • Form Submission

  • Scalable Mock Implementation

  • Resetting Mocks & `beforeEach`

  • Form Success

  • Failure Handling (Active Lesson)

  • Question Form

  • Mock Editor

  • Question Form Rendering

  • Question Form Validation (Active Lesson)

  • Question Submission

  • Question Failure (Active Lesson)

  • Mock Next Auth

  • Answer Form for Authenticated Users

  • Answer Form for Non-Logged-In Users (Active Lesson)

  • Answer Form Submission

  • Mock Question Card Components

  • Question Card

  • Question Card Conditional Rendering (Active Lesson)

  • Question Card Responsiveness

  • Question Card Responsiveness (Active Lesson)

  • Complete Recap: Applied Testing: Unit Testing

Chapter 12

Applied Testing: Server Side

  • Introduction

  • Preparing to Run Server Side Tests

  • Database Setup

  • Jest Integration Setup

Chapter 13

Applied Testing: Server Actions

  • Server Action Validation

  • Server Action Logic

  • Server Action Query

Chapter 14

Applied Testing: AI Integration Tests

  • Introduction

  • AI Generation

Chapter 15

Applied E2E: Browsers & Device Emulation

  • Introduction To Playwright Browsers

  • Cross-Browser Setup with Playwright

  • Advanced Auth Setup (Browser-Specific)

Chapter 16

Applied Testing: End-to-End Testing

  • Installing Playwright & Configuration

  • Your First E2E Test

  • Setting Up Test Database (Global Setup)

  • Fixtures and Types

  • Seeders and Static Fixtures

  • Global Auth Flow

  • Writing the E2E Question Flow Test

  • Playwright Fixture

  • Question Flow

  • Answer Flow

  • User Profile Flow

Chapter 17

Applied Testing: Accessibility Tests

  • Introduction

  • Setup

  • Auth Accessibility

Chapter 18

Applied Testing: Visual Regression

  • Introduction

  • Authentication Visual Regression

Chapter 19

Applied Testing: Performance & Load Tests

  • Introduction

  • Lighthouse Integration

  • Artillery Integration

  • Load Testing

Chapter 20

Applied Testing: Continuous Integration & Deployment (CI/CD)

  • Introduction

  • Designing an Optimized CI/CD Pipeline

Chapter 21

Applied Testing: GitHub Actions

  • Workflow

  • Jobs

  • Lint & Type Check

  • Unit & Integration Jobs

  • E2E Jobs

  • Playwright Config

  • Deploy

Chapter 22

Applied Testing: Circle CI

  • Introduction

  • Workflow

Chapter 23

AI-Powered Testing Workflows

  • Prompt Engineering For Test Generation

  • Writing Tests with ChatGPT

  • Writing Tests with Claude (Anthropic)

  • Test With Gemini CLI

  • Using JetBrains AI Assistant

  • Free AI Extension for VS Code

  • Answer Flow

  • User Profile Flow

  • Playwright Fixture

Course

Environment Setup

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    tick-guideNext Lesson

    Welcome to the Course

    Before diving into the exciting world of JavaScript, let’s set up your development environment for a seamless learning and development experience.

    1. Choose a Browser

    Since JavaScript runs in the browser, you’ll need one to test your code. If you already have a browser like Chrome, Firefox, or Edge, you’re good to go. However, if you’re looking for something fresh, I recommend trying Arc. Arc is an innovative browser with:

    • A collapsible sidebar for better focus.
    • Customizable spaces to organize work.
    • Full-screen views without the traditional top bar.

    That said, any browser will work perfectly fine for this course, so use the one you’re most comfortable with.

    All browsers offer amazing include developer tools allowing you to do range of things, from inspecting currently-loaded HTML, CSS and JavaScript to showing which assets the page has requested and how long they took to load.

    You can open dev tools in any browser by right-clicking the site and clicking inspect. You can also use the shortcut: + + (on Mac) or on your keyboard.

    2. Install Node.js

    Although this course doesn’t cover backend development, having Node.js installed is a great idea. It allows you to run JavaScript outside the browser, and it’s a must-have if you plan to explore tools like package managers or frameworks in the future.

    • Head to Node.js and download the latest LTS (Long-Term Support) version.

    • Installation is straightforward and varies slightly based on your operating system.

    3. Install Git

    While it's not mandatory to have Git installed for this course, it's absolutely essential for your growth as a developer. It's non-negotiable.

    You can download Git from it's website.

    And if you haven’t used it before, I’ll link our complete Git and GitHub Course so you can learn how to use them quickly and effectively.

    4. Choose a Code Editor

    Your is where you’ll spend most of your time writing JavaScript.

    Here are two popular options:

    • Visual Studio Code (VS Code): Lightweight, highly customizable, andpacked with features. It’s the editor I’ll use throughout this course.

    Feel free to explore themes to personalize your editor’s appearance. I personally use the Catppuccin Mocha theme for a dark and sleek look.

    5. Keep It Simple

    You don’t need to install every tool or extension right now. Start with the basics and add as you go. The goal is to have an environment that feels intuitive and supports your learning.

    With your environment ready, you’re all set to dive into this course!

    WebStorm: A powerful IDE with features like intelligent code assistance and free access for non-commercial use.

    Arc Browser
    faviconhttps://arc.net/download
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