End-to-End Web Testing with Cypress: Explore techniques for automated frontend web testing with Cypress and JavaScript

Get to grips with the Cypress framework and learn how to best implement end-to-end automation testing with JavaScript with the help of expert tips, best practices, and real-world testing examples

Key Features

• Write your first end-to-end test and find out how to modernize your testing environment
• Execute test-driven web development and cross-browser testing using Cypress
• Discover the advantages of using Cypress over Selenium and refactor testing for modern web apps

Book Description

Cypress is a modern test automation framework for web-based frontend apps. Learning Cypress will help you overcome the shortcomings of conventional testing solutions such as dependency graph problems, the steep learning curve in setting up end-to-end testing packages, and difficulties in writing explicit time waits for your tests.

In End-to-End Web Testing with Cypress, you'll learn how to use different Cypress tools, including time travel, snapshots, errors, and console output, to write fail-safe and non-flaky tests. You'll discover techniques for performing test-driven development (TDD) with Cypress and write cross-browser tests for your web applications. As you advance, you'll implement tests for a sample application and work with a variety of tools and features within the Cypress ecosystem. Finally, this Cypress book will help you grasp advanced testing concepts such as visual testing and networking.

By the end of this book, you'll have the skills you need to be able to set up Cypress for any web app and understand how to use it to its full potential.

What you will learn

• Get to grips with Cypress and understand its advantages over Selenium
• Explore common Cypress commands, tools, and techniques for writing complete tests for web apps
• Set up and configure Cypress for cross-browser testing
• Understand how to work with elements and animation to write non-flaky tests
• Discover techniques for implementing and handling navigation requests in tests
• Implement visual regression tests with Applitools eyes

Who this book is for

This book is for automation testing professionals, software and web testers, and frontend web developers who have intermediate-level JavaScript and beginner-level test automation knowledge, as well as for complete beginners who are looking to get started with Cypress and learn how it works. You'll also find this book useful if you are a Selenium tester who wants to migrate to Cypress and leverage its capabilities. An intermediate-level understanding of JavaScript programming and beginner-level knowledge of web testing are required.

Waweru Mwaura is a full-stack software engineer and QA automation professional with good experience of working on the JavaScript tech stack.

Table of Contents

1. Installing and Setting up Cypress
2. Differences between Selenium WebDriver and Cypress
3. Working with Cypress Command Line Tools
4. Writing Your first Test
5. Debugging Cypress Tests
6. Writing Cypress Tests Using TDD Approach
7. Understanding Element Interaction in Cypress
8. Understanding Variables and Aliases in Cypress
9. Advanced Uses of Cypress Test Runner
10. Exercises: Navigation and Network Requests
11. Exercise: Stubbing and Spying XHR requests
12. Visual Testing in Cypress