Petr Novák

Master PHP Unit Testing and Write Better, More Reliable Code

Are you a PHP developer struggling to implement effective testing in your projects? Do terms like "mocking," "test doubles," and "code coverage" seem confusing? This comprehensive guide demystifies unit testing in PHP and shows you exactly how to build robust, maintainable applications using PHPUnit—the industry-standard testing framework.

What Makes This Book Different

Unlike theoretical testing books, this guide focuses exclusively on practical PHP development scenarios. Every example uses real-world PHP code, familiar syntax, and common challenges you face daily. You'll learn by doing, not just reading.

Inside You'll Discover:

Fundamentals Made Simple - Understand core unit testing principles specifically tailored to PHP development, with clear explanations and zero jargon

Step-by-Step PHPUnit Setup - Get PHPUnit running in your environment quickly, whether you're using Composer, modern PHP frameworks, or legacy systems

Practical Testing Techniques - Write meaningful tests for classes, functions, and methods with real PHP examples you can adapt immediately

Advanced Assertions Mastered - Learn sophisticated assertion techniques that make your tests more expressive and maintainable

Mocks and Test Doubles Explained - Understand when and how to use stubs, mocks, and spies to isolate the code you're testing

Taming Legacy PHP Code - Proven strategies for introducing tests into existing codebases without massive refactoring efforts

Framework Integration - Specific guidance for testing Laravel and Symfony applications, including database testing and HTTP testing

Professional Workflows - Set up continuous integration, analyze code coverage, and establish testing pipelines for your PHP projects

Who Should Read This Book

This book is perfect for:

PHP developers new to automated testing

Self-taught programmers wanting to formalize their testing skills

Team leads introducing testing practices to their PHP projects

Experienced developers working with legacy PHP codebases

Anyone preparing for PHP development roles requiring testing knowledge

What You'll Be Able To Do

By the end of this book, you'll confidently:

Write comprehensive test suites for any PHP application

Identify what to test and what to skip

Refactor PHP code with confidence, knowing tests catch regressions

Debug failing tests quickly and efficiently

Integrate testing into your daily development workflow

Improve code quality measurably through coverage analysis

Bonus Reference Materials

The appendices provide quick-reference guides you'll return to repeatedly:

Complete PHPUnit command cheat sheet

Ready-to-use XML configuration examples

Common errors and their solutions

Curated list of Composer packages that enhance testing

Start Writing Better PHP Code Today

Testing isn't just about finding bugs—it's about writing better code from the start. This book shows you how to make testing a natural, even enjoyable, part of your PHP development process. Transform your workflow, increase your confidence, and deliver more reliable PHP applications.

Whether you're maintaining legacy systems or building modern PHP applications, this practical guide gives you the testing skills that separate amateur developers from professionals.

Dargslan s.r.o.

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