Book Image

Test-Driven Development with PHP 8

By : Rainier Sarabia
Book Image

Test-Driven Development with PHP 8

By: Rainier Sarabia

Overview of this book

PHP web developers end up building complex enterprise projects without prior experience in test-driven and behavior-driven development which results in software that’s complex and difficult to maintain. This step-by-step guide helps you manage the complexities of large-scale web applications. It takes you through the processes of working on a project, starting from understanding business requirements and translating them into actual maintainable software, to automated deployments. You’ll learn how to break down business requirements into workable and actionable lists using Jira. Using those organized lists of business requirements, you’ll understand how to implement behavior-driven development (BDD) and test-driven development (TDD) to start writing maintainable PHP code. You’ll explore how to use the automated tests to help you stop introducing regressions to an application each time you release code by using continuous integration. By the end of this book, you’ll have learned how to start a PHP project, break down the requirements, build test scenarios and automated tests, and write more testable and maintainable PHP code. By learning these processes, you’ll be able to develop more maintainable, and reliable enterprise PHP applications.
Table of Contents (17 chapters)
Part 1 – Technical Background and Setup
Part 2 – Implementing Test-Driven Development in a PHP Project
Part 3 – Deployment Automation and Monitoring

Inheritance in OOP

Inheritance in OOP is a concept in which an object can acquire the methods and properties of another object.

Inheritance can help developers reuse functions for very related objects. You probably heard of the Don’t Repeat Yourself (DRY) principle; inheritance can help with writing less code and fewer repetitions too to help you to reuse codes.

Objects such as Cavoodle and Dog are related – we know that Cavoodle is a type of Dog. The functions available for Dog and Cavoodle should be focused on what Dog and Cavoodle should be able to do. If you have a Dog object and it has a computeTax function, for example, that function is not related to the Dog object and you’re probably doing something wrong – it has low cohesion. Having high cohesion means that your class is focused on doing what your class should really be doing. By having high cohesion, it’s easier to decide if an object should be an object that can be inherited, as...