In general, we perceive the frontend part of a user-facing application as difficult to test in an automated way, and we often relegate these checks to a manual task. In this article, we examine how to use the Puppeteer tool and its PHP bridge, PuPHPeteer, to ensure deterministic validation of the browser side of a web application.

This month we’re covering a full-featured unit and Behavior-Driven Development (BDD) test framework named Kahlan. Kahlan is similar to RSpec (Ruby) and JSpec (Java) using BDD style syntax where you describe the behavior your application should have.

In this series, we look at using Behavior-Driven Development (BDD) and specification by example to develop a RESTful API. In Part Two we introduce Behavior-Driven Development as a way of communicating with non-developers, our stakeholders.

In this series, we look at using Behavior-Driven Development (BDD) and specification by example to develop a RESTful API with JSON-formatted request and response. In Part One we introduce these concepts, design our database, and implement a minimal working API.