oliverdavies.uk/source/_talks/tdd-test-driven-drupal.md

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2021-06-30 07:00:00 +00:00
---
title: TDD - Test Driven Drupal
description: How to write automated tests for Drupal, and how to create a new Drupal module using test driven development.
speakerdeck:
id: 088cb18033064f5cb18d1079795294a1
ratio: '1.77777777777778'
url: 'https://speakerdeck.com/opdavies/tdd-test-driven-drupal'
video:
type: youtube
id: 3AUhpkxZ7DQ
image:
url: /images/talks/test-driven-drupal-development.png
width: 2560
height: 1440
type: image/png
use: [talks]
events:
- event: drupalcamp_london_17
date: 2017-03-04
time: '16:15 - 17:00'
- event: drupalcamp_dublin_17
date: 2017-10-21
time: '12:00 - 12:40'
- event: drupal_bristol
date: 2017-11-22
- event: drupal_somerset
date: 2018-06-14
- event: drupal_dev_days_18
date: 2018-07-05
time: '12:15 - 13:00'
- event: drupalcamp_london_19
date: 2019-03-02
time: '14:00 - 14:45'
- event: nwdug
date: 2020-05-12
remote: true
---
{% block content %}
Testing is important. Why? It allows developers to add new features and edit and refactor existing code without the worry of adding regressions, reduces the reliance on manual testing to discover bugs, and by taking a test driven approach, your implementation code is leaner as you only write what is needed for your tests to pass.
Drupal 7 includes the SimpleTest module for unit and functional testing, whilst Drupal 8 also includes and supports PHPUnit - the defacto PHP testing framework, used by other PHP projects including Symfony and Laravel - making it easier for people to test their code. And with testing being one of the Drupal core gates with tests needing to be included with every new feature or bug fix, and cores 100% pass rate policy, testing has become an essential skill when contributing to core, or when working on your own projects. In this talk, well cover the methodology and terminology involved with automated testing, and then take a test driven approach to creating a new Drupal module.
{% endblock %}