Module Development

Write a Functional Test for Drupal 8, 9, and 10

Functional tests simulate user interactions with Drupal applications, which enables us to test user interfaces and complex workflows. This tutorial guides you through writing functional tests for the anytown module, focusing on custom user registration workflow enhancements.

In this tutorial, we'll:

  • Examine functional test structure.
  • Test anytown_form_user_register_form_alter() customizations.
  • Discuss the functional test execution environment.

By the end of this tutorial, you'll know how to write functional tests that emulate browser interactions with your Drupal application.

Drupal Module Developer Guide