Drupal 8 Forms and TDD, part 2: form building

In part 1, I showed how you can start using TDD when writing Drupal code, and how to apply it to testing a custom file validation callback. In this part, I'll show how you can test the form building.

Links

• Part 1.
• Part 3.
• Part 4.
• The source code for the example.
• The Composer template for Drupal project used for the project structure.
• The official documentation for writing automated tests in Drupal 8.