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 part 2, we tackled testing the form building, and in part 3, the form validation. In this final part, I'll show how you can test the form submission.
- Part 1.
- Part 2.
- Part 3.
- 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.
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