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Drupal 9 Module Development

You're reading from   Drupal 9 Module Development Get up and running with building powerful Drupal modules and applications

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Product type Paperback
Published in Aug 2020
Publisher Packt
ISBN-13 9781800204621
Length 626 pages
Edition 3rd Edition
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Author (1):
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Daniel Sipos Daniel Sipos
Author Profile Icon Daniel Sipos
Daniel Sipos
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Table of Contents (20) Chapters Close

Preface 1. Chapter 1: Developing for Drupal 9 2. Chapter 2: Creating Your First Module FREE CHAPTER 3. Chapter 3: Logging and Mailing 4. Chapter 4: Theming 5. Chapter 5: Menus and Menu Links 6. Chapter 6: Data Modeling and Storage 7. Chapter 7: Your Own Custom Entity and Plugin Types 8. Chapter 8: The Database API 9. Chapter 9: Custom Fields 10. Chapter 10: Access Control 11. Chapter 11: Caching 12. Chapter 12: JavaScript and the Ajax API 13. Chapter 13: Internationalization and Languages 14. Chapter 14: Batches, Queues, and Cron 15. Chapter 15: Views 16. Chapter 16: Working with Files and Images 17. Chapter 17: Automated Testing 18. Chapter 18: Drupal Security 19. Other Books You May Enjoy

Chapter 17: Automated Testing

Automated testing is a process in which we rely on special software to continuously run pre-defined tests that verify the integrity of our application. To this end, automated tests are collections of steps that cover the functionality of an application and compare triggered outcomes to expected ones.

Manual testing is a great way to ensure that a piece of written functionality works as expected. The main problem encountered by most adopters of this strategy, especially those who use it exclusively, is regression. Once a piece of functionality is tested, the only way that you can guarantee that regressions (or bugs) were not introduced by another piece of functionality is by retesting it. And as the application grows, this becomes impossible to handle. This is where automated tests come in.

Automated testing uses special software that has an API that allows us to automate the steps involved in testing functionality. This means that we can rely on...

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