You're reading from Salesforce Platform Enterprise Architecture- fourth edition A must-read guide to help you architect and deliver packaged applications for enterprise needs

Product type Paperback

Published in Mar 2023

Publisher Packt

ISBN-13 9781804619773

Length 712 pages

Edition 4th Edition

Languages

Java

Tools

Salesforce

Concepts

Solution Architecture

Author (1):

Andrew Fawcett

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Table of Contents (23) Chapters

Preface

1. Part I: Key Concepts for Application Development

2. Building and Publishing Your Application FREE CHAPTER

3. Leveraging Platform Features

4. Application Storage

5. Apex Execution and Separation of Concerns

6. Part II: Backend Logic Patterns

7. Application Service Layer

8. Application Domain Layer

9. Application Selector Layer

10. Additional Languages, Compute, and Data Services

11. Part III: Developing the Frontend

12. Building User Interfaces

13. User Interfaces and the Lightning Component Framework

14. Part IV: Extending, Scaling, and Testing an Application

15. Providing Integration and Extensibility

16. Asynchronous Processing and Big Data Volumes

17. Unit Testing

18. Source Control and Continuous Integration

19. Integrating with External Services

20. Adding AI with Einstein

21. Other Books You May Enjoy

22. Index

Unit Testing

Unit testing is a key technique used by developers to maintain a healthy and robust code base. This approach allows developers to write smaller tests that invoke more varied permutations of a given method or a unit of code. Treating each method as a distinct testable piece of code means that not only is the current usage of that method safe from regression but also future usage is protected. This frees the developer to focus on other permutations, such as error scenarios and parameter values beyond those currently in use.

Unit testing is different from integration testing, where many method invocations are tested as a part of an overall business process. Both have a place on the Lightning Platform. In this chapter, we will explore when to use one over the other.

To understand how to adopt unit testing, we first need to understand dependency injection. This is the ability to dynamically substitute the behavior of a dependency, such as a class method or component...