You're reading from Mastering Apex Programming A developer's guide to learning advanced techniques and best practices for building robust Salesforce applications

Product type Paperback

Published in Nov 2020

Publisher Packt

ISBN-13 9781800200920

Length 368 pages

Edition 1st Edition

Languages

Apex

Tools

Salesforce

Concepts

Enterprise Resource Planning

Author (1):

Paul Battisson

View More author details

Table of Contents (21) Chapters

Preface

1. Section 1 – Triggers, Testing, and Security

2. Chapter 1: Common Apex Mistakes FREE CHAPTER

3. Chapter 2: Debugging Apex

4. Chapter 3: Triggers and Managing Trigger Execution

5. Chapter 4: Exceptions and Exception Handling

6. Chapter 5: Testing Apex Code

7. Chapter 6: Secure Apex Programming

8. Section 2 – Asynchronous Apex and Apex REST

9. Chapter 7: Utilizing Future Methods

10. Chapter 8: Working with Batch Apex

11. Chapter 9: Working with Queueable Apex

12. Chapter 10: Scheduling Apex Jobs

13. Chapter 11: Using Platform Events

14. Chapter 12: Apex REST and Custom Web Services

15. Section 3 – Apex Performance

16. Chapter 13: Performance and the Salesforce Governor Limits

17. Chapter 14: Performance Profiling

18. Chapter 15: Improving Apex Performance

19. Chapter 16: Performance and Application Architectures

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Testing RESTful web services with static resources

For obvious reasons, Salesforce does not make callouts to external web services when running Apex tests. There is no guarantee an endpoint is defined or available for testing, and the callout would hinder and slow down the running of any unit tests by an order of magnitude.

Because of this, we have to be able to provide mock responses to any web service callouts made within our tests and return the appropriate response for the test to utilize. For those unfamiliar with the terminology, mocking a service simply means providing an implementation to act in its place. In this case, we will be providing a placeholder for the responding endpoint for testing purposes.

Salesforce provides an interface called HttpCalloutMock that a developer can implement as part of their unit testing when handling HyperText Transfer Protocol (HTTP) callouts. Salesforce also provides a couple of standard implementations of this interface to help in...