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Force.com Enterprise Architecture

You're reading from   Force.com Enterprise Architecture Blend industry best practices to architect and deliver packaged Force.com applications that cater to enterprise business needs

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Product type Paperback
Published in Sep 2014
Publisher
ISBN-13 9781782172994
Length 402 pages
Edition 1st Edition
Languages
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Author (1):
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Andrew Fawcett Andrew Fawcett
Author Profile Icon Andrew Fawcett
Andrew Fawcett
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Toc

Table of Contents (13) Chapters Close

Preface 1. Building, Publishing, and Supporting Your Application FREE CHAPTER 2. Leveraging Platform Features 3. Application Storage 4. Apex Execution and Separation of Concerns 5. Application Service Layer 6. Application Domain Layer 7. Application Selector Layer 8. User Interface 9. Providing Integration and Extensibility 10. Asynchronous Processing and Big Data Volumes 11. Source Control and Continuous Integration Index

Testing the Service layer


It is tempting to allow the testing of the Service layer to be done via tests around the calling code, such as Visualforce controller tests. However, depending solely on this type of testing leaves the Service layer logic open to other use cases that may not strictly be covered by the controller logic. For example, a custom controller using StandardController will only pass in a single record and not multiple ones.

Make sure to develop specific Apex tests against the Service layer as the functionality is developed. Although outside the scope of this book, Service layer development is an ideal candidate for practicing Test Driven Development.

Mocking the Service layer

Sometimes, the data setup requirements of the Service layer are such that it makes writing Apex tests for controllers or other callers, such as Batch Apex, quite complex and thus expensive, not only in server time for the test to run (due to data setup for each test method) but also in developer time...

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