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Mastering AWS Lambda

You're reading from   Mastering AWS Lambda Learn how to build and deploy serverless applications

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Product type Paperback
Published in Aug 2017
Publisher Packt
ISBN-13 9781786467690
Length 300 pages
Edition 1st Edition
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Authors (2):
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Udita Gupta Udita Gupta
Author Profile Icon Udita Gupta
Udita Gupta
Yohan Wadia Yohan Wadia
Author Profile Icon Yohan Wadia
Yohan Wadia
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Table of Contents (11) Chapters Close

Preface 1. Introducing AWS Lambda 2. Writing Lambda Functions FREE CHAPTER 3. Testing Lambda Functions 4. Event-Driven Model 5. Extending AWS Lambda with External Services 6. Build and Deploy Serverless Applications with AWS Lambda 7. Monitoring and Troubleshooting AWS Lambda 8. Introducing the Serverless Application Framework 9. AWS Lambda - Use Cases 10. Next Steps with AWS Lambda

The need for testing Lambda function

If you are new to the world of testing or don't write test cases, then you may be thinking "Hey, I am here to write and develop Lambda functions, why do I even need to read this chapter, right?" Well, not so right. Testing is a very crucial part of any code development and should be enforced at all times. The reason is that, tests are an effective way of documenting your codebase and they can also act as a safeguarding mechanism which ensures that only code that is working as expected, and nothing else, is pushed into a production environment.

There are a variety of different tests that you can run on your code, however, for simplicity we can always refer the following test pyramid as a reference:

To know more about the test pyramid, check out this link https://martinfowler.com/bliki/TestPyramid.html.

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