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TypeScript Microservices

You're reading from TypeScript Microservices

Product type Book

Published in May 2018

Publisher Packt

ISBN-13 9781788830751

Pages 404 pages

Edition 1st Edition

Languages

Concepts

Table of Contents (17) Chapters

Title Page

Copyright and Credits

Packt Upsell

Contributors

Preface

1. Debunking Microservices

2. Gearing up for the Journey

3. Exploring Reactive Programming

4. Beginning Your Microservice Journey

5. Understanding API Gateway

6. Service Registry and Discovery

7. Service State and Interservice Communication

8. Testing, Debugging, and Documenting

9. Deployment, Logging, and Monitoring

10. Hardening Your Application

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Index

Testing

Testing is a fundamental aspect of any software development. No matter how good the development team is, there is always scope for improvement or something has been left out of their training. Testing is usually a time-consuming activity that does not get the required attention at all. This has led to the prevalence of behavior-driven development, where developers write unit test cases, then write code, and then run a coverage report to know the status of the test cases.

What and how to test

As microservices are totally distributed, the main question that comes to mind is what to test and how to test. First, let's have a quick look at the major characteristics that define microservices and need to be tested:

Independent deployment: Whenever any
- small or a safe change has been deployed to a microservice, the microservice is ready to be deployed to production. But how do we know whether the change is safe or not? This is where automation test cases and code coverage come into the picture...

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