Book Image

Implementing AWS: Design, Build, and Manage your Infrastructure

By : Yohan Wadia, Rowan Udell, Lucas Chan, Udita Gupta
Book Image

Implementing AWS: Design, Build, and Manage your Infrastructure

By: Yohan Wadia, Rowan Udell, Lucas Chan, Udita Gupta

Overview of this book

With this Learning Path, you’ll explore techniques to easily manage applications on the AWS cloud. You’ll begin with an introduction to serverless computing, its advantages, and the fundamentals of AWS. The following chapters will guide you on how to manage multiple accounts by setting up consolidated billing, enhancing your application delivery skills, with the latest AWS services such as CodeCommit, CodeDeploy, and CodePipeline to provide continuous delivery and deployment, while also securing and monitoring your environment's workflow. It’ll also add to your understanding of the services AWS Lambda provides to developers. To refine your skills further, it demonstrates how to design, write, test, monitor, and troubleshoot Lambda functions. By the end of this Learning Path, you’ll be able to create a highly secure, fault-tolerant, and scalable environment for your applications. This Learning Path includes content from the following Packt products: • AWS Administration: The Definitive Guide, Second Edition by Yohan Wadia • AWS Administration Cookbook by Rowan Udell, Lucas Chan • Mastering AWS Lambda by Yohan Wadia, Udita Gupta
Table of Contents (29 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Chapter 16. Testing Lambda Functions

In the previous chapter, we explored the basics of writing simple Lambda functions as well as diving deep into Lambda's unique programming model that comprised of modules such as the context object, logging methods, and how to handle exceptions and errors. We also learned a bit about the concepts and benefits of versioning as well as how to create reusable functions with the help of environment variables.

The following chapter is a continuation of the previous chapter where we take a step further from writing the Lambda functions and look at the various ways and techniques used to test them. The following topics are covered in this chapter:

  • Understanding the need for testing your Lambda functions
  • Getting started with simple test cases using Mocha and Chai
  • Exploring Lambda test harness
  • Implementing third-party tools for testing your Lambda functions locally