Book Image

Cloud-Native Applications in Java

By : Andreas Olsson, Ajay Mahajan, Munish Kumar Gupta, Shyam Sundar S
Book Image

Cloud-Native Applications in Java

By: Andreas Olsson, Ajay Mahajan, Munish Kumar Gupta, Shyam Sundar S

Overview of this book

Businesses today are evolving so rapidly that they are resorting to the elasticity of the cloud to provide a platform to build and deploy their highly scalable applications. This means developers now are faced with the challenge of building build applications that are native to the cloud. For this, they need to be aware of the environment, tools, and resources they’re coding against. If you’re a Java developer who wants to build secure, resilient, robust, and scalable applications that are targeted for cloud-based deployment, this is the book for you. It will be your one stop guide to building cloud-native applications in Java Spring that are hosted in On-prem or cloud providers - AWS and Azure The book begins by explaining the driving factors for cloud adoption and shows you how cloud deployment is different from regular application deployment on a standard data centre. You will learn about design patterns specific to applications running in the cloud and find out how you can build a microservice in Java Spring using REST APIs You will then take a deep dive into the lifecycle of building, testing, and deploying applications with maximum automation to reduce the deployment cycle time. Gradually, you will move on to configuring the AWS and Azure platforms and working with their APIs to deploy your application. Finally, you’ll take a look at API design concerns and their best practices. You’ll also learn how to migrate an existing monolithic application into distributed cloud native applications. By the end, you will understand how to build and monitor a scalable, resilient, and robust cloud native application that is always available and fault tolerant.
Table of Contents (20 chapters)
Title Page
Packt Upsell

Chapter 5. Testing Cloud-Native Applications

In this chapter, we take a deep dive into testing cloud-native applications. Testing has matured a lot from manual testing to automated testing, using various testing tools, strategies, and patterns. The benefit of this approach is that the testing can be done frequently in a failsafe fashion that is important for cloud development.

We will cover the following topics in this chapter:

  • Testing concepts, such as behavior-driven development (BDD) and test-driven development (TDD)
  • Testing patterns, such as A/B testing and test doubles
  • Testing tools, such as JUnit, Cucumber, JaCoCo, and Spring Test
  • Types of testing, such as unit, integration, performance, and stress testing
  • Applying the concepts of BDD and integration testing to the Product service that we developed in Chapter 2Writing Your First Cloud-Native Application, and enhanced in Chapter 4, Extending Your Cloud-Native Application