Book Image

Building Web Apps with Spring 5 and Angular

By : Ajitesh Kumar Shukla
Book Image

Building Web Apps with Spring 5 and Angular

By: Ajitesh Kumar Shukla

Overview of this book

Spring is the most popular application development framework being adopted by millions of developers around the world to create high performing, easily testable, reusable code. Its lightweight nature and extensibility helps you write robust and highly-scalable server-side web applications. Coupled with the power and efficiency of Angular, creating web applications has never been easier. If you want build end-to-end modern web application using Spring and Angular, then this book is for you. The book directly heads to show you how to create the backend with Spring, showing you how to configure the Spring MVC and handle Web requests. It will take you through the key aspects such as building REST API endpoints, using Hibernate, working with Junit 5 etc. Once you have secured and tested the backend, we will go ahead and start working on the front end with Angular. You will learn about fundamentals of Angular and Typescript and create an SPA using components, routing etc. Finally, you will see how to integrate both the applications with REST protocol and deploy the application using tools such as Jenkins and Docker.
Table of Contents (18 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Unit testing strategies


Angular supports unit testing with some of the following:

  • Components
  • Services
  • Pipes

Angular supports the following two different unit testing strategies while performing unit tests with the aforementioned building blocks:

  • Isolated unit tests for services and pipes: Isolated unit tests are about testing the block of code in complete isolation, wherein test doubles are used to replace actual dependencies. As test doubles, test instances are created and injected as constructor parameters. One or more APIs are then invoked on these test instances to continue executing the unit tests. It is recommended to use isolated unit tests for services and pipes. 
  • Angular testing utilities for components: Testing components in an effective manner, however, would require interacting with the Angular environment due to the need for components to interact with templates, or with other components. This is where the Angular testing utilities come into the picture. The following are some of...