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

Angular unit testing building blocks


The following are some of the key building blocks to be used when writing unit tests for Angular apps:

  • TestBed: This is the most important building block of Angular testing utilities. TestBed is used to create an Angular testing module using the @NgModule class, which is configured using the configureTestingModule method. Invoking configureTestingModule on TestBed creates a testing environment for the component to be tested. Essentially, the component to be tested is detached from its own module and reattached to the Angular testing module. A metadata object declaring the components to be tested is passed to the configureTestingModule method. 

After configuring the test environment, the next step is to create a component fixture, which is done by invoking the createComponent API on TestBed. Once the createComponent API is invoked, TestBed can't be configured any further.

Note that the configureTestingModule and createComponent methods are invoked within...