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

Setting up the unit test environment


In this section, we will learn how to set up the test environment, and run the first unit test (written using Jasmine) with the Karma test runner.

The Angular app, when set up using the recommended methods such as those mentioned at https://angular.io/guide/setup, one of which was discussed in the Chapter 6Getting Started with Angular, results in the installation of appropriate npm packages, files, and scripts, which can be used for writing and running unit tests with the Angular testing utilities Jasmine and Karma. 

Perform the following steps to get started with running your first unit test:

  1. Create a file under the app folder, and name it helloworld.spec.ts.
  2. Place the following code in the file:
        describe('Hello World',()=>{
            it('unit tests are good',()=> expect(true).toBe(true));
        });
  1. Go to the root folder of the app in Command Prompt.
  2. Execute the following command; (it concurrently runs the command npm run build:watch and...