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Building Web Apps with Spring 5 and Angular

Building Web Apps with Spring 5 and Angular

By : Shukla
2.1 (8)
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Building Web Apps with Spring 5 and Angular

Building Web Apps with Spring 5 and Angular

2.1 (8)
By: 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 (12 chapters)
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Unit testing the components


Components form the most important building block of any Angular app. Thus, it is of utmost importance to write good unit tests for components, and ensure maximum possible code coverage.

Angular testing utilities will be used for writing unit tests for components. In this regard, concepts discussed earlier such as TestBed, componentFixture, and DebugElement will be used to create the test environment for the components to be tested. In this section, we will take different sample components starting from the most trivial ones to the most complex components, and learn about writing and running unit tests for these components.

Unit testing a component with an external template

As one sets up the Angular app, one can find the most trivial component, AppComponent, in the root folder (src/app) with an external template used. Note that there are no dependencies, such as services. The following is the code for AppComponent saved as the file app.component.ts:

    import {Component...

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