Book Image

Angular Cookbook

By : Muhammad Ahsan Ayaz
Book Image

Angular Cookbook

By: Muhammad Ahsan Ayaz

Overview of this book

The Angular framework, powered by Google, is the framework of choice for many web development projects built across varying scales. It’s known to provide much-needed stability and a rich tooling ecosystem for building production-ready web and mobile apps. This recipe-based guide enables you to learn Angular concepts in depth using a step-by-step approach. You’ll explore a wide range of recipes across key tasks in web development that will help you build high-performance apps. The book starts by taking you through core Angular concepts such as Angular components, directives, and services to get you ready for building frontend web apps. You’ll develop web components with Angular and go on to cover advanced concepts such as dynamic components loading and state management with NgRx for achieving real-time performance. Later chapters will focus on recipes for effectively testing your Angular apps to make them fail-safe, before progressing to techniques for optimizing your app’s performance. Finally, you’ll create Progressive Web Apps (PWA) with Angular to provide an intuitive experience for users. By the end of this Angular book, you’ll be able to create full-fledged, professional-looking Angular apps and have the skills you need for frontend development, which are crucial for an enterprise Angular developer.
Table of Contents (15 chapters)

Using Cypress fixtures to provide mock data

When it comes to writing E2E tests, fixtures play a great role in making sure the tests are not flaky. Consider that your tests rely on fetching data from your API server or your tests include snapshot testing, which includes fetching images from a content delivery network (CDN) or a third-party API. Although they're technically required for the tests to run successfully, it is not important that the server data and the images are fetched from the original source, therefore we can create fixtures for them. In this recipe, we'll create fixtures for the users' data as well as for the images to be shown on the UI.

Getting ready

The project that we are going to work with resides in chapter11/start_here/using-cypress-fixtures, inside the cloned repository:

  1. Open the project in VS Code.
  2. Open the terminal and run npm install to install the dependencies of the project.
  3. Once done, run npm run cypress:test.
  4. ...