Book Image

Professional React Native

By : Alexander Benedikt Kuttig
Book Image

Professional React Native

By: Alexander Benedikt Kuttig

Overview of this book

The React Native framework offers a range of powerful features that make it possible to efficiently build high-quality, easy-to-maintain frontend applications across multiple platforms such as iOS, Android, Linux, Mac OS X, Windows, and the web, helping you save both time and money. And this book is your key to unlocking its capabilities. Professional React Native provides the ultimate coverage of essential concepts, best practices, advanced processes, and tips for everyday developer problems. The book makes it easy to understand how React Native works under the hood using step-by-step explanations and practical examples so you can use this knowledge to develop highly performant apps. As you follow along, you'll learn the difference between React and React Native, navigate the React Native ecosystem, and revisit the basics of JavaScript and TypeScript needed to create a React Native application. What’s more, you’ll work with animations and even control your app with gestures. Finally, you'll be able to structure larger apps and improve developer efficiency through automated processes, testing, and continuous integration. By the end of this React native app development book, you'll have gained the confidence to build high-performance apps for multiple platforms, even on a bigger scale.
Table of Contents (19 chapters)
1
Part 1: Getting Started with React Native
5
Part 2: Building World-Class Apps with React Native
12
Part 3: React Native in Large-Scale Projects and Organizations

Understanding end-to-end tests

The idea of end-to-end tests is very simple: these tests try to simulate real-world user behavior and verify that the application behaves as expected. Normally, end-to-end tests work as black-box tests.

This means that the testing framework does not know the inner functionality of the application that is being tested. It runs against the release build of the application, which will be shipped.

Understanding the role of end-to-end testing

At first sight, end-to-end tests seem to be a silver bullet for automated testing. Shouldn’t it be enough to simply test all scenarios of our application with end-to-end tests? Do we even need other test types, such as unit tests, integration tests, or component tests?

The answers to these questions are very simple. End-to-end tests are powerful, but they also have some traits that make them only cover certain scenarios very well. First, end-to-end tests run for a long time, so testing all the functionality...