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Mastering React Test-Driven Development: Build rock-solid, well-tested web apps with React, Redux and GraphQL

Daniel Irvine

€43.99

4.6 (12 Ratings)

Paperback May 2019 496 pages 1st Edition

Daniel Irvine

€43.99

4.6 (12 Ratings)

Paperback May 2019 496 pages 1st Edition

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Key benefits

Learn the TDD process using the React framework
Build complex, real-world applications with a pragmatic approach to TDD
Use Cucumber for acceptance and BDD testing, bringing TDD to the wider team

Description

Many programmers are aware of TDD but struggle to apply it beyond basic examples. This book teaches how to build complex, real-world applications using Test-Driven Development (TDD). It takes a first principles approach to the TDD process using plain Jest and includes test-driving the integration of libraries including React Router, Redux, and Relay (GraphQL). Readers will practice systematic refactoring while building out their own test framework, gaining a deep understanding of TDD tools and techniques. They will learn how to test-drive features such as client- and server-side form validation, data filtering and searching, navigation and user workflow, undo/redo, animation, LocalStorage access, WebSocket communication, and querying GraphQL endpoints. The book covers refactoring codebases to use the React Router and Redux libraries. via TDD. Redux is explored in depth, with reducers, middleware, sagas, and connected React components. The book also covers acceptance testing using Cucumber and Puppeteer. The book is fully up to date with React 16.9 and has in-depth coverage of hooks and the ‘act’ test helper.

Who is this book for?

The target audience for this book is JavaScript developers who are looking to implement test-driven and behavior-driven approaches for their React applications.

What you will learn

Build test-driven applications using React 16.9+ and Jest
Build complete web applications using a variety of HTML input elements
Understand the different types of test double and when to apply them
Test-drive the Integration of libraries such as React Router, Redux, and Relay (GraphQL)
Learn when to be pragmatic and how to apply TDD shortcuts
Test-drive interaction with browser APIs including fetch and WebSocket
Use Cucumber.js and Puppeteer to build BDD-style acceptance tests for your applications
Build and test async Redux code using redux-saga and expect-redux

Estimated delivery fee Deliver to Greece

Premium delivery 7 - 10 business days

€17.95

(Includes tracking information)

What do you get with Print?

Instant access to your digital eBook copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

Download this book in EPUB and PDF formats

Access this title in our online reader with advanced features

DRM FREE - Read whenever, wherever and however you want

AI Assistant (beta) to help accelerate your learning

Estimated delivery fee Deliver to Greece

Premium delivery 7 - 10 business days

€17.95

(Includes tracking information)

Product Details

Publication date : May 03, 2019

Length: 496 pages

Edition : 1st

Language : English

ISBN-13 : 9781789133417

Category :

Web Development

Languages :

JavaScript

Concepts :

Test Driven Development

Tools :

GraphQL

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20 Chapters

Section 1: First Principles of TDD

First Steps with Test-Driven Development

Technical requirements

Creating a new React project from scratch

Displaying data with your first test

Refactoring your work

Writing great tests

Rendering lists and detail views

Summary

Exercises

Further learning

Test-driving Data Input with React

Extracting a test helper

Adding a form element

Accepting text input

Selecting from a dropdown

Making a choice from radio buttons

Summary

Exercises

Further learning

Exploring Test Doubles

What is a test double?

Submitting forms using spies

Stubbing the fetch API

Extracting test helpers

Summary

Exercises

Further learning

Creating a User Interface

Fetching data on load with useEffect

Using props within useEffect

Passing customer data through to AppointmentForm

Working with the shallow renderer

Building a new root component

Summary

Further learning

Section 2: Building a Single-Page Application

Humanizing Forms

Performing client-side validation

Handling server errors

Indicating that the form has been submitted

Summary

Exercises

Further learning

Filtering and Searching Data

Displaying tabular data fetched from an endpoint

Paging through a large data set

Filtering data

Adding table row actions

Summary

Exercises

Test-driving React Router

General rules for test-driving React Router

Building a root component

Using the location query string to store component state

Test-driving Redux

Test-driving a Redux saga

Making asynchronous requests with sagas

Switching out component state for Redux state

Shifting workflow to Redux

Test-driving GraphQL

Testing the Relay environment

Building the GraphQL reducer

Building the CustomerHistory component

Summary

Exercises

Further learning

Section 3: Interactivity

Building a Logo Interpreter

Studying the Spec Logo user interface

Undoing and redoing user actions in Redux

Saving to LocalStorage via Redux middleware

Changing keyboard focus

Summary

Further learning

Adding Animation

Isolating components for animation

Animating with requestAnimationFrame

Summary

Exercises

Working with WebSockets

Designing a WebSocket interaction

Test-driving a WebSocket connection

Streaming events with redux-saga

Section 4: Acceptance Testing with BDD

Writing Your First Acceptance Test

Integrating Cucumber and Puppeteer into your code base

Writing your first Cucumber test

Using data tables to perform setup

Summary

Adding Features Guided by Acceptance Tests

Adding acceptance tests for a dialog box

Fixing acceptance tests by test-driving production code

Adding better wait support

Exercises

Summary

Understanding TDD in the Wider Testing Landscape

Test-driven development as a testing technique

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About the author

Daniel Irvine

Daniel Irvine is a UK-based software consultant. He helps businesses simplify their existing codebases and assists dev teams in improving the quality of their software using eXtreme programming (XP) practices. He has been coaching developers for many years and co-founded the Queer Code London meetup.

See other products by Daniel Irvine

FAQs

What is the delivery time and cost of print book?

Shipping Details

USA:

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
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Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.

Unfortunately, due to several restrictions, we are unable to ship to the following countries:

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Customs duty are charges levied on goods when they cross international borders. It is a tax that is imposed on imported goods. These duties are charged by special authorities and bodies created by local governments and are meant to protect local industries, economies, and businesses.

Do I have to pay customs charges for the print book order?

The orders shipped to the countries that are listed under EU27 will not bear custom charges. They are paid by Packt as part of the order.

List of EU27 countries: www.gov.uk/eu-eea:

A custom duty or localized taxes may be applicable on the shipment and would be charged by the recipient country outside of the EU27 which should be paid by the customer and these duties are not included in the shipping charges been charged on the order.

How do I know my custom duty charges?

The amount of duty payable varies greatly depending on the imported goods, the country of origin and several other factors like the total invoice amount or dimensions like weight, and other such criteria applicable in your country.

For example:

If you live in Mexico, and the declared value of your ordered items is over $ 50, for you to receive a package, you will have to pay additional import tax of 19% which will be $ 9.50 to the courier service.
Whereas if you live in Turkey, and the declared value of your ordered items is over € 22, for you to receive a package, you will have to pay additional import tax of 18% which will be € 3.96 to the courier service.

How can I cancel my order?

Cancellation Policy for Published Printed Books:

You can cancel any order within 1 hour of placing the order. Simply contact [email protected] with your order details or payment transaction id. If your order has already started the shipment process, we will do our best to stop it. However, if it is already on the way to you then when you receive it, you can contact us at [email protected] using the returns and refund process.

Please understand that Packt Publishing cannot provide refunds or cancel any order except for the cases described in our Return Policy (i.e. Packt Publishing agrees to replace your printed book because it arrives damaged or material defect in book), Packt Publishing will not accept returns.

What is your returns and refunds policy?

Return Policy:

We want you to be happy with your purchase from Packtpub.com. We will not hassle you with returning print books to us. If the print book you receive from us is incorrect, damaged, doesn't work or is unacceptably late, please contact Customer Relations Team on [email protected] with the order number and issue details as explained below:

If you ordered (eBook, Video or Print Book) incorrectly or accidentally, please contact Customer Relations Team on [email protected] within one hour of placing the order and we will replace/refund you the item cost.
Sadly, if your eBook or Video file is faulty or a fault occurs during the eBook or Video being made available to you, i.e. during download then you should contact Customer Relations Team within 14 days of purchase on [email protected] who will be able to resolve this issue for you.
You will have a choice of replacement or refund of the problem items.(damaged, defective or incorrect)
Once Customer Care Team confirms that you will be refunded, you should receive the refund within 10 to 12 working days.
If you are only requesting a refund of one book from a multiple order, then we will refund you the appropriate single item.
Where the items were shipped under a free shipping offer, there will be no shipping costs to refund.

On the off chance your printed book arrives damaged, with book material defect, contact our Customer Relation Team on [email protected] within 14 days of receipt of the book with appropriate evidence of damage and we will work with you to secure a replacement copy, if necessary. Please note that each printed book you order from us is individually made by Packt's professional book-printing partner which is on a print-on-demand basis.

What tax is charged?

Currently, no tax is charged on the purchase of any print book (subject to change based on the laws and regulations). A localized VAT fee is charged only to our European and UK customers on eBooks, Video and subscriptions that they buy. GST is charged to Indian customers for eBooks and video purchases.

What payment methods can I use?

You can pay with the following card types:

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Visa Credit
MasterCard
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What is the delivery time and cost of print books?

Shipping Details

USA:

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Unfortunately, due to several restrictions, we are unable to ship to the following countries:

Afghanistan
American Samoa
Belarus
Brunei Darussalam
Central African Republic
The Democratic Republic of Congo
Eritrea
Guinea-bissau
Iran
Lebanon
Libiya Arab Jamahriya
Somalia
Sudan
Russian Federation
Syrian Arab Republic
Ukraine
Venezuela

Mastering React Test-Driven Development: Build rock-solid, well-tested web apps with React, Redux and GraphQL

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