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Dees Ian - Effective testing with RSpec 3: build Ruby apps with confidence

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Dees Ian Effective testing with RSpec 3: build Ruby apps with confidence
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Effective testing with RSpec 3: build Ruby apps with confidence: summary, description and annotation

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RSpec has been downloaded more than 100 million times and has inspired countless test frameworks in other languages. Use this influential Ruby testing framework to iteratively develop a project with the confidence that comes from well-tested code. This book guides you through creating a Ruby project with RSpec 3, and explores the individual components in detail.--Back cover;Getting started. Getting started with RSpec -- From writing specs to running them -- The RSpec way -- Building an app with RSpec 3. Starting on the outside: acceptance specs -- Testing in isolation: unit specs -- Getting real: integration specs -- RSpec core. Structuring code examples -- Slicing and dicing specs with metadata -- Configuring RSpec -- RSpec expectations. Exploring RSpec expectations -- Matchers included in RSpec expectations -- Creating custom matchers -- RSpec mocks. Understanding test doubles -- Customizing test doubles -- Using test doubles effectively -- RSpec and the wider Ruby ecosystem -- Using RSpec with Rails -- Matcher cheat sheet.

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Effective Testing with RSpec 3
Build Ruby Apps with Confidence
by Myron Marston, Ian Dees
Version: P1.0 (August 2017)

Copyright 2017 The Pragmatic Programmers, LLC. This book is licensed to the individual who purchased it. We don't copy-protect it because that would limit your ability to use it for your own purposes. Please don't break this trustyou can use this across all of your devices but please do not share this copy with other members of your team, with friends, or via file sharing services. Thanks.

Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. Where those designations appear in this book, and The Pragmatic Programmers, LLC was aware of a trademark claim, the designations have been printed in initial capital letters or in all capitals. The Pragmatic Starter Kit, The Pragmatic Programmer, Pragmatic Programming, Pragmatic Bookshelf and the linking g device are trademarks of The Pragmatic Programmers, LLC.

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Table of Contents
Copyright 2017, The Pragmatic Bookshelf.
Early praise for Effective Testing with RSpec 3

Ruby embraces the old Lisp idea that you should build up a language to address your problem, and RSpec carries this approach into the world of testing. But RSpec is a big toolbox, and in order to harness its full power you need a guide. This is that guide: the bridge you need to take you from writing tests, to expressing your design requirements in code.

Avdi Grimm
Author of Confident Ruby and Exceptional Ruby and Head Chef, RubyTapas

Effective Testing with RSpec 3 does a great job of explaining both the main features of RSpec as well as its lesser known, powerful, and often overlooked features. Its an essential resource for Rubyists looking to learn RSpec, or for those who use it every day. Ive already started using it regularly as a resource.

Noel Rappin
Author of Rails 4 Test Prescriptions and Director of Development, Table XI

Myron and Ian have written the essential missing manual for modern RSpec, connecting all the latest best practices for TDD and BDD. If you were having trouble mastering modern testing with RSpec, this book will sort you out.

Sam Joseph
Co-instructor on the BerkeleyX Agile Development using Ruby on Rails MOOC and co-founder, AgileVentures Charity

Myron has been the driving force behind RSpec development for years. He is an expert on testing practices and getting the most out of the RSpec suite. His care and attention to detail are impeccable, and it shows in both the codebase and this book.

Xavier Shay
RSpec core team member and Payments Engineering Lead, Square

Having worked with Myron for many years on the RSpec core team, Im very pleased to see Effective Testing with RSpec 3 . This book contains everything you need to learn not only how RSpec works, but how to test effectively with the framework. If youre working with RSpec on a daily basis and looking to get better at working with the framework, I could not recommend this book more heartily.

Sam Phippen
RSpec core team member and engineer, Digital Ocean

The exercises are illustrative and challenging. The final chapter on test doubles really synthesizes the best way to use these tools. Youll write far more readable and robust specs after reading this book, especially when interfacing with the shifting sands of third-party APIs.

Nigel Lowry
Company Director and Principal Consultant, Lemmata

Effective Testing with RSpec 3 is well worth a read: it is much more than a technical reference and will make you a better developer by teaching you how to write more expressive, robust, and maintainable tests.

Alessandro Bahgat
Professional software developer

Foreword

Making software is hard, and its difficult to know how to get better at it. Theres always so much stuff to learn, and so many competing opinions about the right way to do things. And yet somehow here you are, about to read another book full of ideas youre apparently supposed to remember.

Well, the truth is that you can make software just fine without writing tests, and you can write tests just fine without using RSpec, so youll be okay if you stop reading now. But if you decide to keep going, youll discover something interesting: writing tests with RSpec is a great way to get really good at making software.

Thats because RSpec isnt just a testing framework. Its a tool for learning how to think critically, patiently, and systematically about the design of your code, and how to make software in a methodical way so you have confidence that its well organized, clear, and correct.

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