Effective Testing with RSpec 3: Build Ruby Apps with Confidence

ISBN-10: 1680503464
ISBN-13: 9781680503463
Category: Computers
Pages: 491
Language: English
Published: 2017-08-30
Publisher: Pragmatic Bookshelf
Authors: Ian Dees, Myron Marston

Description

"Our tests are broken again!" "Why does the suite take so long to run?" "What value are we getting from these tests anyway?" Solve your testing problems by building and maintaining quality software with RSpec - the popular BDD-flavored Ruby testing framework. This definitive guide from RSpec's lead developer shows you how to use RSpec to drive more maintainable designs, specify and document expected behavior, and prevent regressions during refactoring. Build a project using RSpec to design, describe, and test the behavior of your code. Whether you're new to automated tests or have been using them for years, this book will help you write more effective tests. 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, and explores the individual components in detail. Start by learning the basics of installing and using RSpec. Then build a real-world JSON API, using RSpec throughout the process to drive a BDD-style outside-in workflow. Apply an effective test strategy to write fast, robust tests that support evolutionary design through refactoring. The rest of the book provides the definitive guide to RSpec's components. Use rspec-core's metadata to slice and dice your spec suite. Dig into rspec-expectations' matchers: compose them in flexible ways, specify expected outcomes with precision, and diagnose problems quickly with the help of good failure messages. Write fast, isolated tests with rspec-mocks' test doubles while pushing your code toward simpler interfaces. The authors, with a combined 20 years of automated testing experience, share testing wisdom that will lead to a fun, productive testing experience. What You Need: To follow along with the book, you'll need Ruby 2.2+. The book will guide you through installing RSpec 3 and setting up a new project to use it.

Get the book

Similar books

Family History Digital Libraries
By William Sims Bainbridge
One named Sara and Timberlake had 11 male workers, 1 female worker, and 4 children workers, so it might have employed the Minor family.
Foundation Dreamweaver MX
By Craig Grannell, Jerome Turner, Matt Stephens
So here's what we need to do to arrive at our layout: s Create the main table to hold all the page elements. s Deal with the navigation area which is ...
Cisco CCNA Certification, 2 Volume Set: Exam 200-301
By Todd Lammle
This inclusive, two-book set provides what you need to know to succeed on the new CCNA exam. The set includes Understanding Cisco Networking Technologies: Volume 1 and the CCNA Certification Study Guide: Volume 2.
CompTIA Network+ Study Guide: Exam N10-006
By Todd Lammle
... you can use: –a –A –c –n –r –R –S –s All nbtstat switches are case sensitive. Generally speaking, lowercase switches deal with NetBIOS names of hosts, ...
CompTIA Network+ Study Guide with Online Labs: N10-007 Exam
By Todd Lammle, Jon Buhagiar
... you can use: –a –A –c –n –r –R –S –s All nbtstat switches are case sensitive. Generally speaking, lowercase switches deal with NetBIOS names of hosts, ...
CCNA: Cisco Certified Network Associate FastPass
By Todd Lammle
S The S reference point defines the point between the customer router and an ... with the letter E deal with using ISDN on the existing telephone network.
Stranger in the Chat Room
By Todd Hafer, Jedd Hafer
A sequel to In the Chat Room With God finds a group of teens contacted by a mysterious and increasingly malevolent character who claims to know about their encounters with the Almighty and challenges their beliefs. Original.
Error Correction Coding: Mathematical Methods and Algorithms
By Todd K. Moon
M M−1∑ k=0 −∞ ∞ k=0 The average energy per signal E s ∫ can be related to the ... we will deal primarily with additive white Gaussian noise (AWGN), ...
Security+ Training Guide
By Todd King
... to deal with most , but unfortunately not all , of these potential threats . ... The S / MIME standard implements encryption for message content using ...
CCDA: Cisco Certified Design Associate Study Guide: Exam 640-861
By Todd Lammle, Andy Barkl
S reference point The S reference point defines the reference point between ... with the letter E deal with using ISDN on the existing telephone network.