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Title
Building your own test framework : a practical guide to writing better automated tests / Daniel Irvine ; foreword by Maaret Pyhäjärvi.
Edition
[First edition].
ISBN
9781484292471 (electronic bk.)
1484292472 (electronic bk.)
9781484292464
1484292464
Published
New York, NY : Apress, [2023]
Language
English
Description
1 online resource (280 pages) : illustrations
Item Number
10.1007/978-1-4842-9247-1 doi
Call Number
QA76.76.T48
Dewey Decimal Classification
005.1/4
Summary
Learn to write better automated tests that will dramatically increase your productivity and have fun while doing so. This book is a build-your-own adventure designed for individual reading and for collaborative workshops. You will build an xUnit automated test framework using JavaScript: initially a clone of Jest, but adding a couple of neat features borrowed from RSpec, the genre-defining tool for behavior-driven development (BDD). Along the way, you will explore the philosophy behind automated testing best practices. The automated test runner is one of the most important innovations within software engineering. But for many programmers, automated testing remains a mystery, and knowing how to write good tests is akin to sorcery. As the chapters of this book unfold, you will see how the humble test runner is an elegant and simple piece of software. Each chapter picks a single feature to build, like the "it" function or the "beforeEach" block. It picks apart the theory of why the feature needs to exist, and how to use it effectively in your own test suites. Every chapter ends with a set of ideas for extension points should you wish to explore further, alone or in groups. The book culminates in an implementation of test doubles and mocks—one of the most difficult and misunderstood concepts within automated testing. By the end of the book, you will have gained a solid understanding of automated testing principles that you can immediately apply to your work projects.
Note
Includes index.
Access Note
Access limited to authorized users.
Chapter 1: Creating an NPM Package of My Very Own
Chapter 2: Building it to Define a Test
Chapter 3: Grouping Tests with Describe
Chapter 4: Promoting Conciseness with BeforeEach and AfterEach
Chapter 5: Improving Legibility with Expect
Chapter 6: Formatting Expectation Errors
Chapter 7. Automatically Discovering Test Files
Chapter 8: Focusing on Tests with It.Only and Describe.Only
Chapter 9: Supporting Asynchronous Tests
Chapter 10: Reporting
Chapter 11: Sharing Behavior with it.BehavesLike
Chapter 12: Tagging Tests
Chapter 13 : Skipping Tests
Chapter 14 : Randomizing Tests
Chapter 15. Understanding test doubles
Chapter 16. Module Mocks.
