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Build Your Own Test Framework: A Practical Guide to Writing Better Automated Tes
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eBay item number:126475872003
Item specifics
- Condition
- Book Title
- Apress
- ISBN
- 9781484292464
- Subject Area
- Computers, Mathematics
- Publication Name
- Build Your Own Test Framework : Write Better Automated Tests, Implement Test Doubles and Mocks, and Increase Productivity
- Item Length
- 9.3 in
- Publisher
- Apress L. P.
- Subject
- Software Development & Engineering / General, General
- Publication Year
- 2023
- Type
- Textbook
- Format
- Trade Paperback
- Language
- English
- Item Width
- 6.1 in
- Item Weight
- 16.1 Oz
- Number of Pages
- Xxiv, 269 Pages
About this product
Product Information
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. What You'll Learn Build an xUnit automated test framework See how an automated test runner works Understand the best practices for automated unit testing Effectively use test doubles and mocks Who This Book Is For Software developers with JavaScript experience who are seeking to master the art of automated testing.
Product Identifiers
Publisher
Apress L. P.
ISBN-10
1484292464
ISBN-13
9781484292464
eBay Product ID (ePID)
2329673443
Product Key Features
Publication Name
Build Your Own Test Framework : Write Better Automated Tests, Implement Test Doubles and Mocks, and Increase Productivity
Format
Trade Paperback
Language
English
Subject
Software Development & Engineering / General, General
Publication Year
2023
Type
Textbook
Subject Area
Computers, Mathematics
Number of Pages
Xxiv, 269 Pages
Dimensions
Item Length
9.3 in
Item Width
6.1 in
Item Weight
16.1 Oz
Additional Product Features
Number of Volumes
1 Vol.
Lc Classification Number
Qa76.76.T48
Table of Content
Part 1: Building the Core of a Test Framework In this part we build a barebones implementation of a test runner. Chapter 1: Creating an NPM Package of My Very Own, You will create a new NPM package for concise-test, including an entry-point for the test runner. Chapter 2: Building it to Define a Test we'll implement the it function for defining tests, and start printing out some useful test run information on screen. Chapter 3: Grouping Tests with Describe, we'll add support for grouping tests with the describe function, and we'll continue to build out test reporting on screen. Chapter 4: Promoting Conciseness with BeforeEach and AfterEach We continue our quest for concise testing facilities with the addition of beforeEach and afterEach functions. Chapter 5: Improving Legibility with Expect, We finish off the core of our API by building an abstraction over throw new Error. Part 2: Constructing a Usable Framework In this part we add features that you'll use on a daily basis. Chapter 6: Formatting Expectation Errors We write a formatter for stack traces to help pinpoint failures quickly. Chapter 7. Automatically Discovering Test Files We'll add test file discovery to our test runner, and add support for running a single file through a command line argument. Chapter 8: Focusing on Tests with It.Only and Describe.Only, We split out runner into two phases: a discovery phase and an execution phase. In between them, we insert a filter phase to support running only a subset of phases. Chapter 9: Supporting Asynchronous Tests, We add the ability to wait on tests that return Promise objects, and timing out tests with it.timesOutAfter. Chapter 10: Reporting we use a pub-sub model to build a plug-in system for reporters. Part 3: Extending for Power Users In this part we continue to add advanced features. Chapter 11: Sharing Behavior with it.BehavesLike, We borrow an important feature from Ruby: inheritance for describe blocks, which gives us a flexible mechanism for removing duplication between test groups. Chapter 12: Tagging Tests We create a mechanism for running a group of tests based on their tag. Chapter 13 : Skipping Tests we introduce a number of ways to skip tests, including tests without bodies, and it.skip plus describe.skip functions. Chapter 14 : Randomizing Tests We add a runtime flag for randomizing the order of tests, which is a useful technique for catching invisible dependencies between tests. Part 4: Test Doubles and Mocks Chapter 15. Understanding test doubles we create a function that can be used as a test spy and stub. Chapter 16. Module Mocks We create a system for mocking out entire modules, which is a useful technique when creating component doubles when testing React.
Copyright Date
2023
Dewey Decimal
005.14
Dewey Edition
23
Illustrated
Yes
Item description from the seller
Seller assumes all responsibility for this listing.
eBay item number:126475872003
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