Evan Hahn

JavaScript Testing with Jasmine (eBook, ePUB)

JavaScript Behavior-Driven Development

• Format: ePub

Produktbeschreibung

Get a concise introduction to Jasmine, the popular behavior-driven testing framework for JavaScript. This practical guide shows you how to write unit tests with Jasmine that automatically check for bugs in your application. If you have JavaScript experiencewith knowledge of some advanced featuresyoull learn how to write specifications for individual components, and then use those specs to test the code you write.Throughout the book, author Evan Hahn focuses primarily on methods for testing browser-based JavaScript applications, but youll also discover how to use Jasmine with CoffeeScript, Node.js, Ruby on Rails, and Ruby without Rails. You wont find a more in-depth source for Jasmine anywhere.Get an overview of both test-driven and behavior-driven developmentWrite useful specs by determining what you need to testand what you dontTest the behavior of new and existing code against the specs you createApply Jasmine matchers and discover how to build your ownOrganize code suites into groups and subgroups as your code becomes more complexUse a Jasmine spy in place of a function or an objectand learn why its valuable

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Produktdetails

• Verlag: O'Reilly Media
• Seitenzahl: 52
• Erscheinungstermin: 25. März 2013
• Englisch
• ISBN-13: 9781449356750
• Artikelnr.: 52841477

Autorenporträt

Evan is a JavaScript developer currently enrolled at University of Michigan. He started coding in BASIC when he was 6 years old. In high school, he was the webmaster of his high school's online newspaper, where he learned how to make more of a real website (PHP, mySQL, JavaScript, jQuery). He most recently worked at UniversityNow, an educational startup in Palo Alto.

Inhaltsangabe

Preface
Who Should Read This Book
Conventions Used in This Book
Using Code Examples
Safari® Books Online
How to Contact Us
Acknowledgments
Chapter 1: Intro to Testing
1.1 What Is Software Testing?
1.2 Why Is It Useful?
1.3 Test-Driven Development
1.4 Behavior-Driven Development
Chapter 2: Jasmine
2.1 What Is Jasmine?
2.2 Getting Set Up with Jasmine
2.3 Testing Existing Code with describe, it, and expect
2.4 Matchers
2.5 Writing the Tests First with Test-Driven Development
Chapter 3: Writing Good Tests
3.1 Cardinal Rule: When in Doubt, Test
3.2 Test Components
3.3 Black-Box Testing
Chapter 4: Matchers in Depth
4.1 Equality: toEqual
4.2 Identity: toBe
4.3 Yes or No? toBeTruthy, toBeFalsy
4.4 Negate Other Matchers with not
4.5 Check If an Element Is Present with toContain
4.6 Is It Defined? toBeDefined, toBeUndefined
4.7 Nullness: toBeNull
4.8 Is It NaN? toBeNaN
4.9 Comparators: toBeGreaterThan, toBeLessThan
4.10 Nearness: toBeCloseTo
4.11 Using toMatch with Regular Expressions
4.12 Checking If a Function Throws an Error with toThrow
4.13 Custom Matchers
Chapter 5: More Jasmine Features
5.1 Before and After
5.2 Nested Suites
5.3 Skipping Specs and Suites
5.4 Matching Class Names
Chapter 6: Spies
6.1 The Basics: Spying on a Function
6.2 Calling Through: Making Your Spy Even Smarter
6.3 Making Sure a Spy Returns a Specific Value
6.4 Replacing a Function with a Completely Different Spy
6.5 Creating a New Spy Function
6.6 Creating a New Spy Object
Chapter 7: Using Jasmine with Other Tools
7.1 Jasmine and CoffeeScript
7.2 Jasmine and Node.js
7.3 Jasmine and Ruby on Rails
7.4 Jasmine with Non-Rails Ruby
7.5 More Tools
Chapter 8: Reference
8.1 Jasmine on the Web
8.2 The Basic Structure of a Suite
8.3 Matchers Reference
8.4 List of Falsy Values
8.5 Reserved Words in Jasmine
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