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  • Book Overview & Buying Learning Behavior-driven development with Javascript
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Learning Behavior-driven development with Javascript

Learning Behavior-driven development with Javascript

By : Enrique Javier A Rubio
4.9 (7)
Buy this Book
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Learning Behavior-driven development with Javascript

Learning Behavior-driven development with Javascript

4.9 (7)
By: Enrique Javier A Rubio
Buy this Book

Overview of this book

This book is ideal for any JavaScript developer who is interested in producing well-tested code. If you have no prior experience with testing, Node.js, or any other tool, do not worry, as they will be explained from scratch.
Table of Contents (12 chapters)
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Preface
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Preface
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What this book covers
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What you need for this book
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Who this book is for
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Conventions
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Reader feedback
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Customer support
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1
1. Welcome to BDD
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1. Welcome to BDD
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The test-first approach
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BDD versus TDD
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Exploring unit testing
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The structure of a test
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What is a good test?
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Summary
2
2. Automating Tests with Mocha, Chai, and Sinon
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2. Automating Tests with Mocha, Chai, and Sinon
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Node and NPM as development platforms
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Configuring your project with NPM
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Introducing Mocha
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More expressive assertions with Chai
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Red/Green/Refactor
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Test doubles with Sinon
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Summary
3
3. Writing BDD Features
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3. Writing BDD Features
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Introducing myCafé
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Writing features
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Testing asynchronous features
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Organizing our test code
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Finishing our feature
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Summary
4
4. Cucumber.js and Gherkin
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4. Cucumber.js and Gherkin
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Getting started with Gherkin and Cucumber.js
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Writing advanced scenarios
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Useful Cucumber.js features
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Cucumber.js or Mocha?
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Summary
5
5. Testing a REST Web API
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5. Testing a REST Web API
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The approach
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Testing the GET order feature
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Testing slave resources
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Summary
6
6. Testing a UI Using WebDriverJS
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6. Testing a UI Using WebDriverJS
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Our strategy for UI testing
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WebDriverJS
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Testing a rich Internet application
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Summary
7
7. The Page Object Pattern
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7. The Page Object Pattern
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Introducing the Page Object pattern
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A page object for a rich UI
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Summary
8
8. Testing in Several Browsers with Protractor and WebDriver
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8. Testing in Several Browsers with Protractor and WebDriver
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Testing in several browsers with WebDriver
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Welcome Protractor!
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Summary
9
9. Testing Against External Systems
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9. Testing Against External Systems
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Writing good test doubles
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Testing against external systems
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Summary
10
10. Final Thoughts
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10. Final Thoughts
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TDD versus BDD
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A roadmap to BDD
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Concluding the book
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Next steps?
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Summary
11
Index
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Index

A page object for a rich UI

It is now time to change our UI tests to use the Page Object pattern. The first thing is to create an initial page object that represents the browser. This will encapsulate all the logic about navigation and executing scripts. This way, we can, in the future, replace WebDriver with another tool, if it is necessary. Let's create such an object inside the test/support/ui.js file:

'use strict';

module.exports = function (port, driver) {
  function uriFor(uiName) {
    return 'http://localhost:' + port + '/test/' + uiName + '.html';
  }

  return {
    uriFor: uriFor,
    goTo: function (uiName) {
      return driver.get(uriFor(uiName));
    },
    executeScript: driver.executeScript.bind(driver),
    executeAsyncScript: driver.executeAsyncScript.bind(driver)
  };
};

The module is very simple; it just exposes a constructor for our main page object. The uriFor method is almost identical to the one we had before in test/index.js, and it will construct the right URI for...

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