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PhantomJS Cookbook

PhantomJS Cookbook

By : Friesel
4.2 (5)
Buy this Book
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PhantomJS Cookbook

PhantomJS Cookbook

4.2 (5)
By: Friesel
Buy this Book

Overview of this book

A task-based guide that provides solutions to real-world test automation problems. This book is intended for web development professionals who want to integrate PhantomJS into their development and testing workflows. If you are a web developer looking to run automated unit tests while you work, or perhaps you are a QA engineer looking for a fast test automation utility, then this book is perfect for you. Some prior knowledge of JavaScript would be helpful.
Table of Contents (10 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. Getting Started with PhantomJS
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1. Getting Started with PhantomJS
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Introduction
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Installing PhantomJS
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Launching the PhantomJS REPL
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Running a PhantomJS script
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Running a PhantomJS script with arguments
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Running PhantomJS with cookies
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Running PhantomJS with a disk cache
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Running PhantomJS with a JSON configuration file
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Debugging a PhantomJS script
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2. PhantomJS Core Modules
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2. PhantomJS Core Modules
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Introduction
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Inspecting the version at runtime
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Managing cookies with the phantom object
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Specifying a path for external scripts
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Setting up a global PhantomJS error handler
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Controlling the exit status of a PhantomJS script
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Inspecting command-line arguments
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Inspecting system environment variables
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Saving a file from a PhantomJS script
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Reading a file from PhantomJS
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Creating a custom module for PhantomJS
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Loading custom modules in PhantomJS
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3. Working with webpage Objects
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3. Working with webpage Objects
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Introduction
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Creating a web page instance in PhantomJS with the webpage module
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Opening a URL within PhantomJS
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Generating a POST request from PhantomJS
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Inspecting page content from a PhantomJS script
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Including external JavaScript on the page
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Recording debugger messages
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Simulating mouse clicks in PhantomJS
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Simulating keyboard input in PhantomJS
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Simulating scrolling in PhantomJS
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Simulating mouse hovers in PhantomJS
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Blocking CSS from downloading
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Causing images to fail randomly
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Submitting Ajax requests from PhantomJS
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Working with WebSockets in PhantomJS
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4. Unit Testing with PhantomJS
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4. Unit Testing with PhantomJS
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Introduction
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Running Jasmine unit tests with PhantomJS
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Using TerminalReporter for unit testing in PhantomJS
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Creating a Jasmine test runner for PhantomJS and every other browser
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Running Jasmine unit tests with Grunt
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Watching your tests during development with Grunt
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Running Jasmine unit tests with the Karma test runner
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Generating code coverage reports with Istanbul and the Karma test runner
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Running Jasmine unit tests with Karma and PhantomJS from WebStorm
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Running QUnit tests with PhantomJS
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Running Mocha unit tests with PhantomJS
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5. Functional and End-to-end Testing with PhantomJS
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5. Functional and End-to-end Testing with PhantomJS
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Introduction
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Running Selenium tests with PhantomJS and GhostDriver
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Using WebdriverJS as a Selenium client for PhantomJS
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Adding Poltergeist to a Capybara suite
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Taking screenshots during tests with Poltergeist
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Simulating precise mouse clicks with Poltergeist
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Installing CasperJS
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Interacting with web pages using CasperJS
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End-to-end testing with CasperJS
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Exporting test results from CasperJS in the XUnit format
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Detecting visual regressions using PhantomCSS
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6. Network Monitoring and Performance Analysis
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6. Network Monitoring and Performance Analysis
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Introduction
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Generating HAR files from PhantomJS
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Listing CSS properties
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Generating an appcache manifest
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Executing a simple performance analysis
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Executing a detailed performance analysis
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Executing a YSlow performance analysis with a custom ruleset
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Automating performance analysis with YSlow and PhantomJS
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7. Generating Images and Documents with PhantomJS
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7. Generating Images and Documents with PhantomJS
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Introduction
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Rendering images from PhantomJS
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Saving images as Base64 from PhantomJS
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Rendering and rasterizing SVGs from PhantomJS
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Generating clipped screenshots from PhantomJS
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Saving a web page from PhantomJS as a PDF
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Applying custom headers and footers to PDFs generated from PhantomJS
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Testing responsive designs with PhantomJS
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8. Continuous Integration with PhantomJS
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8. Continuous Integration with PhantomJS
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Introduction
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Setting up PhantomJS in a CI environment
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Generating JUnit reports
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Generating TAP reports
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Setting up a fully covered project in CI with PhantomJS
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Index
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Index

Introduction

One of the most popular uses of PhantomJS among front-end developers is as the primary testing environment for fast unit tests during development. Since PhantomJS is a headless web browser, it can sit invisibly on the command line waiting for tests to be triggered—totally unobtrusive until tests fail and it's time to raise the alarm.

In this chapter, we will learn about using PhantomJS as just such an environment for JavaScript unit tests. The chapter will focus on the Jasmine test framework, but will also introduce two other popular frameworks, QUnit and Mocha. The recipes in this chapter will look at a trivial string utilities library (string-utils.js under lib in the sample repository), and tests for that library will provide the subject matter that underlies each of the testing strategies discussed.

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PhantomJS Cookbook
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