Culerity and Headless Full Stack Integration Testing

Patrick Hüsler, huesler informatik Full Stack Integration Testing

Control the Browser 2

Emulate a browser 3

The Lay of The Land 4

Thank you Martin Kleppmann http://www.slideshare.net/martinkleppmann/crossbrowser-testing-in-the-real-world 6

Headless 7

HTML Unit 8

<< HtmlUnit is a "GUI-Less browser for Java programs". It models HTML documents and provides an API that allows you to invoke pages, ﬁll out forms, click links, etc... just like you do in your "normal" browser. >> http://htmlunit.sourceforge.net/ 9

Celerity 10

<< A ruby wrapper around HTML Unit written in JRuby >> 11

Concerns 12

SLOW 13

Really SLOW!!! 14

Sometimes Brittle 15

Focus on the most important features 16

Rails 17

Status Quo Ante 18

Webrat 19

Selenium et. al 20

Headless 22

Culerity http://github.com/langalex/culerity 23

Steam http://github.com/svenfuchs/steam 24

Status Quo 25

Capybara http://github.com/jnicklas/capybara 26

<< Capybara aims to simplify the process of integration testing Rack applications, such as Rails, Sinatra or Merb. It is inspired by and aims to replace Webrat as a DSL for interacting with a webapplication. It is agnostic about the driver running your tests and currently comes bundled with rack-test, Culerity, Celerity and Selenium support built in. >> http://github.com/jnicklas/capybara 27

Capybara Drivers • rack-test • Celerity • Selenium • (env-js) 28

Ideas/Approaches 29

Steam Steam is a headless integration testing tool driving HtmlUnit to enable testing JavaScript-driven web sites. In that it is similar to Culerity which drives Celerity (which also drives HtmlUnit). http://github.com/svenfuchs/steam 30

envjs http://www.envjs.com/ http://github.com/jeresig/env-js 31

ENVJS IS A SIMULATED BROWSER ENVIRONMENT WRITTEN IN JAVASCRIPT. IT WAS ORIGINALLY DEVELOPED BY JOHN RESIG AND DISCUSSED IN HIS BLOG HERE. ENVJS IS NOW SUPPORTED BY A COMMUNITY OF DEVELOPERS WHO ALL USE ENVJS AS PART OF THEIR OWN OPEN SOURCE PROJECTS. http://www.envjs.com/ 32

Johnson Johnson wraps JavaScript in a loving Ruby embrace. It embeds the Mozilla SpiderMonkey JavaScript runtime as a C extension. http://github.com/jbarnette/johnson 33

Johnson require "johnson" Johnson.evaluate("4 + 4") # => 8 Johnson.evaluate("4 + foo", :foo => 4) # => 8 34

Johnson Presentation 2008 http://rubyconf2008.confreaks.com/how-i-learned-to- love-javascript.html 35

Harmony http://github.com/mynyml/harmony page.execute_js("1+1") #=> 2 page.execute_js("document.title") #=> "Foo" 36

Harmony • Wrapper around • Johnson • Envjs 37

HolyGrail: Rails plugin for Harmony http://github.com/mynyml/holygrail 38

The ruby tracer Embed the Google V8 Javascript Interpreter into Ruby http://github.com/cowboyd/therubyracer 39

Lyndon Lyndon wraps JavaScript in a loving MacRuby embrace. http://github.com/defunkt/lyndon 40

Headless Squirrel A JavaScript test runner to run tests from the comfort of your terminal. http://github.com/Fingertips/headless-squirrel 41

rdom tweet from the author, sven fuchs: “maybe you want to mention steam and/or rdom http://bit.ly/db4vxL, browser/env in ruby w/ nokogiri + johnson, not complete yet.” 42

Thank You • patrick.huesler@googlemail.com • @phuesler • http://github.com/phuesler • http://www.huesler-informatik.ch/blog 43

Questions? 44

Thank You • patrick.huesler@googlemail.com • @phuesler • http://github.com/phuesler • http://www.huesler-informatik.ch/blog 45

Culerity and Headless Full Stack Integration Testing

by Patrick Huesler on Jun 03, 2010

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