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capybara-webkit/README.md
Numerico 0f85960214 Correct link for reporting crashes
* Link previously referenced Stack Overflow.
* We have a page for this in the wiki.
* Updates the link to reference the wiki.
2014-02-12 13:55:26 -05:00

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capybara-webkit
===============
[![Build Status](https://secure.travis-ci.org/thoughtbot/capybara-webkit.png?branch=master)](https://travis-ci.org/thoughtbot/capybara-webkit)
[![Code Climate](https://codeclimate.com/github/thoughtbot/capybara-webkit.png)](https://codeclimate.com/github/thoughtbot/capybara-webkit)
A [capybara](https://github.com/jnicklas/capybara) driver that uses [WebKit](http://webkit.org) via [QtWebKit](http://trac.webkit.org/wiki/QtWebKit).
Qt Dependency and Installation Issues
-------------------------------------
capybara-webkit depends on a WebKit implementation from Qt, a cross-platform
development toolkit. You'll need to download the Qt libraries to build and
install the gem. You can find instructions for downloading and installing QT on
the
[capybara-webkit wiki](https://github.com/thoughtbot/capybara-webkit/wiki/Installing-Qt-and-compiling-capybara-webkit).
capybara-webkit requires Qt version 4.8.
Windows Support
---------------
Currently 32-bit Windows will compile capybara-webkit. Support for Windows is
provided by the open source community and Windows related issues should be
posted to [Stack Overflow].
[Stack Overflow]: http://stackoverflow.com/questions/tagged/capybara-webkit
Reporting Issues
----------------
Without access to your application code we can't easily debug most crashes or
generic failures, so we've included a debug version of the driver that prints a
log of what happened during each test. Before filing a crash bug, please see
[Reporting Crashes]. You're much more likely to get a fix if you follow those
instructions.
If you're having trouble compiling or installing, please check out the [wiki].
If you don't have any luck there, please post to [Stack Overflow]. Please don't
open a Github issue for a system-specific compiler issue.
[Reporting Crashes]: https://github.com/thoughtbot/capybara-webkit/wiki/Reporting-Crashes
[capybara-webkit wiki]: https://github.com/thoughtbot/capybara-webkit/wiki
[Stack Overflow]: http://stackoverflow.com/questions/tagged/capybara-webkit
CI
--
If you're like us, you'll be using capybara-webkit on CI.
On Linux platforms, capybara-webkit requires an X server to run, although it doesn't create any visible windows. Xvfb works fine for this. You can setup Xvfb yourself and set a DISPLAY variable, or try out the [headless gem](https://github.com/leonid-shevtsov/headless).
Usage
-----
Add the capybara-webkit gem to your Gemfile:
```ruby
gem "capybara-webkit"
```
Set your Capybara Javascript driver to webkit:
```ruby
Capybara.javascript_driver = :webkit
```
In cucumber, tag scenarios with @javascript to run them using a headless WebKit browser.
In RSpec, use the `:js => true` flag. See the [capybara documentation](http://rubydoc.info/gems/capybara#Using_Capybara_with_RSpec) for more information about using capybara with RSpec.
Take note of the transactional fixtures section of the [capybara README](https://github.com/jnicklas/capybara/blob/master/README.md).
If you're using capybara-webkit with Sinatra, don't forget to set
```ruby
Capybara.app = MySinatraApp.new
```
Non-Standard Driver Methods
---------------------------
capybara-webkit supports a few methods that are not part of the standard capybara API. You can access these by calling `driver` on the capybara session. When using the DSL, that will look like `page.driver.method_name`.
**console_messages**: returns an array of messages printed using console.log
```js
// In Javascript:
console.log("hello")
```
```ruby
# In Ruby:
page.driver.console_messages
=> [{:source=>"http://example.com", :line_number=>1, :message=>"hello"}]
```
**error_messages**: returns an array of Javascript errors that occurred
```ruby
page.driver.error_messages
=> [{:source=>"http://example.com", :line_number=>1, :message=>"SyntaxError: Parse error"}]
```
**alert_messages, confirm_messages, prompt_messages**: returns arrays of Javascript dialog messages for each dialog type
```js
// In Javascript:
alert("HI");
confirm("Ok?");
prompt("Number?", "42");
```
```ruby
# In Ruby:
page.driver.alert_messages
=> ["Hi"]
page.driver.confirm_messages
=> ["Ok?"]
page.driver.prompt_messages
=> ["Number?"]
```
**resize_window**: change the viewport size to the given width and height
```ruby
page.driver.resize_window(500, 300)
page.driver.evaluate_script("window.innerWidth")
=> 500
```
**cookies**: allows read-only access of cookies for the current session
```ruby
page.driver.cookies["alpha"]
=> "abc"
```
**accept_js_confirms!**: accept any Javascript confirm that is triggered by the page's Javascript
```js
// In Javascript:
if (confirm("Ok?"))
console.log("Hi");
else
console.log("Bye");
```
```ruby
# In Ruby:
page.driver.accept_js_confirms!
visit "/"
page.driver.console_messages.first[:message]
=> "Hi"
```
**dismiss_js_confirms!**: dismiss any Javascript confirm that is triggered by the page's Javascript
```js
// In Javascript:
if (confirm("Ok?"))
console.log("Hi");
else
console.log("Bye");
```
```ruby
# In Ruby:
page.driver.dismiss_js_confirms!
visit "/"
page.driver.console_messages.first[:message]
=> "Bye"
```
**accept_js_prompts!**: accept any Javascript prompt that is triggered by the page's Javascript
```js
// In Javascript:
var a = prompt("Number?", "0")
console.log(a);
```
```ruby
# In Ruby:
page.driver.accept_js_prompts!
visit "/"
page.driver.console_messages.first[:message]
=> "0"
```
**dismiss_js_prompts!**: dismiss any Javascript prompt that is triggered by the page's Javascript
```js
// In Javascript:
var a = prompt("Number?", "0")
if (a != null)
console.log(a);
else
console.log("you said no"));
```
```ruby
# In Ruby:
page.driver.dismiss_js_prompts!
visit "/"
page.driver.console_messages.first[:message]
=> "you said no"
```
**js_prompt_input=(value)**: set the text to use if a Javascript prompt is encountered and accepted
```js
// In Javascript:
var a = prompt("Number?", "0")
console.log(a);
```
```ruby
# In Ruby:
page.driver.js_prompt_input = "42"
page.driver.accept_js_prompts!
visit "/"
page.driver.console_messages.first[:message]
=> "42"
```
**header**: set the given HTTP header for subsequent requests
```ruby
page.driver.header 'Referer', 'https://www.thoughtbot.com'
```
Contributing
------------
See the CONTRIBUTING document.
About
-----
The capybara WebKit driver is maintained by Joe Ferris and Matt Horan. It was written by [thoughtbot, inc](http://thoughtbot.com/community) with the help of numerous [contributions from the open source community](https://github.com/thoughtbot/capybara-webkit/contributors).
Code for rendering the current webpage to a PNG is borrowed from Phantom.js' implementation.
![thoughtbot](http://thoughtbot.com/images/tm/logo.png)
The names and logos for thoughtbot are trademarks of thoughtbot, inc.
License
-------
capybara-webkit is Copyright (c) 2010-2013 thoughtbot, inc. It is free software, and may be redistributed under the terms specified in the LICENSE file.