mirror of
https://github.com/thoughtbot/capybara-webkit
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161 lines
5.6 KiB
Markdown
161 lines
5.6 KiB
Markdown
capybara-webkit
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===============
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[](https://travis-ci.org/thoughtbot/capybara-webkit)
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[](https://codeclimate.com/github/thoughtbot/capybara-webkit)
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A [capybara](https://github.com/jnicklas/capybara) driver that uses [WebKit](http://webkit.org) via [QtWebKit](http://trac.webkit.org/wiki/QtWebKit).
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Qt Dependency and Installation Issues
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-------------------------------------
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capybara-webkit depends on a WebKit implementation from Qt, a cross-platform
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development toolkit. You'll need to download the Qt libraries to build and
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install the gem. You can find instructions for downloading and installing QT on
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the
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[capybara-webkit wiki](https://github.com/thoughtbot/capybara-webkit/wiki/Installing-Qt-and-compiling-capybara-webkit).
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capybara-webkit requires Qt version 4.8 or greater.
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Windows Support
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---------------
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Currently 32-bit Windows will compile capybara-webkit. Support for Windows is
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provided by the open source community and Windows related issues should be
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posted to [Stack Overflow].
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[Stack Overflow]: http://stackoverflow.com/questions/tagged/capybara-webkit
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Reporting Issues
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----------------
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Without access to your application code we can't easily debug most crashes or
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generic failures, so we've included a debug version of the driver that prints a
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log of what happened during each test. Before filing a crash bug, please see
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[Reporting Crashes]. You're much more likely to get a fix if you follow those
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instructions.
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If you're having trouble compiling or installing, please check out the [wiki].
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If you don't have any luck there, please post to [Stack Overflow]. Please don't
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open a Github issue for a system-specific compiler issue.
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[Reporting Crashes]: https://github.com/thoughtbot/capybara-webkit/wiki/Reporting-Crashes
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[capybara-webkit wiki]: https://github.com/thoughtbot/capybara-webkit/wiki
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[Stack Overflow]: http://stackoverflow.com/questions/tagged/capybara-webkit
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CI
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--
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If you're like us, you'll be using capybara-webkit on CI.
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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, try out the [headless gem](https://github.com/leonid-shevtsov/headless), or use the xvfb-run utility as follows:
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```
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xvfb-run -a bundle exec spec
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```
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This automatically sets up a virtual X server on a free server number.
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Usage
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-----
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Add the capybara-webkit gem to your Gemfile:
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```ruby
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gem "capybara-webkit"
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```
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Set your Capybara Javascript driver to webkit:
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```ruby
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Capybara.javascript_driver = :webkit
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```
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In cucumber, tag scenarios with @javascript to run them using a headless WebKit browser.
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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.
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Take note of the transactional fixtures section of the [capybara README](https://github.com/jnicklas/capybara/blob/master/README.md).
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If you're using capybara-webkit with Sinatra, don't forget to set
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```ruby
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Capybara.app = MySinatraApp.new
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```
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Offline Application Cache
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-------------------------
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The offline application cache needs a directory to write to for the cached files. Capybara-webkit
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will look at if the working directory has a tmp directory and when it exists offline application
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cache will be enabled.
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Non-Standard Driver Methods
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---------------------------
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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`.
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**console_messages**: returns an array of messages printed using console.log
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```js
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// In Javascript:
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console.log("hello")
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```
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```ruby
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# In Ruby:
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page.driver.console_messages
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=> [{:source=>"http://example.com", :line_number=>1, :message=>"hello"}]
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```
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**error_messages**: returns an array of Javascript errors that occurred
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```ruby
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page.driver.error_messages
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=> [{:source=>"http://example.com", :line_number=>1, :message=>"SyntaxError: Parse error"}]
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```
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**cookies**: allows read-only access of cookies for the current session
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```ruby
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page.driver.cookies["alpha"]
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=> "abc"
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```
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**header**: set the given HTTP header for subsequent requests
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```ruby
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page.driver.header 'Referer', 'https://www.thoughtbot.com'
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```
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**block_unknown_urls**: By default, capybara-webkit will warn when a request is made to a URL other than 127.0.0.1 or localhost. This option will block such unknown URLs instead.
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```ruby
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page.driver.block_unknown_urls
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```
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**allow_url**: Allow requests to a URL. This will silence unknown URL warnings, or permit requests to a URL when `block_unknown_urls` is used. Allowed URLs are reset on `Driver#reset!`.
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```ruby
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page.driver.allow_url 'example.com/*.js'
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```
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Contributing
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------------
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See the CONTRIBUTING document.
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About
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-----
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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).
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Code for rendering the current webpage to a PNG is borrowed from Phantom.js' implementation.
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The names and logos for thoughtbot are trademarks of thoughtbot, inc.
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License
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-------
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capybara-webkit is Copyright (c) 2010-2014 thoughtbot, inc. It is free software, and may be redistributed under the terms specified in the LICENSE file.
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