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---
layout: post
title: "Testing website with capybara-webkit and test/unit"
description: ""
category: Development
tags: [Headless browser, Testing]
---
{% include JB/setup %}
---
# Setup for headless browser tests with test/unit and capybara-webkit.
You need to install capybara and capybara-webkit as gem. Capybara-webkit requires two system libraries **qt4** and **xvfb**. To install execute:
`apt-get install qt4-dev-tools`<br>
`apt-get install xvfb`
as sudo. This works for Debian Squeeze. If **libqt4-dev** is not auto-installed you have to install it manually.
`apt-get install libqt4-dev`
# Install the gems:
`gem install capybara`<br>
`gem install capybara-webkit`
To run the headless browser you have to execute:
`Xvfb :1 -screen 0 1024x768x16 -nolisten inet6 &`<br>
`export 'DISPLAY=localhost:1.0'`
you can ignore warnings like:
*SELinux: Disabled on system, not enabling in X server<br>
[dix] Could not init font path element /usr/share/fonts/X11/cyrillic, removing from list!<br>
[dix] Could not init font path element /usr/share/fonts/X11/100dpi/:unscaled, removing from list!<br>
[dix] Could not init font path element /usr/share/fonts/X11/75dpi/:unscaled, removing from list!<br>
[dix] Could not init font path element /usr/share/fonts/X11/Type1, removing from list!<br>
[dix] Could not init font path element /usr/share/fonts/X11/100dpi, removing from list!<br>
[dix] Could not init font path element /usr/share/fonts/X11/75dpi, removing from list!<br>
[dix] Could not init font path element /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType, removing from list!<br>
libudev: udev_monitor_enable_receiving: bind failed: Operation not permitted<br>
config/udev: failed to bind the udev monitor<br>
[config] failed to initialise udev<br>*
You can integrate this command to your test. For the following example `export 'DISPLAY=localhost:1.0'` is already in ~/.bashrc.
# Example test:
`
require 'rubygems'
require 'test/unit'
require 'capybara/dsl'
require 'capybara-webkit'
Capybara.default_driver = :webkit
Capybara.default_wait_time = 5
Capybara.javascript_driver = :webkit
Capybara.run_server = false
class LazarWebTest < Test::Unit::TestCase
include Capybara::DSL
@@uri = "http://lazar.in-silico.ch"
def test_00_start
`Xvfb :1 -screen 0 1024x768x16 -nolisten inet6 &`
sleep 2
end
def test_01_visit
visit(@@uri)
puts page.source
end
def test_99_kill
`pidof Xvfb|xargs kill`
end
end
`
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