thoughtbot/capybara-webkit — pull request #240 by marcisme (2012-01-15 23:58:53+00:00)
Title: add imagemagick dependency to contributing guide

Several tests in driver_rendering_spec.rb require the identify command
that is part of Imagemagick. Without it they fail with output similar to
the following.

MiniMagick::Error:
Command ("identify -ping
/var/folders/y3/vfvjgwm91f1fmt2syh21czx40000gn/T/mini_magick20120115-49056-pwh5nl-0.png")
failed: {:output=>"sh: identify: command not found\n",
:status_code=>127}