undefined method `fixtures' for TarantulaTest:Class

[AlexEscalante]

I am trying to setup Tarantula in a Rails 3.1.3 project. like this:

group :development, :test do
 ...
  gem 'tarantula', :require => 'tarantula-rails3'
end

Initially I found an error where the Tarantula rake file would not work due to a missing:

require 'rake/testtask'

... so I copied the contents of the rake file and made my own local rake task adding the require but now I get this error on the generated test, so I better ask!

tarantula_test.rb:9:in `<class:TarantulaTest>': undefined method `fixtures' for TarantulaTest:Class (NoMethodError)

Thanks,
Alex Escalante