Use feature, background, and scenario blocks to write acceptance tests in test/unit

acceptance_helper.rb

# Use feature, background, and scenario blocks to write acceptance tests in test/unit
# which are really just integration tests. include capybara or webrat or something and voila.

# test/acceptance_helper.rb
require 'test_helper'

module ActionDispatch
  class AcceptanceTest < ActionDispatch::IntegrationTest
    class << self
      alias :background :setup
      alias :scenario :test
    end
  end
end

class Object
  def feature(name, &block)
    klass = eval("class #{name.camelcase}AcceptanceTest < ActionDispatch::AcceptanceTest; self; end")
    klass.instance_eval(&block)
  end
end

checkout_feature.rb

# Now you can do something like this:

require 'acceptance_helper'

feature "Checkout" do
  background do
    create_user :name => "joe"
    login_as "joe"
  end

  scenario "should be able to complete a standard checkout" do
    visit "/checkout"
    click("checkout")
    # ...
    page.should have_css(".quote", :text => "Thank you")
  end
end