Something I'm working with at the moment. WIP

fast_spec_helper.rb

require 'active_attr'

RELATIVE_APP_PATH = File.expand_path("../../app", __FILE__)

def construct_require_path(middle_path, name)
  "#{RELATIVE_APP_PATH}/#{middle_path}/#{name}.rb"
end

def require_model(name)
  require construct_require_path('models', name)
end

def require_controller(name)
  require construct_require_path('controllers', name)
end

def required_constants(class_names)
  class_names.each do |class_name|
    unless Object.const_defined?(class_name)
      Object.const_set(class_name, Class.new)
    end
  end
end

I may try switch to Virtus (if it serves the same role) instead of Active Attribute down the line as it has more commiters and activity.