Generalized specs to test all factories and traits

factories_spec.rb

require 'rails_helper'

FactoryGirl.factories.each do |factory|
  describe "The '#{factory.name}' factory" do
    it 'is valid' do
      build(factory.name).should be_valid
    end
    factory.definition.defined_traits.each do |trait|
      describe "The '#{trait.name}' trait" do
        it 'is valid' do
          build(factory.name, trait.name).should be_valid
        end
      end
    end
  end
end