factory_girl_rspec_integration.rb

new.rb

describe Message do
  create :account, :name => "My Account" do
    create :user
    create :project

    with :project, :user => :author do
      create :message
    end
  end

  # examples
end

old.rb

describe Message do
  let!(:account) { Factory(:account, :name => "My Account") }
  let!(:user) { Factory(:user, :account => account) }
  let!(:project) { Factory(:project, :account => account) }
  let!(:message) { Factory(:message, :account => account,
                                     :project => project,
                                     :author  => user) }

  # examples
end