spec/factories/theorem_factory.rb

FactoryGirl.define do
  factory :theorem do |theorem|
    name { generate :sentence_name }
    text { Faker::Lorem.sentence }
    proof_status { create :proof_status_open }
    state { 'not_started_yet' }

    theorem.after(:build) do |theorem|
      if !theorem.ontology
        parent_onto = create :distributed_ontology, :with_versioned_children
        theorem.ontology = parent_onto.children.first
      end

    end
  end
end