Testing your FactoryBot factories and defined traits

factories_spec.rb

require 'rails_helper'

RSpec.describe 'Factories', :vcr do
  FactoryBot.factories.each do |factory|
    describe "The :#{factory.name} factory" do
      describe 'base factory' do
        it 'is valid' do
          expect(build(factory.name.to_sym)).to be_valid
        end
      end

      factory.defined_traits.each do |trait|
        context "with :#{trait.name} trait" do
          it 'is valid' do
            expect(build(factory.name.to_sym, trait.name.to_sym)).to be_valid
          end
        end
      end
    end
  end
end