Enable conditional factory bot monitoring in RSpec

spec_helper.rb

if ENV['MONITOR_FACTORIES']
  factory_results = {
    time_spent_in_factories: 0,
    payloads: [],
  }

  config.before do
    ActiveSupport::Notifications.subscribe("factory_bot.run_factory") do |_name, start, finish, _id, payload|
      took = finish - start
      factory_results[:payloads] << payload
      factory_results[:time_spent_in_factories] += took
      puts "FactoryBot: #{payload[:strategy]}(:#{payload[:name]}) - took #{took}s"
    end
  end

  config.after do
    factory_results[:factories_run] = factory_results.delete(:payloads).map{ [_1[:strategy], _1[:name]] }.tally
    pp factory_results
  end
end