trabajo-afectivo/spec/factories/cti/log.rb

FactoryBot.define do
  factory :'cti/log', aliases: %i[cti_log] do
    direction { %w[in out].sample }
    state     { %w[newCall answer hangup].sample }
    from      { '4930609854180' }
    to        { '4930609811111' }
    call_id   { (Cti::Log.pluck(:call_id).map(&:to_i).max || 0).next } # has SQL UNIQUE constraint
  end
end