module Minitest::Assertions

def assert_have_state(object, state, options = {})
  state_machine_name = options.fetch(:on, :default)
  assert object.aasm(state_machine_name).current_state == state,
       "Expected that :#{object.aasm(state_machine_name).current_state} would be :#{state} (on :#{state_machine_name})"
end