class RuboCop::Cop::RSpec::ExpectChange

def on_send(node)
  return unless style == :block
  expect_change_with_arguments(node) do |receiver, message|
    msg = format(MSG_CALL, obj: receiver.source, attr: message)
    add_offense(node, message: msg) do |corrector|
      replacement = "change { #{receiver.source}.#{message} }"
      corrector.replace(node, replacement)
    end
  end
end