class RuboCop::Cop::RSpec::Rails::MinitestAssertions

def on_send(node)
  minitest_assertion(node) do |expected, actual, failure_message|
    prefer = replacement(node, expected, actual,
                         failure_message.first)
    add_offense(node, message: message(prefer)) do |corrector|
      corrector.replace(node, prefer)
    end
  end
end