class RuboCop::Cop::Minitest::AssertPathExists

def on_send(node)
  assert_file_exists(node) do |path, failure_message|
    failure_message = failure_message.first
    good_method = build_good_method(node, path, failure_message)
    message = format(MSG, good_method: good_method)
    add_offense(node, message: message) do |corrector|
      corrector.replace(node.loc.selector, 'assert_path_exists')
      corrector.replace(node.first_argument, path.source)
    end
  end
end