module RuboCop::Cop::ConfigurableNaming

def check_name(node, name, name_range)
  return if operator?(name)
  if valid_name?(name)
    correct_style_detected
  else
    add_offense(node, name_range, message(style)) do
      opposite_style_detected
    end
  end
end

def valid_name?(name)
  pattern = (style == :snake_case ? SNAKE_CASE : CAMEL_CASE)
  name.match(pattern)
end