class RuboCop::Cop::Rails::UnknownEnv

def on_send(node)
  unknown_environment_predicate?(node) do |name|
    add_offense(node.loc.selector, message: message(name))
  end
  unknown_environment_equal?(node) do |str_node|
    name = str_node.value
    add_offense(str_node, message: message(name))
  end
end