# File test/test_parse_tree.rb, line 2541
  def test_process_string
    actual   = @processor.process '1 + nil'
    expected = s(:call, s(:lit, 1), :+, s(:arglist, s(:nil)))

    assert_equal expected, actual

    actual   = @processor.process 'puts 42'
    expected = s(:call, nil, :puts, s(:arglist, s(:lit, 42)))

    assert_equal expected, actual
  end