test_rpn-lesson24.rb

require 'test/unit'
require 'rpn'

class TestRPN < Test::Unit::TestCase
  def setup
    @rpn = RPN.new
  end

  def test_1_plus_1
    assert_equal(2, @rpn.calc('1 1 +'))
  end

  def test_2_plus_2
    assert_equal(4, @rpn.calc('2 2 +'))
  end

  def test_3_minus_2
    assert_equal(1, @rpn.calc('3 2 -'))
  end

  def test_3_kakeru_2
    assert_equal(6, @rpn.calc('3 2 *'))
  end

  def test_6_waru_2
    assert_equal(3, @rpn.calc('6 2 /'))
  end
end