require "minitest/autorun"
require "intcode"

class TestIntcode < Minitest::Test
  def test_addition
    i = Intcode.for("1,0,0,3,99")
    i.run!
    assert_equal(1, i.peek(0))
    assert_equal(0, i.peek(1))
    assert_equal(0, i.peek(2))
    assert_equal(2, i.peek(3))
    assert_equal(99, i.peek(4))
  end

  def test_multiplication
    i = Intcode.for("1,9,10,3,2,3,11,0,99,30,40,50")
    i.run!
    assert_equal(3500, i.peek(0))
    assert_equal(70, i.peek(3))
  end
end