require "minitest/autorun"
require "ingredient_management"

class TestIngredientManagement < Minitest::Test
  def database
      <<-END
3-5
10-14
16-20
12-18

1
5
8
11
17
32
END
    end
  def test_fresh_ingredient_ids
    im = IngredientManagement.for(database)
    assert_equal([1,5,8,11,17,32], im.ids)
    assert_equal([3..5, 10..14, 16..20, 12..18], im.ranges)
    assert_equal([5, 11, 17], im.fresh_ingredient_ids)
  end

  def test_all_fresh_ids_count
    im = IngredientManagement.for(database)
    assert_equal(14, im.all_fresh_ids_count)
  end

  def test_combine_two_ranges
    im = IngredientManagement.new([], [])
    assert_equal([1..6, 9..12], im.combine_two_ranges(1..6, 9..12))
    assert_equal([1..12], im.combine_two_ranges(1..9, 6..12))
    assert_equal([1..12], im.combine_two_ranges(1..9, 1..12))
  end

  def test_combine_ranges
    im = IngredientManagement.new([1..2, 3..4, 2..6, 9..12], [])
    assert_equal([1..6, 9..12], im.combine_ranges)
  end
end