require 'test/unit'
require 'util/array_alternatives'

class UTestArrayAlternatives < Test::Unit::TestCase
  def test_01_normal_use
    first, second, third = [1], [2], [3, 4]
    a = first / second / third
    alts = a.assemble_alternatives
    assert_kind_of(Array, alts)
    assert_equal(3, alts.length)
    assert_equal(first,  alts[0])
    assert_equal(second, alts[1])
    assert_equal(third,  alts[2])
  end

  def test_02_without_any_alternatives
    a = [1]
    alts = a.assemble_alternatives
    assert_kind_of(Array, alts)
    assert_equal(1, alts.length)
    assert_equal(a,  alts[0])
  end
end