# coding: utf-8
# frozen_string_literal: true

require 'test/unit'

require_relative '../language'

class TestLanguageBranch < Test::Unit::TestCase
  def test_loop
    lang = Rpl::Language.new
    lang.run '11 16 « "hello no." swap + » loop'

    assert_equal [{ value: '"hello no.11"', type: :string },
                  { value: '"hello no.12"', type: :string },
                  { value: '"hello no.13"', type: :string },
                  { value: '"hello no.14"', type: :string },
                  { value: '"hello no.15"', type: :string },
                  { value: '"hello no.16"', type: :string }],
                 lang.stack
  end

  def test_times
    lang = Rpl::Language.new
    lang.run '5 « "hello no." swap + » times'

    assert_equal [{ value: '"hello no.0"', type: :string },
                  { value: '"hello no.1"', type: :string },
                  { value: '"hello no.2"', type: :string },
                  { value: '"hello no.3"', type: :string },
                  { value: '"hello no.4"', type: :string }],
                 lang.stack
  end

  def test_ifte
    lang = Rpl::Language.new
    lang.run 'true « 2 3 + » « 2 3 - » ifte'

    assert_equal [{ value: 5, type: :numeric, base: 10 }],
                 lang.stack

    lang = Rpl::Language.new
    lang.run 'false « 2 3 + » « 2 3 - » ifte'

    assert_equal [{ value: -1, type: :numeric, base: 10 }],
                 lang.stack
  end

  def test_ift
    lang = Rpl::Language.new
    lang.run 'true « 2 3 + » ift'

    assert_equal [{ value: 5, type: :numeric, base: 10 }],
                 lang.stack

    lang = Rpl::Language.new
    lang.run 'false « 2 3 + » ift'

    assert_equal [],
                 lang.stack
  end
end