test/-ext-/bignum/test_div.rb


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# frozen_string_literal: false
require 'test/unit'
require "-test-/bignum"

class TestBignum_Div < Test::Unit::TestCase

  SIZEOF_BDIGIT = Bug::Bignum::SIZEOF_BDIGIT
  BITSPERDIG = Bug::Bignum::BITSPERDIG
  BDIGMAX = (1 << BITSPERDIG) - 1

  def test_divrem_normal
    x = (1 << (BITSPERDIG*2)) | (2 << BITSPERDIG) | 3
    y = (1 << BITSPERDIG) | 1
    q = (1 << BITSPERDIG) | 1
    r = 2
    assert_equal([q, r], Bug::Bignum.big_divrem_normal(x, y))
  end

  def test_divrem_gmp
    x = (1 << (BITSPERDIG*2)) | (2 << BITSPERDIG) | 3
    y = (1 << BITSPERDIG) | 1
    q = (1 << BITSPERDIG) | 1
    r = 2
    assert_equal([q, r], Bug::Bignum.big_divrem_gmp(x, y))
  rescue NotImplementedError
  end
end