test/-ext-/bignum/test_big2str.rb


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

class Test_Bignum < Test::Unit::TestCase
  class TestBig2str < Test::Unit::TestCase

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

    def test_big2str_generic
      x = 10**1000
      assert_equal("1" + "0" * 1000, Bug::Bignum.big2str_generic(x, 10))
    end

    def test_big2str_poweroftwo
      e = BITSPERDIG*2
      x = 0b10**e
      assert_equal("1" + "0" * e, Bug::Bignum.big2str_poweroftwo(x, 2))
    end

    def test_big2str_gmp
      x = 10**1000
      assert_equal("1" + "0" * 1000, Bug::Bignum.big2str_gmp(x, 10))
    rescue NotImplementedError
    end

  end
end