diff options
author | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-07-07 07:38:25 +0000 |
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committer | shyouhei <shyouhei@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-07-07 07:38:25 +0000 |
commit | 9ff1e787f915539b1980654e3d3d2013ff5c81d2 (patch) | |
tree | 8d0fc9ca5b4dbfa9885dc56862292d55091bcaac /ruby_1_8_6/test/ruby/test_bignum.rb | |
parent | 441546edcfbb1b346c87b69c5f578d1a0e522e06 (diff) |
wrong commit; sorryv1_8_6_269
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_8_6_269@17938 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'ruby_1_8_6/test/ruby/test_bignum.rb')
-rw-r--r-- | ruby_1_8_6/test/ruby/test_bignum.rb | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/ruby_1_8_6/test/ruby/test_bignum.rb b/ruby_1_8_6/test/ruby/test_bignum.rb deleted file mode 100644 index e070a9c866..0000000000 --- a/ruby_1_8_6/test/ruby/test_bignum.rb +++ /dev/null @@ -1,95 +0,0 @@ -require 'test/unit' - -class TestBignum < Test::Unit::TestCase - def fact(n) - return 1 if n == 0 - f = 1 - while n>0 - f *= n - n -= 1 - end - return f - end - - def test_bignum - $x = fact(40) - assert_equal($x, $x) - assert_equal($x, fact(40)) - assert($x < $x+2) - assert($x > $x-2) - assert_equal(815915283247897734345611269596115894272000000000, $x) - assert_not_equal(815915283247897734345611269596115894272000000001, $x) - assert_equal(815915283247897734345611269596115894272000000001, $x+1) - assert_equal(335367096786357081410764800000, $x/fact(20)) - $x = -$x - assert_equal(-815915283247897734345611269596115894272000000000, $x) - assert_equal(2-(2**32), -(2**32-2)) - assert_equal(2**32 - 5, (2**32-3)-2) - - for i in 1000..1014 - assert_equal(2 ** i, 1 << i) - end - - n1 = 1 << 1000 - for i in 1000..1014 - assert_equal(n1, 1 << i) - n1 *= 2 - end - - n2=n1 - for i in 1..10 - n1 = n1 / 2 - n2 = n2 >> 1 - assert_equal(n1, n2) - end - - for i in 4000..4096 - n1 = 1 << i; - assert_equal(n1-1, (n1**2-1) / (n1+1)) - end - end - - def test_calc - b = 10**80 - a = b * 9 + 7 - assert_equal(7, a.modulo(b)) - assert_equal(-b + 7, a.modulo(-b)) - assert_equal(b + -7, (-a).modulo(b)) - assert_equal(-7, (-a).modulo(-b)) - assert_equal(7, a.remainder(b)) - assert_equal(7, a.remainder(-b)) - assert_equal(-7, (-a).remainder(b)) - assert_equal(-7, (-a).remainder(-b)) - - assert_equal(10000000000000000000100000000000000000000, 10**40+10**20) - assert_equal(100000000000000000000, 10**40/10**20) - - a = 677330545177305025495135714080 - b = 14269972710765292560 - assert_equal(0, a % b) - assert_equal(0, -a % b) - end - - def shift_test(a) - b = a / (2 ** 32) - c = a >> 32 - assert_equal(b, c) - - b = a * (2 ** 32) - c = a << 32 - assert_equal(b, c) - end - - def test_shift - shift_test(-4518325415524767873) - shift_test(-0xfffffffffffffffff) - end - - def test_too_big_to_s - if (big = 2**31-1).is_a?(Fixnum) - return - end - e = assert_raise(RangeError) {(1 << big).to_s} - assert_match(/too big to convert/, e.message) - end -end |