diff options
Diffstat (limited to 'test/ruby/test_bignum.rb')
| -rw-r--r-- | test/ruby/test_bignum.rb | 69 |
1 files changed, 65 insertions, 4 deletions
diff --git a/test/ruby/test_bignum.rb b/test/ruby/test_bignum.rb index 3ffe7114b5..c366f794b2 100644 --- a/test/ruby/test_bignum.rb +++ b/test/ruby/test_bignum.rb @@ -203,6 +203,15 @@ class TestBignum < Test::Unit::TestCase assert_equal(00_02, '00_02'.to_i) end + def test_very_big_str_to_inum + assert_separately([], "#{<<~"begin;"}\n#{<<~'end;'}") + begin; + digits = [["3", 700], ["0", 2700], ["1", 1], ["0", 26599]] + num = digits.inject(+"") {|s,(c,n)|s << c*n}.to_i + assert_equal digits.sum {|c,n|n}, num.to_s.size + end; + end + def test_to_s2 assert_raise(ArgumentError) { T31P.to_s(37) } assert_equal("9" * 32768, (10**32768-1).to_s) @@ -467,8 +476,8 @@ class TestBignum < Test::Unit::TestCase def test_pow assert_equal(1.0, T32 ** 0.0) assert_equal(1.0 / T32, T32 ** -1) - assert_equal(1, assert_warning(/may be too big/) {T32 ** T32}.infinite?) - assert_equal(1, assert_warning(/may be too big/) {T32 ** (2**30-1)}.infinite?) + assert_raise(ArgumentError) { T32 ** T32 } + assert_raise(ArgumentError) { T32 ** (2**30-1) } ### rational changes the behavior of Bignum#** #assert_raise(TypeError) { T32**"foo" } @@ -596,6 +605,49 @@ class TestBignum < Test::Unit::TestCase assert_equal(1, (-2**(BIGNUM_MIN_BITS*4))[BIGNUM_MIN_BITS*4]) end + def test_aref2 + x = (0x123456789abcdef << (BIGNUM_MIN_BITS + 32)) | 0x12345678 + assert_equal(x, x[0, x.bit_length]) + assert_equal(x >> 10, x[10, x.bit_length]) + assert_equal(0x45678, x[0, 20]) + assert_equal(0x6780, x[-4, 16]) + assert_equal(0x123456, x[x.bit_length - 21, 40]) + assert_equal(0x6789ab, x[x.bit_length - 41, 24]) + assert_equal(0, x[-20, 10]) + assert_equal(0, x[x.bit_length + 10, 10]) + + assert_equal(0, x[5, 0]) + assert_equal(0, (-x)[5, 0]) + + assert_equal(x >> 5, x[5, -1]) + assert_equal(x << 5, x[-5, -1]) + assert_equal((-x) >> 5, (-x)[5, -1]) + assert_equal((-x) << 5, (-x)[-5, -1]) + + assert_equal(x << 5, x[-5, FIXNUM_MAX]) + assert_equal(x >> 5, x[5, FIXNUM_MAX]) + assert_equal(0, x[FIXNUM_MIN, 100]) + assert_equal(0, (-x)[FIXNUM_MIN, 100]) + + y = (x << 160) | 0x1234_0000_0000_0000_1234_0000_0000_0000 + assert_equal(0xffffedcc00, (-y)[40, 40]) + assert_equal(0xfffffffedc, (-y)[52, 40]) + assert_equal(0xffffedcbff, (-y)[104, 40]) + assert_equal(0xfffff6e5d4, (-y)[y.bit_length - 20, 40]) + assert_equal(0, (-y)[-20, 10]) + assert_equal(0xfff, (-y)[y.bit_length + 10, 12]) + + z = (1 << (BIGNUM_MIN_BITS * 2)) - 1 + assert_equal(0x400, (-z)[-10, 20]) + assert_equal(1, (-z)[0, 20]) + assert_equal(0, (-z)[10, 20]) + assert_equal(1, (-z)[0, z.bit_length]) + assert_equal(0, (-z)[z.bit_length - 10, 10]) + assert_equal(0x400, (-z)[z.bit_length - 10, 11]) + assert_equal(0xfff, (-z)[z.bit_length, 12]) + assert_equal(0xfff00, (-z)[z.bit_length - 8, 20]) + end + def test_hash assert_nothing_raised { T31P.hash } end @@ -644,7 +696,7 @@ class TestBignum < Test::Unit::TestCase thread.raise thread.join time = Time.now - time - skip "too fast cpu" if end_flag + omit "too fast cpu" if end_flag assert_operator(time, :<, 10) end @@ -675,7 +727,7 @@ class TestBignum < Test::Unit::TestCase return end end - skip "cannot create suitable test case" + omit "cannot create suitable test case" ensure Signal.trap(:INT, oldtrap) if oldtrap end @@ -769,6 +821,9 @@ class TestBignum < Test::Unit::TestCase assert_equal([7215, 2413, 6242], T1024P.digits(10_000).first(3)) assert_equal([11], 11.digits(T1024P)) assert_equal([T1024P - 1, 1], (T1024P + T1024P - 1).digits(T1024P)) + bug21680 = '[ruby-core:123769] [Bug #21680]' + assert_equal([0] * 64 + [1], (2**512).digits(256), bug21680) + assert_equal([0] * 128 + [1], (123**128).digits(123), bug21680) end def test_digits_for_negative_numbers @@ -812,5 +867,11 @@ class TestBignum < Test::Unit::TestCase assert_nil(T1024P.infinite?) assert_nil((-T1024P).infinite?) end + + def test_gmp_version + if RbConfig::CONFIG.fetch('configure_args').include?("'--with-gmp'") + assert_kind_of(String, Integer::GMP_VERSION) + end + end if ENV['GITHUB_WORKFLOW'] == 'Compilations' end end |