diff options
Diffstat (limited to 'test/-ext-/bignum')
| -rw-r--r-- | test/-ext-/bignum/test_big2str.rb | 38 | ||||
| -rw-r--r-- | test/-ext-/bignum/test_bigzero.rb | 20 | ||||
| -rw-r--r-- | test/-ext-/bignum/test_div.rb | 38 | ||||
| -rw-r--r-- | test/-ext-/bignum/test_mul.rb | 260 | ||||
| -rw-r--r-- | test/-ext-/bignum/test_pack.rb | 653 | ||||
| -rw-r--r-- | test/-ext-/bignum/test_str2big.rb | 52 |
6 files changed, 524 insertions, 537 deletions
diff --git a/test/-ext-/bignum/test_big2str.rb b/test/-ext-/bignum/test_big2str.rb index f8d6320338..88e35a7294 100644 --- a/test/-ext-/bignum/test_big2str.rb +++ b/test/-ext-/bignum/test_big2str.rb @@ -2,29 +2,27 @@ require 'test/unit' require "-test-/bignum" -class Test_Bignum < Test::Unit::TestCase - class TestBig2str < Test::Unit::TestCase +class TestBignum_Big2str < Test::Unit::TestCase - SIZEOF_BDIGIT = Bug::Bignum::SIZEOF_BDIGIT - BITSPERDIG = Bug::Bignum::BITSPERDIG - BDIGMAX = (1 << BITSPERDIG) - 1 + 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_generic + x = 10**1000 + assert_equal("1" + "0" * 1000, Bug::Bignum.big2str_generic(x, 10)) + end - def test_big2str_gmp - x = 10**1000 - assert_equal("1" + "0" * 1000, Bug::Bignum.big2str_gmp(x, 10)) - rescue NotImplementedError - 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 diff --git a/test/-ext-/bignum/test_bigzero.rb b/test/-ext-/bignum/test_bigzero.rb index cf34964acd..6dfa3486c1 100644 --- a/test/-ext-/bignum/test_bigzero.rb +++ b/test/-ext-/bignum/test_bigzero.rb @@ -2,19 +2,17 @@ require 'test/unit' require "-test-/bignum" -class Test_Bignum < Test::Unit::TestCase - class TestBigZero < Test::Unit::TestCase - def test_equal_0 - bug8204 = '[ruby-core:53893] [Bug #8204]' - (0..10).each do |i| - assert_equal(0, Bug::Bignum.zero(i), "#{bug8204} Bignum.zero(#{i})") - end +class TestBignum_BigZero < Test::Unit::TestCase + def test_equal_0 + bug8204 = '[ruby-core:53893] [Bug #8204]' + (0..10).each do |i| + assert_equal(0, Bug::Bignum.zero(i), "#{bug8204} Bignum.zero(#{i})") end + end - def test_zero? - (0..10).each do |i| - assert_equal(true, Bug::Bignum.zero(i).zero?) - end + def test_zero? + (0..10).each do |i| + assert_equal(true, Bug::Bignum.zero(i).zero?) end end end diff --git a/test/-ext-/bignum/test_div.rb b/test/-ext-/bignum/test_div.rb index e61fc2ced5..0c6f635ae8 100644 --- a/test/-ext-/bignum/test_div.rb +++ b/test/-ext-/bignum/test_div.rb @@ -2,28 +2,26 @@ require 'test/unit' require "-test-/bignum" -class Test_Bignum < Test::Unit::TestCase - class TestDiv < Test::Unit::TestCase +class TestBignum_Div < Test::Unit::TestCase - SIZEOF_BDIGIT = Bug::Bignum::SIZEOF_BDIGIT - BITSPERDIG = Bug::Bignum::BITSPERDIG - BDIGMAX = (1 << BITSPERDIG) - 1 + 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_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 + 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 diff --git a/test/-ext-/bignum/test_mul.rb b/test/-ext-/bignum/test_mul.rb index 7653a8e37a..95186bbf76 100644 --- a/test/-ext-/bignum/test_mul.rb +++ b/test/-ext-/bignum/test_mul.rb @@ -2,137 +2,135 @@ require 'test/unit' require "-test-/bignum" -class Test_Bignum < Test::Unit::TestCase - class TestMul < Test::Unit::TestCase - - SIZEOF_BDIGIT = Bug::Bignum::SIZEOF_BDIGIT - BITSPERDIG = Bug::Bignum::BITSPERDIG - BDIGMAX = (1 << BITSPERDIG) - 1 - - def test_mul_normal - x = (1 << BITSPERDIG) | 1 - y = (1 << BITSPERDIG) | 1 - z = (1 << (BITSPERDIG*2)) | (2 << BITSPERDIG) | 1 - assert_equal(z, Bug::Bignum.big_mul_normal(x, y)) - end - - def test_mul_normal_zero_in_x - x = (1 << (2*BITSPERDIG)) | 1 - y = (1 << BITSPERDIG) | 1 - z = (1 << (BITSPERDIG*3)) | (1 << (BITSPERDIG*2)) | (1 << BITSPERDIG) | 1 - assert_equal(z, Bug::Bignum.big_mul_normal(x, y)) - end - - def test_mul_normal_zero_in_y - x = (1 << BITSPERDIG) | 1 - y = (1 << (2*BITSPERDIG)) | 1 - z = (1 << (BITSPERDIG*3)) | (1 << (BITSPERDIG*2)) | (1 << BITSPERDIG) | 1 - assert_equal(z, Bug::Bignum.big_mul_normal(x, y)) - end - - def test_mul_normal_max_max - x = (1 << (2*BITSPERDIG)) - 1 - y = (1 << (2*BITSPERDIG)) - 1 - z = (1 << (4*BITSPERDIG)) - (1 << (2*BITSPERDIG+1)) + 1 - assert_equal(z, Bug::Bignum.big_mul_normal(x, y)) - end - - def test_sq_fast - x = (1 << BITSPERDIG) | 1 - z = (1 << 2*BITSPERDIG) | (2 << BITSPERDIG) | 1 - assert_equal(z, Bug::Bignum.big_sq_fast(x)) - end - - def test_sq_fast_max2 - x = (BDIGMAX << BITSPERDIG) | BDIGMAX - assert_equal(Bug::Bignum.big_mul_normal(x, x), Bug::Bignum.big_sq_fast(x)) - end - - def test_sq_fast_zero_in_middle - x = (BDIGMAX << 2*BITSPERDIG) | BDIGMAX - assert_equal(Bug::Bignum.big_mul_normal(x, x), Bug::Bignum.big_sq_fast(x)) - end - - def test_mul_balance - x = (1 << BITSPERDIG) | 1 - y = (1 << BITSPERDIG) | 1 - z = (1 << (BITSPERDIG*2)) | (2 << BITSPERDIG) | 1 - assert_equal(z, Bug::Bignum.big_mul_balance(x, y)) - end - - def test_mul_balance_2x16 - x = (1 << BITSPERDIG) | 1 - y = (1 << BITSPERDIG*16) | 1 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_balance(x, y)) - end - - def test_mul_balance_2x17 - x = (1 << BITSPERDIG) | 1 - y = (1 << BITSPERDIG*17) | 1 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_balance(x, y)) - end - - def test_mul_karatsuba - x = (1 << BITSPERDIG) | 1 - y = (1 << BITSPERDIG) | 1 - z = (1 << (BITSPERDIG*2)) | (2 << BITSPERDIG) | 1 - assert_equal(z, Bug::Bignum.big_mul_karatsuba(x, y)) - end - - def test_mul_karatsuba_odd_y - x = (1 << BITSPERDIG) | 1 - y = (1 << (2*BITSPERDIG)) | 1 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) - end - - def test_mul_karatsuba_odd_xy - x = (1 << (2*BITSPERDIG)) | 1 - y = (1 << (2*BITSPERDIG)) | 1 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) - end - - def test_mul_karatsuba_x1_gt_x0 - x = (2 << BITSPERDIG) | 1 - y = (1 << BITSPERDIG) | 2 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) - end - - def test_mul_karatsuba_y1_gt_y0 - x = (1 << BITSPERDIG) | 2 - y = (2 << BITSPERDIG) | 1 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) - end - - def test_mul_karatsuba_x1_gt_x0_and_y1_gt_y0 - x = (2 << BITSPERDIG) | 1 - y = (2 << BITSPERDIG) | 1 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) - end - - def test_mul_karatsuba_carry2 - x = (1 << BITSPERDIG) | BDIGMAX - y = (1 << BITSPERDIG) | BDIGMAX - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) - end - - def test_mul_karatsuba_borrow - x = (BDIGMAX << BITSPERDIG) | 1 - y = (BDIGMAX << BITSPERDIG) | 1 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) - end - - def test_mul_toom3 - x = (1 << 2*BITSPERDIG) | (1 << BITSPERDIG) | 1 - y = (1 << 2*BITSPERDIG) | (1 << BITSPERDIG) | 1 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_toom3(x, y)) - end - - def test_mul_gmp - x = (1 << 2*BITSPERDIG) | (1 << BITSPERDIG) | 1 - y = (1 << 2*BITSPERDIG) | (1 << BITSPERDIG) | 1 - assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_gmp(x, y)) - rescue NotImplementedError - end +class TestBignum_Mul < Test::Unit::TestCase + SIZEOF_BDIGIT = Bug::Bignum::SIZEOF_BDIGIT + BITSPERDIG = Bug::Bignum::BITSPERDIG + BDIGMAX = (1 << BITSPERDIG) - 1 + + def test_mul_normal + x = (1 << BITSPERDIG) | 1 + y = (1 << BITSPERDIG) | 1 + z = (1 << (BITSPERDIG*2)) | (2 << BITSPERDIG) | 1 + assert_equal(z, Bug::Bignum.big_mul_normal(x, y)) + end + + def test_mul_normal_zero_in_x + x = (1 << (2*BITSPERDIG)) | 1 + y = (1 << BITSPERDIG) | 1 + z = (1 << (BITSPERDIG*3)) | (1 << (BITSPERDIG*2)) | (1 << BITSPERDIG) | 1 + assert_equal(z, Bug::Bignum.big_mul_normal(x, y)) + end + + def test_mul_normal_zero_in_y + x = (1 << BITSPERDIG) | 1 + y = (1 << (2*BITSPERDIG)) | 1 + z = (1 << (BITSPERDIG*3)) | (1 << (BITSPERDIG*2)) | (1 << BITSPERDIG) | 1 + assert_equal(z, Bug::Bignum.big_mul_normal(x, y)) + end + + def test_mul_normal_max_max + x = (1 << (2*BITSPERDIG)) - 1 + y = (1 << (2*BITSPERDIG)) - 1 + z = (1 << (4*BITSPERDIG)) - (1 << (2*BITSPERDIG+1)) + 1 + assert_equal(z, Bug::Bignum.big_mul_normal(x, y)) + end + + def test_sq_fast + x = (1 << BITSPERDIG) | 1 + z = (1 << 2*BITSPERDIG) | (2 << BITSPERDIG) | 1 + assert_equal(z, Bug::Bignum.big_sq_fast(x)) + end + + def test_sq_fast_max2 + x = (BDIGMAX << BITSPERDIG) | BDIGMAX + assert_equal(Bug::Bignum.big_mul_normal(x, x), Bug::Bignum.big_sq_fast(x)) + end + + def test_sq_fast_zero_in_middle + x = (BDIGMAX << 2*BITSPERDIG) | BDIGMAX + assert_equal(Bug::Bignum.big_mul_normal(x, x), Bug::Bignum.big_sq_fast(x)) + end + + def test_mul_balance + x = (1 << BITSPERDIG) | 1 + y = (1 << BITSPERDIG) | 1 + z = (1 << (BITSPERDIG*2)) | (2 << BITSPERDIG) | 1 + assert_equal(z, Bug::Bignum.big_mul_balance(x, y)) + end + + def test_mul_balance_2x16 + x = (1 << BITSPERDIG) | 1 + y = (1 << BITSPERDIG*16) | 1 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_balance(x, y)) + end + + def test_mul_balance_2x17 + x = (1 << BITSPERDIG) | 1 + y = (1 << BITSPERDIG*17) | 1 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_balance(x, y)) + end + + def test_mul_karatsuba + x = (1 << BITSPERDIG) | 1 + y = (1 << BITSPERDIG) | 1 + z = (1 << (BITSPERDIG*2)) | (2 << BITSPERDIG) | 1 + assert_equal(z, Bug::Bignum.big_mul_karatsuba(x, y)) + end + + def test_mul_karatsuba_odd_y + x = (1 << BITSPERDIG) | 1 + y = (1 << (2*BITSPERDIG)) | 1 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) + end + + def test_mul_karatsuba_odd_xy + x = (1 << (2*BITSPERDIG)) | 1 + y = (1 << (2*BITSPERDIG)) | 1 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) + end + + def test_mul_karatsuba_x1_gt_x0 + x = (2 << BITSPERDIG) | 1 + y = (1 << BITSPERDIG) | 2 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) + end + + def test_mul_karatsuba_y1_gt_y0 + x = (1 << BITSPERDIG) | 2 + y = (2 << BITSPERDIG) | 1 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) + end + + def test_mul_karatsuba_x1_gt_x0_and_y1_gt_y0 + x = (2 << BITSPERDIG) | 1 + y = (2 << BITSPERDIG) | 1 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) + end + + def test_mul_karatsuba_carry2 + x = (1 << BITSPERDIG) | BDIGMAX + y = (1 << BITSPERDIG) | BDIGMAX + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) + end + + def test_mul_karatsuba_borrow + x = (BDIGMAX << BITSPERDIG) | 1 + y = (BDIGMAX << BITSPERDIG) | 1 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_karatsuba(x, y)) end + + def test_mul_toom3 + x = (1 << 2*BITSPERDIG) | (1 << BITSPERDIG) | 1 + y = (1 << 2*BITSPERDIG) | (1 << BITSPERDIG) | 1 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_toom3(x, y)) + end + + def test_mul_gmp + x = (1 << 2*BITSPERDIG) | (1 << BITSPERDIG) | 1 + y = (1 << 2*BITSPERDIG) | (1 << BITSPERDIG) | 1 + assert_equal(Bug::Bignum.big_mul_normal(x, y), Bug::Bignum.big_mul_gmp(x, y)) + rescue NotImplementedError + end + end diff --git a/test/-ext-/bignum/test_pack.rb b/test/-ext-/bignum/test_pack.rb index d5605236f7..b7aea9ab68 100644 --- a/test/-ext-/bignum/test_pack.rb +++ b/test/-ext-/bignum/test_pack.rb @@ -4,348 +4,346 @@ require 'test/unit' require "-test-/bignum" -class Test_Bignum < Test::Unit::TestCase - class TestPack < Test::Unit::TestCase - - MSWORD_FIRST = Bug::Bignum::INTEGER_PACK_MSWORD_FIRST - LSWORD_FIRST = Bug::Bignum::INTEGER_PACK_LSWORD_FIRST - MSBYTE_FIRST = Bug::Bignum::INTEGER_PACK_MSBYTE_FIRST - LSBYTE_FIRST = Bug::Bignum::INTEGER_PACK_LSBYTE_FIRST - NATIVE_BYTE_ORDER = Bug::Bignum::INTEGER_PACK_NATIVE_BYTE_ORDER - TWOCOMP = Bug::Bignum::INTEGER_PACK_2COMP - LITTLE_ENDIAN = Bug::Bignum::INTEGER_PACK_LITTLE_ENDIAN - BIG_ENDIAN = Bug::Bignum::INTEGER_PACK_BIG_ENDIAN - NEGATIVE = Bug::Bignum::INTEGER_PACK_NEGATIVE - GENERIC = Bug::Bignum::INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION - - def test_pack_zero - assert_equal([0, ""], Bug::Bignum.test_pack(0, 0, 1, 0, BIG_ENDIAN)) - end - - def test_pack_argument_check - assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 2, 1, 0, MSBYTE_FIRST) } - assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 0, 1, 0, MSWORD_FIRST) } - assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 0, 0, 0, BIG_ENDIAN) } - assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 0, 1, 8, BIG_ENDIAN) } - - # assume sizeof(ssize_t) == sizeof(intptr_t) - assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 1 << ([""].pack("p").length * 8 - 1), 0, BIG_ENDIAN) } - end - - def test_pack_wordsize - assert_equal([1, "\x01"], Bug::Bignum.test_pack(1, 1, 1, 0, BIG_ENDIAN)) - assert_equal([1, "\x00\x01"], Bug::Bignum.test_pack(1, 1, 2, 0, BIG_ENDIAN)) - assert_equal([1, "\x00\x00\x01"], Bug::Bignum.test_pack(1, 1, 3, 0, BIG_ENDIAN)) - assert_equal([1, "\x01"], Bug::Bignum.test_pack(1, 1, 1, 0, LITTLE_ENDIAN)) - assert_equal([1, "\x01\x00"], Bug::Bignum.test_pack(1, 1, 2, 0, LITTLE_ENDIAN)) - assert_equal([1, "\x01\x00\x00"], Bug::Bignum.test_pack(1, 1, 3, 0, LITTLE_ENDIAN)) - end - - def test_pack_fixed_buffer - assert_equal([0, "\x00\x00"], Bug::Bignum.test_pack(0, 2, 1, 0, BIG_ENDIAN)) - assert_equal([1, "\x00\x01"], Bug::Bignum.test_pack(0x01, 2, 1, 0, BIG_ENDIAN)) - assert_equal([1, "\x02\x01"], Bug::Bignum.test_pack(0x0201, 2, 1, 0, BIG_ENDIAN)) - assert_equal([2, "\x02\x01"], Bug::Bignum.test_pack(0x030201, 2, 1, 0, BIG_ENDIAN)) - assert_equal([2, "\x02\x01"], Bug::Bignum.test_pack(0x04030201, 2, 1, 0, BIG_ENDIAN)) - assert_equal([0, "\x00\x00"], Bug::Bignum.test_pack(0, 2, 1, 0, LITTLE_ENDIAN)) - assert_equal([1, "\x01\x00"], Bug::Bignum.test_pack(0x01, 2, 1, 0, LITTLE_ENDIAN)) - assert_equal([1, "\x01\x02"], Bug::Bignum.test_pack(0x0201, 2, 1, 0, LITTLE_ENDIAN)) - assert_equal([2, "\x01\x02"], Bug::Bignum.test_pack(0x030201, 2, 1, 0, LITTLE_ENDIAN)) - assert_equal([2, "\x01\x02"], Bug::Bignum.test_pack(0x04030201, 2, 1, 0, LITTLE_ENDIAN)) - end - - def test_pack_wordorder_and_endian - assert_equal([1, "\x12\x34\x56\x78"], Bug::Bignum.test_pack(0x12345678, 2, 2, 0, MSWORD_FIRST|MSBYTE_FIRST)) - assert_equal([1, "\x34\x12\x78\x56"], Bug::Bignum.test_pack(0x12345678, 2, 2, 0, MSWORD_FIRST|LSBYTE_FIRST)) - assert_equal([1, "\x56\x78\x12\x34"], Bug::Bignum.test_pack(0x12345678, 2, 2, 0, LSWORD_FIRST|MSBYTE_FIRST)) - assert_equal([1, "\x78\x56\x34\x12"], Bug::Bignum.test_pack(0x12345678, 2, 2, 0, LSWORD_FIRST|LSBYTE_FIRST)) - end - - def test_pack_native_endian - assert_equal([1, [0x1234].pack("S!")], Bug::Bignum.test_pack(0x1234, 1, 2, 0, MSWORD_FIRST|NATIVE_BYTE_ORDER)) - end - - def test_pack_nail - assert_equal([1, "\x01\x00\x00\x00\x01\x01"], Bug::Bignum.test_pack(0b100011, 6, 1, 7, BIG_ENDIAN)) - assert_equal([1, "\x01\x02\x03\x04\x05\x06\x07\x08"], Bug::Bignum.test_pack(0x12345678, 8, 1, 4, BIG_ENDIAN)) - assert_equal([1, "\x00\x12\x00\x34\x00\x56\x00\x78"], Bug::Bignum.test_pack(0x12345678, 4, 2, 8, BIG_ENDIAN)) - end - - def test_pack_overflow - assert_equal([-2, "\x1"], Bug::Bignum.test_pack((-0x11), 1, 1, 4, BIG_ENDIAN)) - assert_equal([-2, "\x0"], Bug::Bignum.test_pack((-0x10), 1, 1, 4, BIG_ENDIAN)) - assert_equal([-1, "\xF"], Bug::Bignum.test_pack((-0x0F), 1, 1, 4, BIG_ENDIAN)) - assert_equal([+1, "\xF"], Bug::Bignum.test_pack((+0x0F), 1, 1, 4, BIG_ENDIAN)) - assert_equal([+2, "\x0"], Bug::Bignum.test_pack((+0x10), 1, 1, 4, BIG_ENDIAN)) - assert_equal([+2, "\x1"], Bug::Bignum.test_pack((+0x11), 1, 1, 4, BIG_ENDIAN)) - - assert_equal([-2, "\x01"], Bug::Bignum.test_pack((-0x101), 1, 1, 0, BIG_ENDIAN)) - assert_equal([-2, "\x00"], Bug::Bignum.test_pack((-0x100), 1, 1, 0, BIG_ENDIAN)) - assert_equal([-1, "\xFF"], Bug::Bignum.test_pack((-0x0FF), 1, 1, 0, BIG_ENDIAN)) - assert_equal([+1, "\xFF"], Bug::Bignum.test_pack((+0x0FF), 1, 1, 0, BIG_ENDIAN)) - assert_equal([+2, "\x00"], Bug::Bignum.test_pack((+0x100), 1, 1, 0, BIG_ENDIAN)) - assert_equal([+2, "\x01"], Bug::Bignum.test_pack((+0x101), 1, 1, 0, BIG_ENDIAN)) - - assert_equal([-2, "\x00\x00\x00\x00\x00\x00\x00\x01"], Bug::Bignum.test_pack((-0x10000000000000001), 2, 4, 0, BIG_ENDIAN)) - assert_equal([-2, "\x00\x00\x00\x00\x00\x00\x00\x00"], Bug::Bignum.test_pack((-0x10000000000000000), 2, 4, 0, BIG_ENDIAN)) - assert_equal([-1, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"], Bug::Bignum.test_pack((-0x0FFFFFFFFFFFFFFFF), 2, 4, 0, BIG_ENDIAN)) - assert_equal([+1, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"], Bug::Bignum.test_pack((+0x0FFFFFFFFFFFFFFFF), 2, 4, 0, BIG_ENDIAN)) - assert_equal([+2, "\x00\x00\x00\x00\x00\x00\x00\x00"], Bug::Bignum.test_pack((+0x10000000000000000), 2, 4, 0, BIG_ENDIAN)) - assert_equal([+2, "\x00\x00\x00\x00\x00\x00\x00\x01"], Bug::Bignum.test_pack((+0x10000000000000001), 2, 4, 0, BIG_ENDIAN)) - - 1.upto(16) {|wordsize| - 1.upto(20) {|numwords| - w = numwords*wordsize - n = 256**w - assert_equal([-2, "\x00"*(w-1)+"\x01"], Bug::Bignum.test_pack((-n-1), numwords, wordsize, 0, BIG_ENDIAN)) - assert_equal([-2, "\x00"*w], Bug::Bignum.test_pack((-n ), numwords, wordsize, 0, BIG_ENDIAN)) - assert_equal([-1, "\xFF"*w], Bug::Bignum.test_pack((-n+1), numwords, wordsize, 0, BIG_ENDIAN)) - assert_equal([+1, "\xFF"*w], Bug::Bignum.test_pack((+n-1), numwords, wordsize, 0, BIG_ENDIAN)) - assert_equal([+2, "\x00"*w], Bug::Bignum.test_pack((+n ), numwords, wordsize, 0, BIG_ENDIAN)) - assert_equal([+2, "\x00"*(w-1)+"\x01"], Bug::Bignum.test_pack((+n+1), numwords, wordsize, 0, BIG_ENDIAN)) - } - } +class TestBignum_Pack < Test::Unit::TestCase + + MSWORD_FIRST = Bug::Bignum::INTEGER_PACK_MSWORD_FIRST + LSWORD_FIRST = Bug::Bignum::INTEGER_PACK_LSWORD_FIRST + MSBYTE_FIRST = Bug::Bignum::INTEGER_PACK_MSBYTE_FIRST + LSBYTE_FIRST = Bug::Bignum::INTEGER_PACK_LSBYTE_FIRST + NATIVE_BYTE_ORDER = Bug::Bignum::INTEGER_PACK_NATIVE_BYTE_ORDER + TWOCOMP = Bug::Bignum::INTEGER_PACK_2COMP + LITTLE_ENDIAN = Bug::Bignum::INTEGER_PACK_LITTLE_ENDIAN + BIG_ENDIAN = Bug::Bignum::INTEGER_PACK_BIG_ENDIAN + NEGATIVE = Bug::Bignum::INTEGER_PACK_NEGATIVE + GENERIC = Bug::Bignum::INTEGER_PACK_FORCE_GENERIC_IMPLEMENTATION + + def test_pack_zero + assert_equal([0, ""], Bug::Bignum.test_pack(0, 0, 1, 0, BIG_ENDIAN)) + end - 1.upto(16) {|wordsize| - 1.upto(20) {|numwords| - w = numwords*wordsize - n = 256**w - assert_equal([-2, "\x01"+"\x00"*(w-1)], Bug::Bignum.test_pack((-n-1), numwords, wordsize, 0, LITTLE_ENDIAN)) - assert_equal([-2, "\x00"*w], Bug::Bignum.test_pack((-n ), numwords, wordsize, 0, LITTLE_ENDIAN)) - assert_equal([-1, "\xFF"*w], Bug::Bignum.test_pack((-n+1), numwords, wordsize, 0, LITTLE_ENDIAN)) - assert_equal([+1, "\xFF"*w], Bug::Bignum.test_pack((+n-1), numwords, wordsize, 0, LITTLE_ENDIAN)) - assert_equal([+2, "\x00"*w], Bug::Bignum.test_pack((+n ), numwords, wordsize, 0, LITTLE_ENDIAN)) - assert_equal([+2, "\x01"+"\x00"*(w-1)], Bug::Bignum.test_pack((+n+1), numwords, wordsize, 0, LITTLE_ENDIAN)) - } + def test_pack_argument_check + assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 2, 1, 0, MSBYTE_FIRST) } + assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 0, 1, 0, MSWORD_FIRST) } + assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 0, 0, 0, BIG_ENDIAN) } + assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 0, 1, 8, BIG_ENDIAN) } + + # assume sizeof(ssize_t) == sizeof(intptr_t) + assert_raise(ArgumentError) { Bug::Bignum.test_pack_raw(0, "", 1 << ([""].pack("p").length * 8 - 1), 0, BIG_ENDIAN) } + end + + def test_pack_wordsize + assert_equal([1, "\x01"], Bug::Bignum.test_pack(1, 1, 1, 0, BIG_ENDIAN)) + assert_equal([1, "\x00\x01"], Bug::Bignum.test_pack(1, 1, 2, 0, BIG_ENDIAN)) + assert_equal([1, "\x00\x00\x01"], Bug::Bignum.test_pack(1, 1, 3, 0, BIG_ENDIAN)) + assert_equal([1, "\x01"], Bug::Bignum.test_pack(1, 1, 1, 0, LITTLE_ENDIAN)) + assert_equal([1, "\x01\x00"], Bug::Bignum.test_pack(1, 1, 2, 0, LITTLE_ENDIAN)) + assert_equal([1, "\x01\x00\x00"], Bug::Bignum.test_pack(1, 1, 3, 0, LITTLE_ENDIAN)) + end + + def test_pack_fixed_buffer + assert_equal([0, "\x00\x00"], Bug::Bignum.test_pack(0, 2, 1, 0, BIG_ENDIAN)) + assert_equal([1, "\x00\x01"], Bug::Bignum.test_pack(0x01, 2, 1, 0, BIG_ENDIAN)) + assert_equal([1, "\x02\x01"], Bug::Bignum.test_pack(0x0201, 2, 1, 0, BIG_ENDIAN)) + assert_equal([2, "\x02\x01"], Bug::Bignum.test_pack(0x030201, 2, 1, 0, BIG_ENDIAN)) + assert_equal([2, "\x02\x01"], Bug::Bignum.test_pack(0x04030201, 2, 1, 0, BIG_ENDIAN)) + assert_equal([0, "\x00\x00"], Bug::Bignum.test_pack(0, 2, 1, 0, LITTLE_ENDIAN)) + assert_equal([1, "\x01\x00"], Bug::Bignum.test_pack(0x01, 2, 1, 0, LITTLE_ENDIAN)) + assert_equal([1, "\x01\x02"], Bug::Bignum.test_pack(0x0201, 2, 1, 0, LITTLE_ENDIAN)) + assert_equal([2, "\x01\x02"], Bug::Bignum.test_pack(0x030201, 2, 1, 0, LITTLE_ENDIAN)) + assert_equal([2, "\x01\x02"], Bug::Bignum.test_pack(0x04030201, 2, 1, 0, LITTLE_ENDIAN)) + end + + def test_pack_wordorder_and_endian + assert_equal([1, "\x12\x34\x56\x78"], Bug::Bignum.test_pack(0x12345678, 2, 2, 0, MSWORD_FIRST|MSBYTE_FIRST)) + assert_equal([1, "\x34\x12\x78\x56"], Bug::Bignum.test_pack(0x12345678, 2, 2, 0, MSWORD_FIRST|LSBYTE_FIRST)) + assert_equal([1, "\x56\x78\x12\x34"], Bug::Bignum.test_pack(0x12345678, 2, 2, 0, LSWORD_FIRST|MSBYTE_FIRST)) + assert_equal([1, "\x78\x56\x34\x12"], Bug::Bignum.test_pack(0x12345678, 2, 2, 0, LSWORD_FIRST|LSBYTE_FIRST)) + end + + def test_pack_native_endian + assert_equal([1, [0x1234].pack("S!")], Bug::Bignum.test_pack(0x1234, 1, 2, 0, MSWORD_FIRST|NATIVE_BYTE_ORDER)) + end + + def test_pack_nail + assert_equal([1, "\x01\x00\x00\x00\x01\x01"], Bug::Bignum.test_pack(0b100011, 6, 1, 7, BIG_ENDIAN)) + assert_equal([1, "\x01\x02\x03\x04\x05\x06\x07\x08"], Bug::Bignum.test_pack(0x12345678, 8, 1, 4, BIG_ENDIAN)) + assert_equal([1, "\x00\x12\x00\x34\x00\x56\x00\x78"], Bug::Bignum.test_pack(0x12345678, 4, 2, 8, BIG_ENDIAN)) + end + + def test_pack_overflow + assert_equal([-2, "\x1"], Bug::Bignum.test_pack((-0x11), 1, 1, 4, BIG_ENDIAN)) + assert_equal([-2, "\x0"], Bug::Bignum.test_pack((-0x10), 1, 1, 4, BIG_ENDIAN)) + assert_equal([-1, "\xF"], Bug::Bignum.test_pack((-0x0F), 1, 1, 4, BIG_ENDIAN)) + assert_equal([+1, "\xF"], Bug::Bignum.test_pack((+0x0F), 1, 1, 4, BIG_ENDIAN)) + assert_equal([+2, "\x0"], Bug::Bignum.test_pack((+0x10), 1, 1, 4, BIG_ENDIAN)) + assert_equal([+2, "\x1"], Bug::Bignum.test_pack((+0x11), 1, 1, 4, BIG_ENDIAN)) + + assert_equal([-2, "\x01"], Bug::Bignum.test_pack((-0x101), 1, 1, 0, BIG_ENDIAN)) + assert_equal([-2, "\x00"], Bug::Bignum.test_pack((-0x100), 1, 1, 0, BIG_ENDIAN)) + assert_equal([-1, "\xFF"], Bug::Bignum.test_pack((-0x0FF), 1, 1, 0, BIG_ENDIAN)) + assert_equal([+1, "\xFF"], Bug::Bignum.test_pack((+0x0FF), 1, 1, 0, BIG_ENDIAN)) + assert_equal([+2, "\x00"], Bug::Bignum.test_pack((+0x100), 1, 1, 0, BIG_ENDIAN)) + assert_equal([+2, "\x01"], Bug::Bignum.test_pack((+0x101), 1, 1, 0, BIG_ENDIAN)) + + assert_equal([-2, "\x00\x00\x00\x00\x00\x00\x00\x01"], Bug::Bignum.test_pack((-0x10000000000000001), 2, 4, 0, BIG_ENDIAN)) + assert_equal([-2, "\x00\x00\x00\x00\x00\x00\x00\x00"], Bug::Bignum.test_pack((-0x10000000000000000), 2, 4, 0, BIG_ENDIAN)) + assert_equal([-1, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"], Bug::Bignum.test_pack((-0x0FFFFFFFFFFFFFFFF), 2, 4, 0, BIG_ENDIAN)) + assert_equal([+1, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"], Bug::Bignum.test_pack((+0x0FFFFFFFFFFFFFFFF), 2, 4, 0, BIG_ENDIAN)) + assert_equal([+2, "\x00\x00\x00\x00\x00\x00\x00\x00"], Bug::Bignum.test_pack((+0x10000000000000000), 2, 4, 0, BIG_ENDIAN)) + assert_equal([+2, "\x00\x00\x00\x00\x00\x00\x00\x01"], Bug::Bignum.test_pack((+0x10000000000000001), 2, 4, 0, BIG_ENDIAN)) + + 1.upto(16) {|wordsize| + 1.upto(20) {|numwords| + w = numwords*wordsize + n = 256**w + assert_equal([-2, "\x00"*(w-1)+"\x01"], Bug::Bignum.test_pack((-n-1), numwords, wordsize, 0, BIG_ENDIAN)) + assert_equal([-2, "\x00"*w], Bug::Bignum.test_pack((-n ), numwords, wordsize, 0, BIG_ENDIAN)) + assert_equal([-1, "\xFF"*w], Bug::Bignum.test_pack((-n+1), numwords, wordsize, 0, BIG_ENDIAN)) + assert_equal([+1, "\xFF"*w], Bug::Bignum.test_pack((+n-1), numwords, wordsize, 0, BIG_ENDIAN)) + assert_equal([+2, "\x00"*w], Bug::Bignum.test_pack((+n ), numwords, wordsize, 0, BIG_ENDIAN)) + assert_equal([+2, "\x00"*(w-1)+"\x01"], Bug::Bignum.test_pack((+n+1), numwords, wordsize, 0, BIG_ENDIAN)) } - end - - def test_pack_sign - assert_equal([-1, "\x01"], Bug::Bignum.test_pack((-1), 1, 1, 0, BIG_ENDIAN)) - assert_equal([-1, "\x80\x70\x60\x50\x40\x30\x20\x10"], Bug::Bignum.test_pack((-0x8070605040302010), 8, 1, 0, BIG_ENDIAN)) - end - - def test_pack_orders - [MSWORD_FIRST, LSWORD_FIRST].each {|word_order| - [MSBYTE_FIRST, LSBYTE_FIRST, NATIVE_BYTE_ORDER].each {|byte_order| - 1.upto(16) {|wordsize| - 1.upto(20) {|numwords| - w = numwords*wordsize - n = 0; - 0.upto(w) {|i| - n |= ((i+1) % 256) << (i*8) - } - assert_equal(Bug::Bignum.test_pack(n, numwords, wordsize, 0, word_order|byte_order|GENERIC), - Bug::Bignum.test_pack(n, numwords, wordsize, 0, word_order|byte_order), - "#{'%#x' % n}.test_pack(#{numwords}, #{wordsize}, 0, #{'%#x' % (word_order|byte_order)})") + } + + 1.upto(16) {|wordsize| + 1.upto(20) {|numwords| + w = numwords*wordsize + n = 256**w + assert_equal([-2, "\x01"+"\x00"*(w-1)], Bug::Bignum.test_pack((-n-1), numwords, wordsize, 0, LITTLE_ENDIAN)) + assert_equal([-2, "\x00"*w], Bug::Bignum.test_pack((-n ), numwords, wordsize, 0, LITTLE_ENDIAN)) + assert_equal([-1, "\xFF"*w], Bug::Bignum.test_pack((-n+1), numwords, wordsize, 0, LITTLE_ENDIAN)) + assert_equal([+1, "\xFF"*w], Bug::Bignum.test_pack((+n-1), numwords, wordsize, 0, LITTLE_ENDIAN)) + assert_equal([+2, "\x00"*w], Bug::Bignum.test_pack((+n ), numwords, wordsize, 0, LITTLE_ENDIAN)) + assert_equal([+2, "\x01"+"\x00"*(w-1)], Bug::Bignum.test_pack((+n+1), numwords, wordsize, 0, LITTLE_ENDIAN)) + } + } + end + + def test_pack_sign + assert_equal([-1, "\x01"], Bug::Bignum.test_pack((-1), 1, 1, 0, BIG_ENDIAN)) + assert_equal([-1, "\x80\x70\x60\x50\x40\x30\x20\x10"], Bug::Bignum.test_pack((-0x8070605040302010), 8, 1, 0, BIG_ENDIAN)) + end + + def test_pack_orders + [MSWORD_FIRST, LSWORD_FIRST].each {|word_order| + [MSBYTE_FIRST, LSBYTE_FIRST, NATIVE_BYTE_ORDER].each {|byte_order| + 1.upto(16) {|wordsize| + 1.upto(20) {|numwords| + w = numwords*wordsize + n = 0; + 0.upto(w) {|i| + n |= ((i+1) % 256) << (i*8) } + assert_equal(Bug::Bignum.test_pack(n, numwords, wordsize, 0, word_order|byte_order|GENERIC), + Bug::Bignum.test_pack(n, numwords, wordsize, 0, word_order|byte_order), + "#{'%#x' % n}.test_pack(#{numwords}, #{wordsize}, 0, #{'%#x' % (word_order|byte_order)})") } } } - end - - def test_pack2comp_zero - assert_equal([0, ""], Bug::Bignum.test_pack(0, 0, 1, 0, TWOCOMP|BIG_ENDIAN)) - end - - def test_pack2comp_emptybuf - assert_equal([-2, ""], Bug::Bignum.test_pack((-3), 0, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([-2, ""], Bug::Bignum.test_pack((-2), 0, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, ""], Bug::Bignum.test_pack((-1), 0, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([ 0, ""], Bug::Bignum.test_pack(0, 0, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, ""], Bug::Bignum.test_pack(1, 0, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, ""], Bug::Bignum.test_pack(2, 0, 1, 0, TWOCOMP|BIG_ENDIAN)) - end - - def test_pack2comp_nearly_zero - assert_equal([-1, "\xFE"], Bug::Bignum.test_pack((-2), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, "\xFF"], Bug::Bignum.test_pack((-1), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([ 0, "\x00"], Bug::Bignum.test_pack(0, 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+1, "\x01"], Bug::Bignum.test_pack(1, 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+1, "\x02"], Bug::Bignum.test_pack(2, 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - end - - def test_pack2comp_overflow - assert_equal([-2, "\xF"], Bug::Bignum.test_pack((-0x11), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, "\x0"], Bug::Bignum.test_pack((-0x10), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, "\x1"], Bug::Bignum.test_pack((-0x0F), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) - assert_equal([+1, "\xF"], Bug::Bignum.test_pack((+0x0F), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, "\x0"], Bug::Bignum.test_pack((+0x10), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, "\x1"], Bug::Bignum.test_pack((+0x11), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) - - assert_equal([-2, "\xFF"], Bug::Bignum.test_pack((-0x101), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, "\x00"], Bug::Bignum.test_pack((-0x100), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, "\x01"], Bug::Bignum.test_pack((-0x0FF), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+1, "\xFF"], Bug::Bignum.test_pack((+0x0FF), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, "\x00"], Bug::Bignum.test_pack((+0x100), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, "\x01"], Bug::Bignum.test_pack((+0x101), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - - assert_equal([-2, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"], Bug::Bignum.test_pack((-0x10000000000000001), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, "\x00\x00\x00\x00\x00\x00\x00\x00"], Bug::Bignum.test_pack((-0x10000000000000000), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, "\x00\x00\x00\x00\x00\x00\x00\x01"], Bug::Bignum.test_pack((-0x0FFFFFFFFFFFFFFFF), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+1, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"], Bug::Bignum.test_pack((+0x0FFFFFFFFFFFFFFFF), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, "\x00\x00\x00\x00\x00\x00\x00\x00"], Bug::Bignum.test_pack((+0x10000000000000000), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, "\x00\x00\x00\x00\x00\x00\x00\x01"], Bug::Bignum.test_pack((+0x10000000000000001), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) - - 1.upto(16) {|wordsize| - 1.upto(20) {|numwords| - w = numwords*wordsize - n = 256**w - assert_equal([-2, "\xFF"*w ], Bug::Bignum.test_pack((-n-1), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, "\x00"*w], Bug::Bignum.test_pack((-n ), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([-1, "\x00"*(w-1)+"\x01"], Bug::Bignum.test_pack((-n+1), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+1, "\xFF"*w], Bug::Bignum.test_pack((+n-1), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, "\x00"*w], Bug::Bignum.test_pack((+n ), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal([+2, "\x00"*(w-1)+"\x01"], Bug::Bignum.test_pack((+n+1), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) - } - } + } + end - 1.upto(16) {|wordsize| - 1.upto(20) {|numwords| - w = numwords*wordsize - n = 256**w - assert_equal([-2, "\xFF"*w ], Bug::Bignum.test_pack((-n-1), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) - assert_equal([-1, "\x00"*w], Bug::Bignum.test_pack((-n ), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) - assert_equal([-1, "\x01"+"\x00"*(w-1)], Bug::Bignum.test_pack((-n+1), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) - assert_equal([+1, "\xFF"*w], Bug::Bignum.test_pack((+n-1), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) - assert_equal([+2, "\x00"*w], Bug::Bignum.test_pack((+n ), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) - assert_equal([+2, "\x01"+"\x00"*(w-1)], Bug::Bignum.test_pack((+n+1), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) - } - } + def test_pack2comp_zero + assert_equal([0, ""], Bug::Bignum.test_pack(0, 0, 1, 0, TWOCOMP|BIG_ENDIAN)) + end - 2.upto(16) {|wordsize| - w = wordsize - b = 8*wordsize-1 - n = 2**b - assert_equal([-2, "\x7F"+"\xFF"*(w-2)+"\xFF"], Bug::Bignum.test_pack((-n-1), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) - assert_equal([-1, "\x00"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((-n ), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) - assert_equal([-1, "\x00"+"\x00"*(w-2)+"\x01"], Bug::Bignum.test_pack((-n+1), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) - assert_equal([+1, "\x7F"+"\xFF"*(w-2)+"\xFF"], Bug::Bignum.test_pack((+n-1), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) - assert_equal([+2, "\x00"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((+n ), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) - assert_equal([+2, "\x00"+"\x00"*(w-2)+"\x01"], Bug::Bignum.test_pack((+n+1), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) - } + def test_pack2comp_emptybuf + assert_equal([-2, ""], Bug::Bignum.test_pack((-3), 0, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([-2, ""], Bug::Bignum.test_pack((-2), 0, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, ""], Bug::Bignum.test_pack((-1), 0, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([ 0, ""], Bug::Bignum.test_pack(0, 0, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, ""], Bug::Bignum.test_pack(1, 0, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, ""], Bug::Bignum.test_pack(2, 0, 1, 0, TWOCOMP|BIG_ENDIAN)) + end - 2.upto(16) {|wordsize| - w = wordsize - b = 8*wordsize-1 - n = 2**b - assert_equal([-2, "\xFF"+"\xFF"*(w-2)+"\x7F"], Bug::Bignum.test_pack((-n-1), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) - assert_equal([-1, "\x00"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((-n ), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) - assert_equal([-1, "\x01"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((-n+1), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) - assert_equal([+1, "\xFF"+"\xFF"*(w-2)+"\x7F"], Bug::Bignum.test_pack((+n-1), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) - assert_equal([+2, "\x00"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((+n ), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) - assert_equal([+2, "\x01"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((+n+1), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) + def test_pack2comp_nearly_zero + assert_equal([-1, "\xFE"], Bug::Bignum.test_pack((-2), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, "\xFF"], Bug::Bignum.test_pack((-1), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([ 0, "\x00"], Bug::Bignum.test_pack(0, 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+1, "\x01"], Bug::Bignum.test_pack(1, 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+1, "\x02"], Bug::Bignum.test_pack(2, 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + end + + def test_pack2comp_overflow + assert_equal([-2, "\xF"], Bug::Bignum.test_pack((-0x11), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, "\x0"], Bug::Bignum.test_pack((-0x10), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, "\x1"], Bug::Bignum.test_pack((-0x0F), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) + assert_equal([+1, "\xF"], Bug::Bignum.test_pack((+0x0F), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, "\x0"], Bug::Bignum.test_pack((+0x10), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, "\x1"], Bug::Bignum.test_pack((+0x11), 1, 1, 4, TWOCOMP|BIG_ENDIAN)) + + assert_equal([-2, "\xFF"], Bug::Bignum.test_pack((-0x101), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, "\x00"], Bug::Bignum.test_pack((-0x100), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, "\x01"], Bug::Bignum.test_pack((-0x0FF), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+1, "\xFF"], Bug::Bignum.test_pack((+0x0FF), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, "\x00"], Bug::Bignum.test_pack((+0x100), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, "\x01"], Bug::Bignum.test_pack((+0x101), 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + + assert_equal([-2, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"], Bug::Bignum.test_pack((-0x10000000000000001), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, "\x00\x00\x00\x00\x00\x00\x00\x00"], Bug::Bignum.test_pack((-0x10000000000000000), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, "\x00\x00\x00\x00\x00\x00\x00\x01"], Bug::Bignum.test_pack((-0x0FFFFFFFFFFFFFFFF), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+1, "\xFF\xFF\xFF\xFF\xFF\xFF\xFF\xFF"], Bug::Bignum.test_pack((+0x0FFFFFFFFFFFFFFFF), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, "\x00\x00\x00\x00\x00\x00\x00\x00"], Bug::Bignum.test_pack((+0x10000000000000000), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, "\x00\x00\x00\x00\x00\x00\x00\x01"], Bug::Bignum.test_pack((+0x10000000000000001), 2, 4, 0, TWOCOMP|BIG_ENDIAN)) + + 1.upto(16) {|wordsize| + 1.upto(20) {|numwords| + w = numwords*wordsize + n = 256**w + assert_equal([-2, "\xFF"*w ], Bug::Bignum.test_pack((-n-1), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, "\x00"*w], Bug::Bignum.test_pack((-n ), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([-1, "\x00"*(w-1)+"\x01"], Bug::Bignum.test_pack((-n+1), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+1, "\xFF"*w], Bug::Bignum.test_pack((+n-1), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, "\x00"*w], Bug::Bignum.test_pack((+n ), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal([+2, "\x00"*(w-1)+"\x01"], Bug::Bignum.test_pack((+n+1), numwords, wordsize, 0, TWOCOMP|BIG_ENDIAN)) } + } + + 1.upto(16) {|wordsize| + 1.upto(20) {|numwords| + w = numwords*wordsize + n = 256**w + assert_equal([-2, "\xFF"*w ], Bug::Bignum.test_pack((-n-1), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) + assert_equal([-1, "\x00"*w], Bug::Bignum.test_pack((-n ), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) + assert_equal([-1, "\x01"+"\x00"*(w-1)], Bug::Bignum.test_pack((-n+1), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) + assert_equal([+1, "\xFF"*w], Bug::Bignum.test_pack((+n-1), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) + assert_equal([+2, "\x00"*w], Bug::Bignum.test_pack((+n ), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) + assert_equal([+2, "\x01"+"\x00"*(w-1)], Bug::Bignum.test_pack((+n+1), numwords, wordsize, 0, TWOCOMP|LITTLE_ENDIAN)) + } + } + + 2.upto(16) {|wordsize| + w = wordsize + b = 8*wordsize-1 + n = 2**b + assert_equal([-2, "\x7F"+"\xFF"*(w-2)+"\xFF"], Bug::Bignum.test_pack((-n-1), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) + assert_equal([-1, "\x00"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((-n ), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) + assert_equal([-1, "\x00"+"\x00"*(w-2)+"\x01"], Bug::Bignum.test_pack((-n+1), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) + assert_equal([+1, "\x7F"+"\xFF"*(w-2)+"\xFF"], Bug::Bignum.test_pack((+n-1), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) + assert_equal([+2, "\x00"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((+n ), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) + assert_equal([+2, "\x00"+"\x00"*(w-2)+"\x01"], Bug::Bignum.test_pack((+n+1), 1, wordsize, 1, TWOCOMP|MSBYTE_FIRST)) + } + + 2.upto(16) {|wordsize| + w = wordsize + b = 8*wordsize-1 + n = 2**b + assert_equal([-2, "\xFF"+"\xFF"*(w-2)+"\x7F"], Bug::Bignum.test_pack((-n-1), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) + assert_equal([-1, "\x00"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((-n ), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) + assert_equal([-1, "\x01"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((-n+1), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) + assert_equal([+1, "\xFF"+"\xFF"*(w-2)+"\x7F"], Bug::Bignum.test_pack((+n-1), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) + assert_equal([+2, "\x00"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((+n ), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) + assert_equal([+2, "\x01"+"\x00"*(w-2)+"\x00"], Bug::Bignum.test_pack((+n+1), 1, wordsize, 1, TWOCOMP|LSBYTE_FIRST)) + } + + end + + def test_unpack_zero + assert_equal(0, Bug::Bignum.test_unpack("", 0, 1, 0, BIG_ENDIAN)) + end + + def test_unpack_argument_check + assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 2, 1, 0, MSBYTE_FIRST) } + assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 1, 1, 0, MSWORD_FIRST) } + assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 1, 0, 0, BIG_ENDIAN) } + assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 1, 1, 8, BIG_ENDIAN) } + + # assume sizeof(ssize_t) == sizeof(intptr_t) + assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 1, 1 << ([""].pack("p").length * 8 - 1), 0, BIG_ENDIAN) } + end + + def test_unpack_wordsize + assert_equal(1, Bug::Bignum.test_unpack("\x01", 1, 1, 0, BIG_ENDIAN)) + assert_equal(1, Bug::Bignum.test_unpack("\x00\x01", 1, 2, 0, BIG_ENDIAN)) + assert_equal(1, Bug::Bignum.test_unpack("\x00\x00\x01", 1, 3, 0, BIG_ENDIAN)) + assert_equal(1, Bug::Bignum.test_unpack("\x01", 1, 1, 0, LITTLE_ENDIAN)) + assert_equal(1, Bug::Bignum.test_unpack("\x01\x00", 1, 2, 0, LITTLE_ENDIAN)) + assert_equal(1, Bug::Bignum.test_unpack("\x01\x00\x00", 1, 3, 0, LITTLE_ENDIAN)) + end + + def test_unpack_wordorder_and_endian + assert_equal(0x01020304, Bug::Bignum.test_unpack("\x01\x02\x03\x04", 2, 2, 0, MSWORD_FIRST|MSBYTE_FIRST)) + assert_equal(0x02010403, Bug::Bignum.test_unpack("\x01\x02\x03\x04", 2, 2, 0, MSWORD_FIRST|LSBYTE_FIRST)) + assert_equal(0x03040102, Bug::Bignum.test_unpack("\x01\x02\x03\x04", 2, 2, 0, LSWORD_FIRST|MSBYTE_FIRST)) + assert_equal(0x04030201, Bug::Bignum.test_unpack("\x01\x02\x03\x04", 2, 2, 0, LSWORD_FIRST|LSBYTE_FIRST)) + end + + def test_unpack_native_endian + assert_equal("\x12\x34".unpack("S!")[0], Bug::Bignum.test_unpack("\x12\x34", 1, 2, 0, MSWORD_FIRST|NATIVE_BYTE_ORDER)) + end + + def test_unpack_nail + assert_equal(0b100011, Bug::Bignum.test_unpack("\x01\x00\x00\x00\x01\x01", 6, 1, 7, BIG_ENDIAN)) + assert_equal(0x12345678, Bug::Bignum.test_unpack("\x01\x02\x03\x04\x05\x06\x07\x08", 8, 1, 4, BIG_ENDIAN)) + assert_equal(0x12345678, Bug::Bignum.test_unpack("\x00\x12\x00\x34\x00\x56\x00\x78", 4, 2, 8, BIG_ENDIAN)) + end + + def test_unpack_sign + assert_equal(-1, Bug::Bignum.test_unpack("\x01", 1, 1, 0, BIG_ENDIAN|NEGATIVE)) + assert_equal(-0x8070605040302010, Bug::Bignum.test_unpack("\x80\x70\x60\x50\x40\x30\x20\x10", 8, 1, 0, BIG_ENDIAN|NEGATIVE)) + end - end - - def test_unpack_zero - assert_equal(0, Bug::Bignum.test_unpack("", 0, 1, 0, BIG_ENDIAN)) - end - - def test_unpack_argument_check - assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 2, 1, 0, MSBYTE_FIRST) } - assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 1, 1, 0, MSWORD_FIRST) } - assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 1, 0, 0, BIG_ENDIAN) } - assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 1, 1, 8, BIG_ENDIAN) } - - # assume sizeof(ssize_t) == sizeof(intptr_t) - assert_raise(ArgumentError) { Bug::Bignum.test_unpack("x", 1, 1 << ([""].pack("p").length * 8 - 1), 0, BIG_ENDIAN) } - end - - def test_unpack_wordsize - assert_equal(1, Bug::Bignum.test_unpack("\x01", 1, 1, 0, BIG_ENDIAN)) - assert_equal(1, Bug::Bignum.test_unpack("\x00\x01", 1, 2, 0, BIG_ENDIAN)) - assert_equal(1, Bug::Bignum.test_unpack("\x00\x00\x01", 1, 3, 0, BIG_ENDIAN)) - assert_equal(1, Bug::Bignum.test_unpack("\x01", 1, 1, 0, LITTLE_ENDIAN)) - assert_equal(1, Bug::Bignum.test_unpack("\x01\x00", 1, 2, 0, LITTLE_ENDIAN)) - assert_equal(1, Bug::Bignum.test_unpack("\x01\x00\x00", 1, 3, 0, LITTLE_ENDIAN)) - end - - def test_unpack_wordorder_and_endian - assert_equal(0x01020304, Bug::Bignum.test_unpack("\x01\x02\x03\x04", 2, 2, 0, MSWORD_FIRST|MSBYTE_FIRST)) - assert_equal(0x02010403, Bug::Bignum.test_unpack("\x01\x02\x03\x04", 2, 2, 0, MSWORD_FIRST|LSBYTE_FIRST)) - assert_equal(0x03040102, Bug::Bignum.test_unpack("\x01\x02\x03\x04", 2, 2, 0, LSWORD_FIRST|MSBYTE_FIRST)) - assert_equal(0x04030201, Bug::Bignum.test_unpack("\x01\x02\x03\x04", 2, 2, 0, LSWORD_FIRST|LSBYTE_FIRST)) - end - - def test_unpack_native_endian - assert_equal("\x12\x34".unpack("S!")[0], Bug::Bignum.test_unpack("\x12\x34", 1, 2, 0, MSWORD_FIRST|NATIVE_BYTE_ORDER)) - end - - def test_unpack_nail - assert_equal(0b100011, Bug::Bignum.test_unpack("\x01\x00\x00\x00\x01\x01", 6, 1, 7, BIG_ENDIAN)) - assert_equal(0x12345678, Bug::Bignum.test_unpack("\x01\x02\x03\x04\x05\x06\x07\x08", 8, 1, 4, BIG_ENDIAN)) - assert_equal(0x12345678, Bug::Bignum.test_unpack("\x00\x12\x00\x34\x00\x56\x00\x78", 4, 2, 8, BIG_ENDIAN)) - end - - def test_unpack_sign - assert_equal(-1, Bug::Bignum.test_unpack("\x01", 1, 1, 0, BIG_ENDIAN|NEGATIVE)) - assert_equal(-0x8070605040302010, Bug::Bignum.test_unpack("\x80\x70\x60\x50\x40\x30\x20\x10", 8, 1, 0, BIG_ENDIAN|NEGATIVE)) - end - - def test_unpack_orders - [MSWORD_FIRST, LSWORD_FIRST].each {|word_order| - [MSBYTE_FIRST, LSBYTE_FIRST, NATIVE_BYTE_ORDER].each {|byte_order| - 1.upto(16) {|wordsize| - 1.upto(20) {|numwords| - w = numwords*wordsize - ary = [] - 0.upto(w) {|i| - ary << ((i+1) % 256); - } - str = ary.pack("C*") - flags = word_order|byte_order - assert_equal(Bug::Bignum.test_unpack(str, numwords, wordsize, 0, flags|GENERIC), - Bug::Bignum.test_unpack(str, numwords, wordsize, 0, flags), - "Bug::Bignum.test_unpack(#{str.dump}, #{numwords}, #{wordsize}, 0, #{'%#x' % flags})") + def test_unpack_orders + [MSWORD_FIRST, LSWORD_FIRST].each {|word_order| + [MSBYTE_FIRST, LSBYTE_FIRST, NATIVE_BYTE_ORDER].each {|byte_order| + 1.upto(16) {|wordsize| + 1.upto(20) {|numwords| + w = numwords*wordsize + ary = [] + 0.upto(w) {|i| + ary << ((i+1) % 256); } + str = ary.pack("C*") + flags = word_order|byte_order + assert_equal(Bug::Bignum.test_unpack(str, numwords, wordsize, 0, flags|GENERIC), + Bug::Bignum.test_unpack(str, numwords, wordsize, 0, flags), + "Bug::Bignum.test_unpack(#{str.dump}, #{numwords}, #{wordsize}, 0, #{'%#x' % flags})") } } } - end - - def test_unpack2comp_single_byte - assert_equal(-128, Bug::Bignum.test_unpack("\x80", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal( -2, Bug::Bignum.test_unpack("\xFE", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal( -1, Bug::Bignum.test_unpack("\xFF", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal( 0, Bug::Bignum.test_unpack("\x00", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal( 1, Bug::Bignum.test_unpack("\x01", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal( 2, Bug::Bignum.test_unpack("\x02", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal( 127, Bug::Bignum.test_unpack("\x7F", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) - end - - def test_unpack2comp_sequence_of_ff - assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*2, 2, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*3, 3, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*4, 4, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*5, 5, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*6, 6, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*7, 7, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*8, 8, 1, 0, TWOCOMP|BIG_ENDIAN)) - assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*9, 9, 1, 0, TWOCOMP|BIG_ENDIAN)) - end - - def test_unpack2comp_negative_single_byte - assert_equal(-256, Bug::Bignum.test_unpack("\x00", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) - assert_equal(-255, Bug::Bignum.test_unpack("\x01", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) - assert_equal(-254, Bug::Bignum.test_unpack("\x02", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) - assert_equal(-129, Bug::Bignum.test_unpack("\x7F", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) - assert_equal(-128, Bug::Bignum.test_unpack("\x80", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) - assert_equal( -2, Bug::Bignum.test_unpack("\xFE", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) - assert_equal( -1, Bug::Bignum.test_unpack("\xFF", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) - end - - def test_unpack2comp_negative_zero - 0.upto(100) {|n| - str = "\x00"*n - flags = TWOCOMP|BIG_ENDIAN|NEGATIVE - assert_equal(-(256**n), Bug::Bignum.test_unpack(str, n, 1, 0, flags)) - flags = TWOCOMP|LITTLE_ENDIAN|NEGATIVE - assert_equal(-(256**n), Bug::Bignum.test_unpack(str, n, 1, 0, flags), - "Bug::Bignum.test_unpack(#{str.dump}, #{n}, 1, 0, #{'%#x' % flags})") - } - end + } + end + + def test_unpack2comp_single_byte + assert_equal(-128, Bug::Bignum.test_unpack("\x80", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal( -2, Bug::Bignum.test_unpack("\xFE", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal( -1, Bug::Bignum.test_unpack("\xFF", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal( 0, Bug::Bignum.test_unpack("\x00", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal( 1, Bug::Bignum.test_unpack("\x01", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal( 2, Bug::Bignum.test_unpack("\x02", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal( 127, Bug::Bignum.test_unpack("\x7F", 1, 1, 0, TWOCOMP|BIG_ENDIAN)) + end + + def test_unpack2comp_sequence_of_ff + assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*2, 2, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*3, 3, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*4, 4, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*5, 5, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*6, 6, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*7, 7, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*8, 8, 1, 0, TWOCOMP|BIG_ENDIAN)) + assert_equal(-1, Bug::Bignum.test_unpack("\xFF"*9, 9, 1, 0, TWOCOMP|BIG_ENDIAN)) + end + + def test_unpack2comp_negative_single_byte + assert_equal(-256, Bug::Bignum.test_unpack("\x00", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) + assert_equal(-255, Bug::Bignum.test_unpack("\x01", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) + assert_equal(-254, Bug::Bignum.test_unpack("\x02", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) + assert_equal(-129, Bug::Bignum.test_unpack("\x7F", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) + assert_equal(-128, Bug::Bignum.test_unpack("\x80", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) + assert_equal( -2, Bug::Bignum.test_unpack("\xFE", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) + assert_equal( -1, Bug::Bignum.test_unpack("\xFF", 1, 1, 0, TWOCOMP|BIG_ENDIAN|NEGATIVE)) + end + + def test_unpack2comp_negative_zero + 0.upto(100) {|n| + str = "\x00"*n + flags = TWOCOMP|BIG_ENDIAN|NEGATIVE + assert_equal(-(256**n), Bug::Bignum.test_unpack(str, n, 1, 0, flags)) + flags = TWOCOMP|LITTLE_ENDIAN|NEGATIVE + assert_equal(-(256**n), Bug::Bignum.test_unpack(str, n, 1, 0, flags), + "Bug::Bignum.test_unpack(#{str.dump}, #{n}, 1, 0, #{'%#x' % flags})") + } end def test_numbits_2comp @@ -395,5 +393,4 @@ class Test_Bignum < Test::Unit::TestCase assert_equal(5, Bug::Bignum.test_numbytes_2comp_with_sign(0x7fffffffff)) assert_equal(6, Bug::Bignum.test_numbytes_2comp_with_sign(0x8000000000)) end - end diff --git a/test/-ext-/bignum/test_str2big.rb b/test/-ext-/bignum/test_str2big.rb index d5bd72a85b..d27e4d23f7 100644 --- a/test/-ext-/bignum/test_str2big.rb +++ b/test/-ext-/bignum/test_str2big.rb @@ -2,37 +2,35 @@ require 'test/unit' require "-test-/bignum" -class Test_Bignum < Test::Unit::TestCase - class TestStr2big < Test::Unit::TestCase +class TestBignum_Str2big < Test::Unit::TestCase - SIZEOF_BDIGIT = Bug::Bignum::SIZEOF_BDIGIT - BITSPERDIG = Bug::Bignum::BITSPERDIG - BDIGMAX = (1 << BITSPERDIG) - 1 + SIZEOF_BDIGIT = Bug::Bignum::SIZEOF_BDIGIT + BITSPERDIG = Bug::Bignum::BITSPERDIG + BDIGMAX = (1 << BITSPERDIG) - 1 - def test_str2big_poweroftwo - s = "1" + "0" * 1000 - n = 16 ** 1000 - assert_equal(n, Bug::Bignum.str2big_poweroftwo(s, 16, true)) - end - - def test_str2big_normal - s = "1" + "0" * 1000 - n = 10 ** 1000 - assert_equal(n, Bug::Bignum.str2big_normal(s, 10, true)) - end + def test_str2big_poweroftwo + s = "1" + "0" * 1000 + n = 16 ** 1000 + assert_equal(n, Bug::Bignum.str2big_poweroftwo(s, 16, true)) + end - def test_str2big_karatsuba - s = "1" + "0" * 1000 - n = 10 ** 1000 - assert_equal(n, Bug::Bignum.str2big_karatsuba(s, 10, true)) - end + def test_str2big_normal + s = "1" + "0" * 1000 + n = 10 ** 1000 + assert_equal(n, Bug::Bignum.str2big_normal(s, 10, true)) + end - def test_str2big_gmp - s = "1" + "0" * 1000 - n = 10 ** 1000 - assert_equal(n, Bug::Bignum.str2big_gmp(s, 10, true)) - rescue NotImplementedError - end + def test_str2big_karatsuba + s = "1" + "0" * 1000 + n = 10 ** 1000 + assert_equal(n, Bug::Bignum.str2big_karatsuba(s, 10, true)) + end + def test_str2big_gmp + s = "1" + "0" * 1000 + n = 10 ** 1000 + assert_equal(n, Bug::Bignum.str2big_gmp(s, 10, true)) + rescue NotImplementedError end + end |