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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-12-05 09:39:25 +0000
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2007-12-05 09:39:25 +0000
commit7cee87c6f24dd9631970dacdb0b97a90ed0a1b01 (patch)
tree50d4fa772fa725fa62cdf0cb6ceb56c4ccabe897
parent89dac0bc8cf7c40e0ddb626a4af5b3782905265d (diff)
new file.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_8@14112 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-rw-r--r--test/ruby/test_integer.rb649
1 files changed, 649 insertions, 0 deletions
diff --git a/test/ruby/test_integer.rb b/test/ruby/test_integer.rb
new file mode 100644
index 0000000..b2042b0
--- /dev/null
+++ b/test/ruby/test_integer.rb
@@ -0,0 +1,649 @@
+require 'test/unit'
+
+class TestInteger < Test::Unit::TestCase
+ VS = [
+ -0x1000000000000000000000000000000000000000000000002,
+ -0x1000000000000000000000000000000000000000000000001,
+ -0x1000000000000000000000000000000000000000000000000,
+ -0xffffffffffffffffffffffffffffffffffffffffffffffff,
+ -0x1000000000000000000000002,
+ -0x1000000000000000000000001,
+ -0x1000000000000000000000000,
+ -0xffffffffffffffffffffffff,
+ -0x10000000000000002,
+ -0x10000000000000001,
+ -0x10000000000000000,
+ -0xffffffffffffffff,
+ -0x4000000000000002,
+ -0x4000000000000001,
+ -0x4000000000000000,
+ -0x3fffffffffffffff,
+ -0x100000002,
+ -0x100000001,
+ -0x100000000,
+ -0xffffffff,
+ -0xc717a08d, # 0xc717a08d * 0x524b2245 = 0x4000000000000001
+ -0x80000002,
+ -0x80000001,
+ -0x80000000,
+ -0x7fffffff,
+ -0x524b2245,
+ -0x40000002,
+ -0x40000001,
+ -0x40000000,
+ -0x3fffffff,
+ -0x10002,
+ -0x10001,
+ -0x10000,
+ -0xffff,
+ -0x8101, # 0x8101 * 0x7f01 = 0x40000001
+ -0x8002,
+ -0x8001,
+ -0x8000,
+ -0x7fff,
+ -0x7f01,
+ -65,
+ -64,
+ -63,
+ -62,
+ -33,
+ -32,
+ -31,
+ -30,
+ -3,
+ -2,
+ -1,
+ 0,
+ 1,
+ 2,
+ 3,
+ 30,
+ 31,
+ 32,
+ 33,
+ 62,
+ 63,
+ 64,
+ 65,
+ 0x7f01,
+ 0x7ffe,
+ 0x7fff,
+ 0x8000,
+ 0x8001,
+ 0x8101,
+ 0xfffe,
+ 0xffff,
+ 0x10000,
+ 0x10001,
+ 0x3ffffffe,
+ 0x3fffffff,
+ 0x40000000,
+ 0x40000001,
+ 0x524b2245,
+ 0x7ffffffe,
+ 0x7fffffff,
+ 0x80000000,
+ 0x80000001,
+ 0xc717a08d,
+ 0xfffffffe,
+ 0xffffffff,
+ 0x100000000,
+ 0x100000001,
+ 0x3ffffffffffffffe,
+ 0x3fffffffffffffff,
+ 0x4000000000000000,
+ 0x4000000000000001,
+ 0xfffffffffffffffe,
+ 0xffffffffffffffff,
+ 0x10000000000000000,
+ 0x10000000000000001,
+ 0xffffffffffffffffffffffff,
+ 0x1000000000000000000000000,
+ 0x1000000000000000000000001,
+ 0xffffffffffffffffffffffffffffffffffffffffffffffff,
+ 0x1000000000000000000000000000000000000000000000000,
+ 0x1000000000000000000000000000000000000000000000001
+ ]
+
+ #VS.map! {|v| 0x4000000000000000.coerce(v)[0] }
+
+ BDSIZE = 0x4000000000000000.coerce(0)[0].size
+ def self.bdsize(x)
+ ((x + 1) / 8 + BDSIZE) / BDSIZE * BDSIZE
+ end
+ def bdsize(x)
+ self.class.bdsize(x)
+ end
+
+ min = -1
+ min *= 2 while min.class == Fixnum
+ FIXNUM_MIN = min/2
+ max = 1
+ max *= 2 while (max-1).class == Fixnum
+ FIXNUM_MAX = max/2-1
+
+ def test_fixnum_range
+ assert_instance_of(Bignum, FIXNUM_MIN-1)
+ assert_instance_of(Fixnum, FIXNUM_MIN)
+ assert_instance_of(Fixnum, FIXNUM_MAX)
+ assert_instance_of(Bignum, FIXNUM_MAX+1)
+ end
+
+ def check_class(n)
+ if FIXNUM_MIN <= n && n <= FIXNUM_MAX
+ assert_instance_of(Fixnum, n)
+ else
+ assert_instance_of(Bignum, n)
+ end
+ end
+
+ def test_aref
+ VS.each {|a|
+ 100.times {|i|
+ assert_equal((a >> i).odd? ? 1 : 0, a[i], "(#{a})[#{i}]")
+ }
+ }
+ VS.each {|a|
+ VS.each {|b|
+ c = nil
+ assert_nothing_raised("(#{a})[#{b}]") { c = a[b] }
+ check_class(c)
+ if b < 0
+ assert_equal(0, c, "(#{a})[#{b}]")
+ else
+ assert_equal((a >> b).odd? ? 1 : 0, c, "(#{a})[#{b}]")
+ end
+ }
+ }
+
+ # assert_equal(1, (1 << 0x40000000)[0x40000000], "[ruby-dev:31271]")
+ # assert_equal(0, (-1 << 0x40000001)[0x40000000], "[ruby-dev:31271]")
+ big_zero = 0x40000000.coerce(0)[0]
+ assert_equal(0, (-0x40000002)[big_zero], "[ruby-dev:31271]")
+ assert_equal(1, 0x400000001[big_zero], "[ruby-dev:31271]")
+ end
+
+ def test_plus
+ VS.each {|a|
+ VS.each {|b|
+ c = a + b
+ check_class(c)
+ assert_equal(b + a, c, "#{a} + #{b}")
+ assert_equal(a, c - b, "(#{a} + #{b}) - #{b}")
+ assert_equal(a-~b-1, c, "#{a} + #{b}") # Hacker's Delight
+ assert_equal((a^b)+2*(a&b), c, "#{a} + #{b}") # Hacker's Delight
+ assert_equal((a|b)+(a&b), c, "#{a} + #{b}") # Hacker's Delight
+ assert_equal(2*(a|b)-(a^b), c, "#{a} + #{b}") # Hacker's Delight
+ }
+ }
+ end
+
+ def test_minus
+ VS.each {|a|
+ VS.each {|b|
+ c = a - b
+ check_class(c)
+ assert_equal(a, c + b, "(#{a} - #{b}) + #{b}")
+ assert_equal(-b, c - a, "(#{a} - #{b}) - #{a}")
+ assert_equal(a+~b+1, c, "#{a} - #{b}") # Hacker's Delight
+ assert_equal((a^b)-2*(b&~a), c, "#{a} - #{b}") # Hacker's Delight
+ assert_equal((a&~b)-(b&~a), c, "#{a} - #{b}") # Hacker's Delight
+ assert_equal(2*(a&~b)-(a^b), c, "#{a} - #{b}") # Hacker's Delight
+ }
+ }
+ end
+
+ def test_mult
+ VS.each {|a|
+ VS.each {|b|
+ c = a * b
+ check_class(c)
+ assert_equal(b * a, c, "#{a} * #{b}")
+ assert_equal(b, c / a, "(#{a} * #{b}) / #{a}") if a != 0
+ assert_equal(a.abs * b.abs, (a * b).abs, "(#{a} * #{b}).abs")
+ assert_equal((a-100)*(b-100)+(a-100)*100+(b-100)*100+10000, c, "#{a} * #{b}")
+ assert_equal((a+100)*(b+100)-(a+100)*100-(b+100)*100+10000, c, "#{a} * #{b}")
+ }
+ }
+ end
+
+ def test_divmod
+ VS.each {|a|
+ VS.each {|b|
+ if b == 0
+ assert_raise(ZeroDivisionError) { a.divmod(b) }
+ else
+ q, r = a.divmod(b)
+ check_class(q)
+ check_class(r)
+ assert_equal(a, b*q+r)
+ assert(r.abs < b.abs)
+ assert(0 < b ? (0 <= r && r < b) : (b < r && r <= 0))
+ assert_equal(q, a/b)
+ assert_equal(q, a.div(b))
+ assert_equal(r, a%b)
+ assert_equal(r, a.modulo(b))
+ end
+ }
+ }
+ end
+
+ def test_pow
+ small_values = VS.find_all {|v| 0 <= v && v < 1000 }
+ VS.each {|a|
+ small_values.each {|b|
+ c = a ** b
+ check_class(c)
+ d = 1
+ b.times { d *= a }
+ assert_equal(d, c, "(#{a}) ** #{b}")
+ if a != 0
+ d = c
+ b.times { d /= a }
+ assert_equal(1, d, "((#{a}) ** #{b}) / #{a} / ...(#{b} times)...")
+ end
+ }
+ }
+
+ assert_equal(0**-1 == 0, false)
+ end
+
+ def test_not
+ VS.each {|a|
+ b = ~a
+ check_class(b)
+ assert_equal(-1 ^ a, b, "~#{a}")
+ assert_equal(-a-1, b, "~#{a}") # Hacker's Delight
+ assert_equal(0, a & b, "#{a} & ~#{a}")
+ assert_equal(-1, a | b, "#{a} | ~#{a}")
+ }
+ end
+
+ def test_or
+ VS.each {|a|
+ VS.each {|b|
+ c = a | b
+ check_class(c)
+ assert_equal(b | a, c, "#{a} | #{b}")
+ assert_equal(a + b - (a&b), c, "#{a} | #{b}")
+ assert_equal((a & ~b) + b, c, "#{a} | #{b}") # Hacker's Delight
+ assert_equal(-1, c | ~a, "(#{a} | #{b}) | ~#{a})")
+ }
+ }
+ end
+
+ def test_and
+ VS.each {|a|
+ VS.each {|b|
+ c = a & b
+ check_class(c)
+ assert_equal(b & a, c, "#{a} & #{b}")
+ assert_equal(a + b - (a|b), c, "#{a} & #{b}")
+ assert_equal((~a | b) - ~a, c, "#{a} & #{b}") # Hacker's Delight
+ assert_equal(0, c & ~a, "(#{a} & #{b}) & ~#{a}")
+ }
+ }
+ end
+
+ def test_xor
+ VS.each {|a|
+ VS.each {|b|
+ c = a ^ b
+ check_class(c)
+ assert_equal(b ^ a, c, "#{a} ^ #{b}")
+ assert_equal((a|b)-(a&b), c, "#{a} ^ #{b}") # Hacker's Delight
+ assert_equal(b, c ^ a, "(#{a} ^ #{b}) ^ #{a}")
+ }
+ }
+ end
+
+ def test_lshift
+ small_values = VS.find_all {|v| v < 8000 }
+ VS.each {|a|
+ small_values.each {|b|
+ c = a << b
+ check_class(c)
+ if 0 <= b
+ assert_equal(a, c >> b, "(#{a} << #{b}) >> #{b}")
+ assert_equal(a * 2**b, c, "#{a} << #{b}")
+ end
+ 0.upto(c.size*8+10) {|nth|
+ assert_equal(a[nth-b], c[nth], "(#{a} << #{b})[#{nth}]")
+ }
+ }
+ }
+ assert_equal(0, 1 << -0x40000000)
+ assert_equal(0, 1 << -0x40000001)
+ assert_equal(0, 1 << -0x80000000)
+ assert_equal(0, 1 << -0x80000001)
+ # assert_equal(bdsize(0x80000000), (1 << 0x80000000).size)
+ end
+
+ def test_rshift
+ small_values = VS.find_all {|v| -8000 < v }
+ VS.each {|a|
+ small_values.each {|b|
+ c = a >> b
+ check_class(c)
+ if b <= 0
+ assert_equal(a, c << b, "(#{a} >> #{b}) << #{b}")
+ assert_equal(a * 2**(-b), c, "#{a} >> #{b}")
+ end
+ 0.upto(c.size*8+10) {|nth|
+ assert_equal(a[nth+b], c[nth], "(#{a} >> #{b})[#{nth}]")
+ }
+ }
+ }
+ # assert_equal(bdsize(0x40000001), (1 >> -0x40000001).size)
+ assert((1 >> 0x80000000).zero?)
+ assert((1 >> 0xffffffff).zero?)
+ assert((1 >> 0x100000000).zero?)
+ # assert_equal((1 << 0x40000000), (1 >> -0x40000000))
+ # assert_equal((1 << 0x40000001), (1 >> -0x40000001))
+ end
+
+ def test_succ
+ VS.each {|a|
+ b = a.succ
+ check_class(b)
+ assert_equal(a+1, b, "(#{a}).succ")
+ assert_equal(a, b.pred, "(#{a}).succ.pred")
+ assert_equal(a, b-1, "(#{a}).succ - 1")
+ }
+ end
+
+ def test_pred
+ VS.each {|a|
+ b = a.pred
+ check_class(b)
+ assert_equal(a-1, b, "(#{a}).pred")
+ assert_equal(a, b.succ, "(#{a}).pred.succ")
+ assert_equal(a, b + 1, "(#{a}).pred + 1")
+ }
+ end
+
+ def test_unary_plus
+ VS.each {|a|
+ b = +a
+ check_class(b)
+ assert_equal(a, b, "+(#{a})")
+ }
+ end
+
+ def test_unary_minus
+ VS.each {|a|
+ b = -a
+ check_class(b)
+ assert_equal(0-a, b, "-(#{a})")
+ assert_equal(~a+1, b, "-(#{a})")
+ assert_equal(0, a+b, "#{a}+(-(#{a}))")
+ }
+ end
+
+ def test_cmp
+ VS.each_with_index {|a, i|
+ VS.each_with_index {|b, j|
+ assert_equal(i <=> j, a <=> b, "#{a} <=> #{b}")
+ assert_equal(i < j, a < b, "#{a} < #{b}")
+ assert_equal(i <= j, a <= b, "#{a} <= #{b}")
+ assert_equal(i > j, a > b, "#{a} > #{b}")
+ assert_equal(i >= j, a >= b, "#{a} >= #{b}")
+ }
+ }
+ end
+
+ def test_eq
+ VS.each_with_index {|a, i|
+ VS.each_with_index {|b, j|
+ c = a == b
+ assert_equal(b == a, c, "#{a} == #{b}")
+ assert_equal(i == j, c, "#{a} == #{b}")
+ }
+ }
+ end
+
+ def test_abs
+ VS.each {|a|
+ b = a.abs
+ check_class(b)
+ if a < 0
+ assert_equal(-a, b, "(#{a}).abs")
+ else
+ assert_equal(a, b, "(#{a}).abs")
+ end
+ }
+ end
+
+ def test_ceil
+ VS.each {|a|
+ b = a.ceil
+ check_class(b)
+ assert_equal(a, b, "(#{a}).ceil")
+ }
+ end
+
+ def test_floor
+ VS.each {|a|
+ b = a.floor
+ check_class(b)
+ assert_equal(a, b, "(#{a}).floor")
+ }
+ end
+
+ def test_round
+ VS.each {|a|
+ b = a.round
+ check_class(b)
+ assert_equal(a, b, "(#{a}).round")
+ }
+ end
+
+ def test_truncate
+ VS.each {|a|
+ b = a.truncate
+ check_class(b)
+ assert_equal(a, b, "(#{a}).truncate")
+ }
+ end
+
+ def test_remainder
+ VS.each {|a|
+ VS.each {|b|
+ if b == 0
+ assert_raise(ZeroDivisionError) { a.divmod(b) }
+ else
+ r = a.remainder(b)
+ check_class(r)
+ if a < 0
+ assert_operator(-b.abs, :<, r, "#{a}.remainder(#{b})")
+ assert_operator(0, :>=, r, "#{a}.remainder(#{b})")
+ elsif 0 < a
+ assert_operator(0, :<=, r, "#{a}.remainder(#{b})")
+ assert_operator(b.abs, :>, r, "#{a}.remainder(#{b})")
+ else
+ assert_equal(0, r, "#{a}.remainder(#{b})")
+ end
+ end
+ }
+ }
+ end
+
+ def test_zero_nonzero
+ VS.each {|a|
+ z = a.zero?
+ n = a.nonzero?
+ if a == 0
+ assert_equal(true, z, "(#{a}).zero?")
+ assert_equal(nil, n, "(#{a}).nonzero?")
+ else
+ assert_equal(false, z, "(#{a}).zero?")
+ assert_equal(a, n, "(#{a}).nonzero?")
+ check_class(n)
+ end
+ assert(z ^ n, "(#{a}).zero? ^ (#{a}).nonzero?")
+ }
+ end
+
+ def test_even_odd
+ VS.each {|a|
+ e = a.even?
+ o = a.odd?
+ assert_equal((a % 2) == 0, e, "(#{a}).even?")
+ assert_equal((a % 2) == 1, o, "(#{a}).odd")
+ assert_equal((a & 1) == 0, e, "(#{a}).even?")
+ assert_equal((a & 1) == 1, o, "(#{a}).odd")
+ assert(e ^ o, "(#{a}).even? ^ (#{a}).odd?")
+ }
+ end
+
+ def test_to_s
+ 2.upto(36) {|radix|
+ VS.each {|a|
+ s = a.to_s(radix)
+ b = s.to_i(radix)
+ assert_equal(a, b, "(#{a}).to_s(#{radix}).to_i(#{radix})")
+ }
+ }
+ end
+
+ def test_printf_x
+ VS.reverse_each {|a|
+ s = sprintf("%x", a)
+ if /\A\.\./ =~ s
+ b = -($'.tr('0123456789abcdef', 'fedcba9876543210').to_i(16) + 1)
+ else
+ b = s.to_i(16)
+ end
+ assert_equal(a, b, "sprintf('%x', #{a}) = #{s.inspect}")
+ }
+ end
+
+ def test_printf_x_sign
+ VS.reverse_each {|a|
+ s = sprintf("%+x", a)
+ b = s.to_i(16)
+ assert_equal(a, b, "sprintf('%+x', #{a}) = #{s.inspect}")
+ s = sprintf("% x", a)
+ b = s.to_i(16)
+ assert_equal(a, b, "sprintf('% x', #{a}) = #{s.inspect}")
+ }
+ end
+
+ def test_printf_o
+ VS.reverse_each {|a|
+ s = sprintf("%o", a)
+ if /\A\.\./ =~ s
+ b = -($'.tr('01234567', '76543210').to_i(8) + 1)
+ else
+ b = s.to_i(8)
+ end
+ assert_equal(a, b, "sprintf('%o', #{a}) = #{s.inspect}")
+ }
+ end
+
+ def test_printf_o_sign
+ VS.reverse_each {|a|
+ s = sprintf("%+o", a)
+ b = s.to_i(8)
+ assert_equal(a, b, "sprintf('%+o', #{a}) = #{s.inspect}")
+ s = sprintf("% o", a)
+ b = s.to_i(8)
+ assert_equal(a, b, "sprintf('% o', #{a}) = #{s.inspect}")
+ }
+ end
+
+ def test_printf_b
+ VS.reverse_each {|a|
+ s = sprintf("%b", a)
+ if /\A\.\./ =~ s
+ b = -($'.tr('01', '10').to_i(2) + 1)
+ else
+ b = s.to_i(2)
+ end
+ assert_equal(a, b, "sprintf('%b', #{a}) = #{s.inspect}")
+ }
+ end
+
+ def test_printf_b_sign
+ VS.reverse_each {|a|
+ s = sprintf("%+b", a)
+ b = s.to_i(2)
+ assert_equal(a, b, "sprintf('%+b', #{a}) = #{s.inspect}")
+ s = sprintf("% b", a)
+ b = s.to_i(2)
+ assert_equal(a, b, "sprintf('% b', #{a}) = #{s.inspect}")
+ }
+ end
+
+ def test_printf_di
+ VS.reverse_each {|a|
+ s = sprintf("%d", a)
+ b = s.to_i
+ assert_equal(a, b, "sprintf('%d', #{a}) = #{s.inspect}")
+ s = sprintf("%i", a)
+ b = s.to_i
+ assert_equal(a, b, "sprintf('%i', #{a}) = #{s.inspect}")
+ }
+ end
+
+ def test_marshal
+ VS.reverse_each {|a|
+ s = Marshal.dump(a)
+ b = Marshal.load(s)
+ assert_equal(a, b, "Marshal.load(Marshal.dump(#{a}))")
+ }
+ end
+
+ def test_pack_ber
+ template = "w"
+ VS.reverse_each {|a|
+ if a < 0
+ assert_raise(ArgumentError) { [a].pack(template) }
+ else
+ s = [a].pack(template)
+ b = s.unpack(template)[0]
+ assert_equal(a, b, "[#{a}].pack(#{template.dump}).unpack(#{template.dump})")
+ end
+ }
+ end
+
+ def test_pack_utf8
+ template = "U"
+ VS.reverse_each {|a|
+ if a < 0 || 0x7fffffff < a
+ assert_raise(RangeError) { [a].pack(template) }
+ else
+ s = [a].pack(template)
+ b = s.unpack(template)[0]
+ assert_equal(a, b, "[#{a}].pack(#{template.dump}).unpack(#{template.dump})")
+ end
+ }
+ end
+
+ def test_Integer
+ assert_raise(ArgumentError) {Integer("0x-1")}
+ assert_raise(ArgumentError) {Integer("-0x-1")}
+ assert_raise(ArgumentError) {Integer("0x 123")}
+ assert_raise(ArgumentError) {Integer("0x 123")}
+ assert_raise(ArgumentError) {Integer("0x0x5")}
+ assert_raise(ArgumentError) {Integer("0x0x000000005")}
+ assert_nothing_raised(ArgumentError) {
+ assert_equal(1540841, "0x0x5".to_i(36))
+ }
+ assert_raise(ArgumentError) { Integer("--0") }
+ assert_raise(ArgumentError) { Integer("-+0") }
+ assert_raise(ArgumentError) { Integer("++1") }
+ assert_raise(ArgumentError) { Integer("") }
+ assert_raise(ArgumentError) { Integer("10 x") }
+ assert_raise(ArgumentError) { Integer("1__2") }
+ assert_raise(ArgumentError) { Integer("1z") }
+ assert_raise(ArgumentError) { Integer("46116860184273__87904") }
+ assert_raise(ArgumentError) { Integer("4611686018427387904_") }
+ assert_raise(ArgumentError) { Integer("4611686018427387904 :") }
+ assert_equal(0x4000000000000000, Integer("46_11_686_0184273_87904"))
+ assert_raise(ArgumentError) { Integer("\0") }
+ assert_nothing_raised(ArgumentError, "[ruby-core:13873]") {
+ assert_equal(0, Integer("0 "))
+ }
+ end
+end