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* test/ruby/test_bignum.rb: ensure constants to be Bignum.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33535 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2011-10-27 07:10:49 +00:00
parent 1b4e137537
commit e344d8a483
1 changed files with 27 additions and 11 deletions
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38
test/ruby/test_bignum.rb
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@ -108,18 +108,34 @@ class TestBignum < Test::Unit::TestCase
assert_equal("-1777777777777777777777" ,-18446744073709551615.to_s(8))
end
b = 2**64
b *= b until Bignum === b
T_ZERO = (2**32).coerce(0).first
T_ONE = (2**32).coerce(1).first
T_MONE = (2**32).coerce(-1).first
T31 = 2**31 # 2147483648
T31P = T31 - 1 # 2147483647
T32 = 2**32 # 4294967296
T32P = T32 - 1 # 4294967295
T64 = 2**64 # 18446744073709551616
T64P = T64 - 1 # 18446744073709551615
T1024 = 2**1024
T1024P = T1024 - 1
T_ZERO = b.coerce(0).first
T_ONE = b.coerce(1).first
T_MONE = b.coerce(-1).first
T31 = b.coerce(2**31).first # 2147483648
T31P = b.coerce(T31 - 1).first # 2147483647
T32 = b.coerce(2**32).first # 4294967296
T32P = b.coerce(T32 - 1).first # 4294967295
T64 = b.coerce(2**64).first # 18446744073709551616
T64P = b.coerce(T64 - 1).first # 18446744073709551615
T1024 = b.coerce(2**1024).first
T1024P = b.coerce(T1024 - 1).first
def test_prepare
assert_instance_of(Bignum, T_ZERO)
assert_instance_of(Bignum, T_ONE)
assert_instance_of(Bignum, T_MONE)
assert_instance_of(Bignum, T31)
assert_instance_of(Bignum, T31P)
assert_instance_of(Bignum, T32)
assert_instance_of(Bignum, T32P)
assert_instance_of(Bignum, T64)
assert_instance_of(Bignum, T64P)
assert_instance_of(Bignum, T1024)
assert_instance_of(Bignum, T1024P)
end
def test_big_2comp
assert_equal("-4294967296", (~T32P).to_s)