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Bug #11804
closed52931 以降、caseでInfinityを使用するとFloatDomainErrorが発生する
Status:
Closed
Assignee:
-
Target version:
-
ruby -v:
ruby 2.3.0dev (2015-12-11 trunk 53027) [x86_64-darwin14]
Description
以下のようなケースです。
def test_infinity
inf = 1.0/0.0
result = case inf
when true then 1
when false then 0
else
inf.to_i rescue nil
end
assert_nil result
end
52930の場合
# Running tests:
Finished tests in 0.136572s, 51.2550 tests/s, 314.8522 assertions/s.
7 tests, 43 assertions, 0 failures, 0 errors, 0 skips
52931の場合
[4/7] TestCase#test_infinity = 0.00 s
1) Error:
TestCase#test_infinity:
FloatDomainError: Infinity
ruby/test/ruby/test_case.rb:156:in `test_infinity'
Finished tests in 0.135196s, 51.7767 tests/s, 310.6601 assertions/s.
7 tests, 42 assertions, 0 failures, 1 errors, 0 skips
なおwhen
のあとがStringのみのケースだと2.2.3でも例外が発生します。
irb(main):001:0> RUBY_VERSION
=> "2.2.3"
irb(main):002:0> inf = 1.0/0.0
=> Infinity
irb(main):003:0>
irb(main):004:0* result = case inf
irb(main):005:1> when 'str' then :string
irb(main):006:1> else
irb(main):007:1* inf.to_i rescue nil
irb(main):008:1> end
FloatDomainError: Infinity
from (irb):4
from .rbenv/versions/2.2.3/bin/irb:11:in `<main>'
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