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| author | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-03-12 14:18:02 +0000 |
|---|---|---|
| committer | naruse <naruse@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-03-12 14:18:02 +0000 |
| commit | 0179055d2d146d495b93c148e431cf103b55208f (patch) | |
| tree | 8823f2dafecd4990a45b9979ac4202d4c94c7dc4 /test/ruby | |
| parent | 398098555620384bc2796dbb3f977a81f640af39 (diff) | |
merge revision(s) 57688,57689: [Backport #13242]
rational.c: infinity in power
* rational.c (nurat_expt): return Infinity due to overflow.
[ruby-core:79686] [Bug #13242]:
rational.c: infinity in power
* rational.c (nurat_expt): return 0 due to overflow.
[ruby-core:79686] [Bug #13242]:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57911 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/ruby')
| -rw-r--r-- | test/ruby/test_rational.rb | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/test/ruby/test_rational.rb b/test/ruby/test_rational.rb index e40de141b5..20989a572e 100644 --- a/test/ruby/test_rational.rb +++ b/test/ruby/test_rational.rb @@ -955,6 +955,14 @@ class Rational_Test < Test::Unit::TestCase assert_raise(ZeroDivisionError, bug5713) { Rational(0, 1) ** Rational(-2,3) } end + def test_power_overflow + bug = '[ruby-core:79686] [Bug #13242]: Infinity due to overflow' + x = EnvUtil.suppress_warning {4r**40000000} + assert_predicate x, :infinite?, bug + x = EnvUtil.suppress_warning {(1/4r)**40000000} + assert_equal 0, x, bug + end + def test_positive_p assert_predicate(1/2r, :positive?) assert_not_predicate(-1/2r, :positive?) |