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| author | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-03-22 14:13:40 +0000 |
|---|---|---|
| committer | nagachika <nagachika@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-03-22 14:13:40 +0000 |
| commit | 10e0fc1b6c8fdc8d275653052e129a2d7569e58b (patch) | |
| tree | 74cfa6f39d5ff2bef1e10c343c8fced90ff1d1dd /test | |
| parent | b866e34f75a3f4e70282d23fdce68fbc45bfc30e (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_3@58060 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test')
| -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 ea51ca29f0..ccef384d94 100644 --- a/test/ruby/test_rational.rb +++ b/test/ruby/test_rational.rb @@ -927,6 +927,14 @@ 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?) |