diff options
Diffstat (limited to 'test/ruby')
-rw-r--r-- | test/ruby/test_math.rb | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/ruby/test_math.rb b/test/ruby/test_math.rb index d4dbf9dbf0..c62466d33c 100644 --- a/test/ruby/test_math.rb +++ b/test/ruby/test_math.rb @@ -1,6 +1,10 @@ require 'test/unit' class TestMath < Test::Unit::TestCase + def assert_infinity(a, *rest) + assert(!a.finite?, *rest) + end + def check(a, b) err = [Float::EPSILON * 4, [a.abs, b.abs].max * Float::EPSILON * 256].max assert_in_delta(a, b, err) @@ -189,6 +193,13 @@ class TestMath < Test::Unit::TestCase check(2, Math.gamma(3)) check(15 * sqrt_pi / 8, Math.gamma(3.5)) check(6, Math.gamma(4)) + + # no SEGV [ruby-core:25257] + 31.upto(65) do |i| + i = 1 << i + assert_infinity(Math.gamma(i)) + assert_infinity(Math.gamma(i-1)) + end end def test_lgamma |