From 52b59fc9d90e8b06aa1e8df83c5ca63164769bcc Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 1 Aug 2014 07:35:48 +0000
Subject: numeric.c: 0 % Float::NAN returns Float::NAN

* numeric.c (flodivmod): all results are NaN if divisor is NaN.
  [fix GH-692]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47024 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_float.rb | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'test/ruby/test_float.rb')

diff --git a/test/ruby/test_float.rb b/test/ruby/test_float.rb
index 099f9e3b10..30725e8395 100644
--- a/test/ruby/test_float.rb
+++ b/test/ruby/test_float.rb
@@ -271,6 +271,12 @@ class TestFloat < Test::Unit::TestCase
     assert_raise(ZeroDivisionError, bug6048) { 42 % 0 }
   end
 
+  def test_modulo4
+    assert_predicate((0.0).modulo(Float::NAN), :nan?)
+    assert_predicate((1.0).modulo(Float::NAN), :nan?)
+    assert_predicate(Float::INFINITY.modulo(1), :nan?)
+  end
+
   def test_divmod2
     assert_equal([1.0, 0.0], 2.0.divmod(2))
     assert_equal([1.0, 0.0], 2.0.divmod((2**32).coerce(2).first))
-- 
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