1 files changed, 10 insertions, 1 deletions
diff --git a/test/ruby/test_numeric.rb b/test/ruby/test_numeric.rb
index 1ce608776d..8f478bd2c6 100644
--- a/test/ruby/test_numeric.rb
+++ b/test/ruby/test_numeric.rb
@@ -51,7 +51,16 @@ class TestNumeric < Test::Unit::TestCase
   end
 
   def test_quo
-    assert_raise(ArgumentError) {DummyNumeric.new.quo(0)}
+    DummyNumeric.class_eval do
+      def /(x); :div; end
+    end
+
+    assert_equal(:div, DummyNumeric.new.quo(0))
+
+  ensure
+    DummyNumeric.class_eval do
+      remove_method :/
+    end
   end
 
   def test_divmod