test updated.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15675 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 0 deletions

diff --git a/test/ruby/test_utf16.rb b/test/ruby/test_utf16.rb
index 74ddcf752e..91a693295a 100644
--- a/test/ruby/test_utf16.rb
+++ b/test/ruby/test_utf16.rb
@@ -259,6 +259,10 @@ EOT
 
   def test_gsub
     s = "abcd".force_encoding("utf-16be")
+    assert_nothing_raised {
+      s.gsub(Regexp.new(".".encode("utf-16be")), "xy")
+    }
+    s = "ab\0\ncd".force_encoding("utf-16be")
     assert_raise(ArgumentError) {
       s.gsub(Regexp.new(".".encode("utf-16be")), "xy")
     }