diff -r df58e9ce5eca -r 2c150600a9e9 libpurple/tests/test_jabber_jutil.c
--- a/libpurple/tests/test_jabber_jutil.c	Tue Sep 08 22:07:21 2009 +0000
+++ b/libpurple/tests/test_jabber_jutil.c	Wed Sep 09 19:56:39 2009 +0000
@@ -132,6 +132,7 @@
 	assert_invalid_jid("mark.doliner@gmail\\stuff.org");
 	assert_invalid_jid("paul@[::1]124");
 	assert_invalid_jid("paul@2[::1]124/as");
+	assert_invalid_jid("paul@まつ.おおかみ/\x01");
 
 	/* Ensure that jabber_id_new is properly lowercasing node and domains */
 	assert_jid_parts("paul", "darkrain42.org", "PaUL@darkrain42.org");