From e5c0533b5887fae64df7bf0d69a307f0a63c77e5 Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Wed, 6 Mar 2013 00:39:03 +0100
Subject: Issue #17223: Add another test to check that _PyUnicode_Ready()
 rejects code points bigger than U+10ffff

---
 Modules/_testcapimodule.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Modules/_testcapimodule.c b/Modules/_testcapimodule.c
index 2f43813..7f640bc 100644
--- a/Modules/_testcapimodule.c
+++ b/Modules/_testcapimodule.c
@@ -1418,6 +1418,16 @@ test_widechar(PyObject *self)
     else
         return raiseTestError("test_widechar",
                               "PyUnicode_FromUnicode(L\"\\U00110000\", 1) didn't fail");
+
+    wide = PyUnicode_FromUnicode(NULL, 1);
+    if (wide == NULL)
+        return NULL;
+    PyUnicode_AS_UNICODE(wide)[0] = invalid[0];
+    if (_PyUnicode_Ready(wide) < 0)
+        PyErr_Clear();
+    else
+        return raiseTestError("test_widechar",
+                              "PyUnicode_Ready() didn't fail");
 #endif
 
     Py_RETURN_NONE;
-- 
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