Issue #16444: test more bytes in support.TESTFN_UNDECODABLE to support more Windows code pages
diff --git a/Lib/test/support.py b/Lib/test/support.py
index 9c01cae..4d63904 100644
--- a/Lib/test/support.py
+++ b/Lib/test/support.py
@@ -717,6 +717,9 @@
b'\xae\xd5'
# undecodable from UTF-8 (UNIX and Mac OS X)
b'\xed\xb2\x80', b'\xed\xb4\x80',
+ # undecodable from shift_jis, cp869, cp874, cp932, cp1250, cp1251, cp1252,
+ # cp1253, cp1254, cp1255, cp1257, cp1258
+ b'\x81\x98',
):
try:
name.decode(TESTFN_ENCODING)