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-rw-r--r--Lib/test/test_sys.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index eb7d1a4..23ec399 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -799,6 +799,7 @@ class SizeofTest(unittest.TestCase):
old = sys.getfilesystemencoding()
sys.setfilesystemencoding("iso-8859-1")
self.assertEqual(sys.getfilesystemencoding(), "iso-8859-1")
+ self.assertRaises(LookupError, sys.setfilesystemencoding, "xxx")
sys.setfilesystemencoding(old)
def test_main():