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-rw-r--r--Lib/test/test_fileio.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/test/test_fileio.py b/Lib/test/test_fileio.py
index 75db82c..9854d0c 100644
--- a/Lib/test/test_fileio.py
+++ b/Lib/test/test_fileio.py
@@ -306,6 +306,11 @@ class OtherFileTests(unittest.TestCase):
finally:
os.unlink(TESTFN)
+ def testConstructorHandlesNULChars(self):
+ fn_with_NUL = 'foo\0bar'
+ self.assertRaises(TypeError, _FileIO, fn_with_NUL, 'w')
+ self.assertRaises(TypeError, _FileIO, bytes(fn_with_NUL, 'ascii'), 'w')
+
def testInvalidFd(self):
self.assertRaises(ValueError, _FileIO, -10)
self.assertRaises(OSError, _FileIO, make_bad_fd())