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Issue #23796: peak and read1 methods of BufferedReader now raise ValueError

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if they called on a closed object.

Patch by John Hergenroeder.
This commit is contained in:
Berker Peksag 2015-05-12 17:01:05 +03:00
parent 1aa5e1d63e
commit d10d6ae2fa
3 changed files with 16 additions and 0 deletions
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8
Lib/test/test_io.py
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@ -1191,6 +1191,14 @@ class BufferedReaderTest(unittest.TestCase, CommonBufferedTests):
self.assertEqual(rawio._extraneous_reads, 0,
"failed for {}: {} != 0".format(n, rawio._extraneous_reads))
def test_read_on_closed(self):
# Issue #23796
b = io.BufferedReader(io.BytesIO(b"12"))
b.read(1)
b.close()
self.assertRaises(ValueError, b.peek)
self.assertRaises(ValueError, b.read1, 1)
class CBufferedReaderTest(BufferedReaderTest, SizeofTest):
tp = io.BufferedReader