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bpo-34215: Clarify IncompleteReadError message when "expected" is None (GH-21925) (GH-23539)

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Co-Authored-By: Tyler Bell <mrbell321@gmail.com>
(cherry picked from commit 8085f742f4)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Co-authored-by: Zackery Spytz <zspytz@gmail.com>
This commit is contained in:
Miss Islington (bot) 2020-11-28 07:07:51 -08:00 • committed by GitHub
parent 761c5a1ce4
commit df6c8bcffe
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3 changed files with 9 additions and 4 deletions
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8
Lib/test/test_asyncio/test_streams.py
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@ -452,12 +452,14 @@ class StreamTests(test_utils.TestCase):
def test_readuntil_eof(self):
stream = asyncio.StreamReader(loop=self.loop)
stream.feed_data(b'some dataAA')
data = b'some dataAA'
stream.feed_data(data)
stream.feed_eof()
with self.assertRaises(asyncio.IncompleteReadError) as cm:
with self.assertRaisesRegex(asyncio.IncompleteReadError,
'undefined expected bytes') as cm:
self.loop.run_until_complete(stream.readuntil(b'AAA'))
self.assertEqual(cm.exception.partial, b'some dataAA')
self.assertEqual(cm.exception.partial, data)
self.assertIsNone(cm.exception.expected)
self.assertEqual(b'', stream._buffer)