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[3.10] bpo-41682: fixed flaky test test_sendfile_close_peer_in_the_middle_of_receiving (GH-30845) #30860

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Merged
merged 1 commit into from
Jan 25, 2022
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[3.10] bpo-41682: fixed flaky test test_sendfile_close_peer_in_the_middle_of_receiving (GH-30845) #30860

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12 changes: 7 additions & 5 deletions Lib/test/test_asyncio/test_sendfile.py
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Original file line number Diff line number Diff line change
Expand Up @@ -92,9 +92,13 @@ async def wait_closed(self):

class SendfileBase:

# 128 KiB plus small unaligned to buffer chunk
DATA = b"SendfileBaseData" * (1024 * 8 + 1)

# 256 KiB plus small unaligned to buffer chunk
# Newer versions of Windows seems to have increased its internal
# buffer and tries to send as much of the data as it can as it
# has some form of buffering for this which is less than 256KiB
# on newer server versions and Windows 11.
# So DATA should be larger than 256 KiB to make this test reliable.
DATA = b"x" * (1024 * 256 + 1)
# Reduce socket buffer size to test on relative small data sets.
BUF_SIZE = 4 * 1024 # 4 KiB

Expand Down Expand Up @@ -456,8 +460,6 @@ def test_sendfile_ssl_close_peer_after_receiving(self):
# themselves).
@unittest.skipIf(sys.platform.startswith('sunos'),
"Doesn't work on Solaris")
@unittest.skipIf(sys.platform == "win32",
"It is flaky on Windows and needs to be fixed") # TODO: bpo-41682
def test_sendfile_close_peer_in_the_middle_of_receiving(self):
srv_proto, cli_proto = self.prepare_sendfile(close_after=1024)
with self.assertRaises(ConnectionError):
Expand Down