Issue 31437: test_socket.SendfileUsingSendfileTest.testWithTimeoutTriggeredSend fails due to sendfile completing before timeout (original) (raw)

In building Python 3.6.2 on Ubuntu 16.04, test_socket repeatedly fails at

FAIL: testWithTimeoutTriggeredSend (test.test_socket.SendfileUsingSendfileTest)

Traceback (most recent call last): File "/mnt/python/Python-3.6.2/Lib/test/test_socket.py", line 277, in _tearDown raise exc File "/mnt/python/Python-3.6.2/Lib/test/test_socket.py", line 295, in clientRun test_func() File "/mnt/python/Python-3.6.2/Lib/test/test_socket.py", line 5358, in _testWithTimeoutTriggeredSend self.assertRaises(socket.timeout, meth, file) AssertionError: timeout not raised by _sendfile_use_sendfile

It appears this is failing as _sendfile_use_sendfile completes before the 0.01s timeout set in _testWithTimeoutTriggeredSend

Adjusting FILESIZE in class SendfileUsingSendTest to 100MB instead of 10MB (or creating FILESIZE on class SendfileUsingSendfileTest so only that set of tests uses a 100MB file) succeeds.

was a similar bug from a few years ago but I'm not sure that this can or should be solved in the same way...