[New-bugs-announce] [issue33694] test_asyncio: test_start_tls_server_1() fails on Python on x86 Windows7 3.7 and 3.x

[STINNER Victor]

New submission from STINNER Victor <vstinner at redhat.com>:

test_asyncio.test_start_tls_server_1() got many fixes recently: see bpo-32458 and bpo-33674... but it still fails on Python on x86 Windows7 3.x at revision bb9474f1fb2fc7c7ed9f826b78262d6a12b5f9e8 which contains all these fixes.

The test fails even when test_asyncio is re-run alone (not when other tests run in parallel).

http://buildbot.python.org/all/#/builders/58/builds/930

======================================================================
ERROR: test_start_tls_server_1 (test.test_asyncio.test_sslproto.ProactorStartTLSTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\test_asyncio\test_sslproto.py", line 467, in test_start_tls_server_1
    self.loop.run_until_complete(run_main())
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\asyncio\base_events.py", line 566, in run_until_complete
    raise RuntimeError('Event loop stopped before Future completed.')
RuntimeError: Event loop stopped before Future completed.

======================================================================
FAIL: test_start_tls_server_1 (test.test_asyncio.test_sslproto.ProactorStartTLSTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\test_asyncio\functional.py", line 42, in tearDown
    self.fail('unexpected calls to loop.call_exception_handler()')
AssertionError: unexpected calls to loop.call_exception_handler()


The test fails also on x86 Windows7 3.7:


======================================================================
ERROR: test_start_tls_server_1 (test.test_asyncio.test_sslproto.ProactorStartTLSTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\cygwin\home\db3l\buildarea\3.7.bolen-windows7\build\lib\test\test_asyncio\test_sslproto.py", line 467, in test_start_tls_server_1
    self.loop.run_until_complete(run_main())
  File "D:\cygwin\home\db3l\buildarea\3.7.bolen-windows7\build\lib\asyncio\base_events.py", line 566, in run_until_complete
    raise RuntimeError('Event loop stopped before Future completed.')
RuntimeError: Event loop stopped before Future completed.

======================================================================
FAIL: test_start_tls_server_1 (test.test_asyncio.test_sslproto.ProactorStartTLSTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\cygwin\home\db3l\buildarea\3.7.bolen-windows7\build\lib\test\test_asyncio\functional.py", line 42, in tearDown
    self.fail('unexpected calls to loop.call_exception_handler()')
AssertionError: unexpected calls to loop.call_exception_handler()


Moreover, 3.7 got an additional failure:

======================================================================
ERROR: test_pipe_handle (test.test_asyncio.test_windows_utils.PipeTests)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\cygwin\home\db3l\buildarea\3.7.bolen-windows7\build\lib\test\test_asyncio\test_windows_utils.py", line 73, in test_pipe_handle
    raise RuntimeError('expected ERROR_INVALID_HANDLE')
RuntimeError: expected ERROR_INVALID_HANDLE


The Windows7 buildbot is known to be slow. For example, test_value() of test_multiprocessing_spawn failed with a timeout (15 min) on x86 Windows7 3.x:

0:48:12 [276/416/1] test_multiprocessing_spawn crashed (Exit code 1)
Timeout (0:15:00)!
Thread 0x000008e4 (most recent call first):
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\multiprocessing\popen_spawn_win32.py", line 80 in wait
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\multiprocessing\process.py", line 140 in join
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\_test_multiprocessing.py", line 1925 in test_value



Maybe something is wrong with my karma, I don't know. Or test_asyncio just hate me.

----------
components: Tests, asyncio
messages: 318164
nosy: asvetlov, vstinner, yselivanov
priority: normal
severity: normal
status: open
title: test_asyncio: test_start_tls_server_1() fails on Python on x86 Windows7 3.7 and 3.x
versions: Python 3.7, Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue33694>
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