[3.7] bpo-38275: Skip ssl tests for disabled versions (GH-16427)

[tiran]

test_ssl now handles disabled TLS/SSL versions better. OpenSSL's crypto
policy and run-time settings are recognized and tests for disabled versions
are skipped.

Signed-off-by: Christian Heimes [email protected]

https://bugs.python.org/issue38275.
(cherry picked from commit df6ac7e)

Co-authored-by: Christian Heimes [email protected]

https://bugs.python.org/issue38275

[tiran]

PR needs fix from GH-16428

[tiran]

I have cherry-picked commit 34992cf into this backport.

[bedevere-bot]

⚠️⚠️⚠️ Buildbot failure ⚠️⚠️⚠️

Hi! The buildbot s390x Debian 3.7 has failed when building commit 2c24f2c.

What do you need to do:

1. Don't panic.
2. Check the buildbot page in the devguide if you don't know what the buildbots are or how they work.
3. Go to the page of the buildbot that failed (https://buildbot.python.org/all/#builders/119/builds/1513) and take a look at the build logs.
4. Check if the failure is related to this commit (2c24f2c) or if it is a false positive.
5. If the failure is related to this commit, please, reflect that on the issue and make a new Pull Request with a fix.

You can take a look at the buildbot page here:

https://buildbot.python.org/all/#builders/119/builds/1513

Failed tests:

• test_asyncio
• test_pty
• test_readline
• test_os
• test_openpty

Failed subtests:

• test_fork - test.test_pty.PtyTest
• test_read_pty_output - test.test_asyncio.test_events.EPollEventLoopTests
• test_bidirectional_pty - test.test_asyncio.test_events.SelectEventLoopTests
• test_bidirectional_pty - test.test_asyncio.test_events.PollEventLoopTests
• test_auto_history_disabled - test.test_readline.TestReadline
• test_write_pty - test.test_asyncio.test_events.PollEventLoopTests
• test_history_size - test.test_readline.TestReadline
• test_openpty - test.test_os.FDInheritanceTests
• test_read_pty_output - test.test_asyncio.test_events.PollEventLoopTests
• test_bidirectional_pty - test.test_asyncio.test_events.EPollEventLoopTests
• test_nonascii - test.test_readline.TestReadline
• test - test.test_openpty.OpenptyTest
• test_write_pty - test.test_asyncio.test_events.EPollEventLoopTests
• test_auto_history_enabled - test.test_readline.TestReadline
• test_read_pty_output - test.test_asyncio.test_events.SelectEventLoopTests

Summary of the results of the build (if available):

== Tests result: FAILURE then FAILURE ==

398 tests OK.

10 slowest tests:

• test_concurrent_futures: 2 min 18 sec
• test_multiprocessing_spawn: 1 min 30 sec
• test_multiprocessing_forkserver: 1 min 13 sec
• test_multiprocessing_fork: 1 min 5 sec
• test_tokenize: 1 min 3 sec
• test_tools: 47 sec 545 ms
• test_lib2to3: 42 sec 514 ms
• test_io: 40 sec 105 ms
• test_asyncio: 36 sec 560 ms
• test_gdb: 36 sec 441 ms

5 tests failed:
test_asyncio test_openpty test_os test_pty test_readline

13 tests skipped:
test_devpoll test_ioctl test_kqueue test_msilib test_ossaudiodev
test_startfile test_tix test_tk test_ttk_guionly test_winconsoleio
test_winreg test_winsound test_zipfile64

5 re-run tests:
test_asyncio test_openpty test_os test_pty test_readline

Total duration: 11 min 23 sec

Click to see traceback logs

Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_readline.py", line 274, in test_history_size
    run_pty(script, input=b"last input\r", env=env)
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_readline.py", line 285, in run_pty
    [master, slave] = pty.openpty()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 29, in openpty
    master_fd, slave_name = _open_terminal()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 59, in _open_terminal
    raise OSError('out of pty devices')
OSError: out of pty devices


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_openpty.py", line 11, in test
    master, slave = os.openpty()
FileNotFoundError: [Errno 2] No such file or directory


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_readline.py", line 153, in test_auto_history_disabled
    output = run_pty(self.auto_history_script.format(False))
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_readline.py", line 285, in run_pty
    [master, slave] = pty.openpty()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 29, in openpty
    master_fd, slave_name = _open_terminal()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 59, in _open_terminal
    raise OSError('out of pty devices')
OSError: out of pty devices


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/support/__init__.py", line 623, in wrapper
    return func(*args, **kw)
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_asyncio/test_events.py", line 1645, in test_bidirectional_pty
    master, read_slave = os.openpty()
FileNotFoundError: [Errno 2] No such file or directory


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_pty.py", line 130, in test_fork
    pid, master_fd = pty.fork()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 96, in fork
    master_fd, slave_fd = openpty()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 29, in openpty
    master_fd, slave_name = _open_terminal()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 59, in _open_terminal
    raise OSError('out of pty devices')
OSError: out of pty devices


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_readline.py", line 149, in test_auto_history_enabled
    output = run_pty(self.auto_history_script.format(True))
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_readline.py", line 285, in run_pty
    [master, slave] = pty.openpty()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 29, in openpty
    master_fd, slave_name = _open_terminal()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 59, in _open_terminal
    raise OSError('out of pty devices')
OSError: out of pty devices


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/support/__init__.py", line 623, in wrapper
    return func(*args, **kw)
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_asyncio/test_events.py", line 1601, in test_write_pty
    master, slave = os.openpty()
FileNotFoundError: [Errno 2] No such file or directory


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_asyncio/test_events.py", line 1503, in test_read_pty_output
    master, slave = os.openpty()
FileNotFoundError: [Errno 2] No such file or directory


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_readline.py", line 226, in test_nonascii
    output = run_pty(script, input)
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_readline.py", line 285, in run_pty
    [master, slave] = pty.openpty()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 29, in openpty
    master_fd, slave_name = _open_terminal()
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/pty.py", line 59, in _open_terminal
    raise OSError('out of pty devices')
OSError: out of pty devices


Traceback (most recent call last):
  File "/home/dje/cpython-buildarea/3.7.edelsohn-debian-z/build/Lib/test/test_os.py", line 3273, in test_openpty
    master_fd, slave_fd = os.openpty()
FileNotFoundError: [Errno 2] No such file or directory