gh-90978: test_ssl of test_asyncio uses LONG_TIMEOUT

[vstinner]

On slow buildbot workers, some test_ssl tests fail randomly because
of short timeout (30 seconds). Use support.LONG_TIMEOUT instead which
is longer and also adjusted (by regrtest --timeout option) on
buildbot workers known to be slow.

[vstinner]

Python 3.10 already uses LONG_TIMEOUT:

cpython/Lib/test/test_asyncio/test_sslproto.py

Line 165 in 229dc17

TIMEOUT = support.LONG_TIMEOUT

[vstinner]

cc @zooba

[vstinner]

There is no need to backport the change to Python 3.10. In Python 3.10, it's a different filename and it already uses LONG_TIMEOUT.

[vstinner]

@pablogsal: Here is a fix for the x86 Gentoo buildbot.

[vstinner]

test_asyncio.test_create_server_ssl_over_ssl() failed on x86 Gentoo Non-Debug with X 3.x: https://buildbot.python.org/all/#/builders/58/builds/2300

IMO the problem is the hardcoded timeout of 30 seconds. This change increases it to 5 minutes (or longer, it's adapted to the buidbot --timeout argument).

ERROR: test_create_server_ssl_over_ssl (test.test_asyncio.test_ssl.TestSSL.test_create_server_ssl_over_ssl)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/test/test_asyncio/test_ssl.py", line 1090, in do
    rv = func(*args)
         ^^^^^^^^^^^
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/ssl.py", line 921, in read
    v = self._sslobj.read(len)
        ^^^^^^^^^^^^^^^^^^^^^^
ssl.SSLWantReadError: The operation did not complete (read) (_ssl.c:2546)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/test/test_asyncio/test_ssl.py", line 1157, in test_create_server_ssl_over_ssl
    self.loop.run_until_complete(start_server())
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/asyncio/base_events.py", line 650, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/test/test_asyncio/test_ssl.py", line 1150, in start_server
    await asyncio.wait_for(asyncio.gather(*tasks), TIMEOUT)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/asyncio/tasks.py", line 488, in wait_for
    return fut.result()
           ^^^^^^^^^^^^
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/test/test_asyncio/test_ssl.py", line 1128, in test_client
    await fut
    ^^^^^^^^^
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/test/test_asyncio/test_ssl.py", line 1109, in prog
    chunk = do(sslobj.read, 4)
            ^^^^^^^^^^^^^^^^^^
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/test/test_asyncio/test_ssl.py", line 1095, in do
    incoming.write(sock.recv(65536))
                   ^^^^^^^^^^^^^^^^
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/ssl.py", line 1263, in recv
    return self.read(buflen)
           ^^^^^^^^^^^^^^^^^
  File "/buildbot/buildarea/cpython/3.x.ware-gentoo-x86.nondebug/build/Lib/ssl.py", line 1136, in read
    return self._sslobj.read(len)
           ^^^^^^^^^^^^^^^^^^^^^^
TimeoutError: The read operation timed out

[asvetlov]

LGTM. Thanks for the PR!