test suite fails with openssl 1.1.1e

[FelixSchwarz]

The test suite fails after upgrading openssl to 1.1.1e on Fedora rawhide ("Fedora 33"):

======================================================================
ERROR: test02_fetch_from_url (__main__.TestUtilsModule)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "./test_utils.py", line 32, in test02_fetch_from_url
    res = fetch_from_url(Constants.TEST_URI, config)
  File "/builddir/build/BUILD/ndg_httpsclient-0.5.1/ndg/httpsclient/utils.py", line 100, in fetch_from_url
    raise URLFetchError(return_message)
ndg.httpsclient.utils.URLFetchError: Error: [('SSL routines', 'ssl3_read_n', 'unexpected eof while reading')]
======================================================================
FAIL: test03_open_url (__main__.TestUtilsModule)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "./test_utils.py", line 38, in test03_open_url
    self.assertEqual(res[0], 200,
AssertionError: 0 != 200 : open_url for 'https://localhost:4443' failed
----------------------------------------------------------------------

This might be related/similar to another bug report for urllib3: unexected eof with OpenSSL 1.1.1e #1825.

Downstream Fedora issue will complete build logs: https://bugzilla.redhat.com/show_bug.cgi?id=1815903

[FelixSchwarz]

The openssl change was reverted so you don't have to solve this right now. I'm not sure yet if the change will reappear in a future version openssl and/or if Python will be adapted to handle this.