PROTON-1870 reproducers in Python for overly generic TLS errors

[jiridanek]

I do realize that the tests are extremely similar to the existing TLS tests in Proton Python. It felt much easier to write it gradually from scratch than to fit it into existing test helpers right from the beginning.

This issue may require writing similar tests for all the other bindings.

[jiridanek]

There is something in the test that starts TLS server in Python that is incompatible with older Python 2.x on Ubuntu, and something in all of the TLS tests that expect Proton TLS to work, that fails on Windows. This issue is on a back burner at this point, so I will not look into fixing this for now.

[codecov-commenter]

Codecov Report

Merging #261 (23f1a13) into main (3f13a38) will increase coverage by 18.64%.
The diff coverage is n/a.

❗ Current head 23f1a13 differs from pull request most recent head 6e64e9b. Consider uploading reports for the commit 6e64e9b to get more accurate results

@@             Coverage Diff             @@
##             main     #261       +/-   ##
===========================================
+ Coverage   69.69%   88.34%   +18.64%     
===========================================
  Files         370       47      -323     
  Lines       69864     2394    -67470     
===========================================
- Hits        48695     2115    -46580     
+ Misses      21169      279    -20890     

Impacted Files	Coverage Δ
python/tests/proton_tests/transport.py
build/c/src/core/object/string.c
c/tests/proactor_test.cpp
c/tests/pn_test_test.cpp
c/src/core/types.c
cpp/src/transport.cpp
cpp/include/proton/scalar_base.hpp
cpp/include/proton/codec/vector.hpp
c/src/core/engine.c
cpp/src/connection_driver.cpp
... and 313 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more