tests: show test-patchbomb-tls.t smtp server log Improve test coverage by exposing what the smtp server actually receives. Make dummystmtpd redirect stderr to a log file.

demandimport: don't delay _distutils_hack import test-demandimport.py would fail on 'import distutils.msvc9compiler' because warnings: /usr/lib/python3.11/site-packages/_distutils_hack/__init__.py:18: UserWarning: Distutils was imported before Setuptools, but importing Setuptools also replaces the `distutils` module in `sys.modules`. This may lead to undesirable behaviors or errors. To avoid these issues, avoid using distutils directly, ensure that setuptools is installed in the traditional way (e.g. not an editable install), and/or make sure that setuptools is always imported before distutils. warnings.warn( /usr/lib/python3.11/site-packages/_distutils_hack/__init__.py:33: UserWarning: Setuptools is replacing distutils. warnings.warn("Setuptools is replacing distutils.") Telling demandimport to ignore this module will allow the hack to work as intended. Note: The test for distutils.msvc9compiler comes from 2205d00b6d2b. But since then, distutils is going away, and setuptools has moved forward and is replacing it. It is unclear exactly what is being tested here and how setuptools should depended on msvc9compiler. The test might no longer be relevant.

tests: update test-remotefilelog-gc.t for Python 3.11 The test output changed because test coverage changed because normpath changed: $ python3.10 -c 'import os; print(repr(os.path.normpath("asdas\0das")))' 'asdas\x00das' $ python3.11 -c 'import os; print(repr(os.path.normpath("asdas\0das")))' 'asdas'

tests: use grep -F instead of obsolescent fgrep Testing on Fedora 38 failed with: fgrep: warning: fgrep is obsolescent; using grep -F The warning comes from https://git.savannah.gnu.org/cgit/grep.git/commit/?id=a9515624709865d480e3142fd959bccd1c9372d1 . For further anecdotal evidence of the change, see https://www.phoronix.com/news/GNU-Grep-3.8-Stop-egrep-fgrep . grep -F is POSIX, but there is a risk that it doesn't work the same on all platforms - especially older Unix versions. It should however always be possible to put a GNU grep in $PATH before running the tests.