This replaces the old OpenPGPv4 keys that are used in the test suite
with more modern OpenPGPv4 keys.
Having old cryptographic artifacts in the test suite presents a
problem once the old algorithms are rejected by contemporary
implementations (bug#58301).
* test/lisp/gnus/mml-sec-tests.el (ert-x): Require.
(mml-secure-test-fixture, mml-sec-test--kill-gpg-agent):
Use ert-resource-directory.
* test/lisp/gnus/mml-sec-resources/*: Moved from test/data/mml-sec/.
* .gitignore: Update location of moved file "random_seed".
* lisp/gnus/mml-sec.el (mml-secure-sender-sign-query): New
function (bug#40118).
(mml-secure-epg-sign): Use it to determine the signer (bug#40118).
* lisp/gnus/mml-sec.el
(mml-secure-allow-signing-with-unknown-recipient): Remove.
* test/lisp/gnus/mml-sec-tests.el (test-conf)
(mml-secure-en-decrypt-passphrase-no-cache-openpgp-todo)
(mml-secure-run-tests-with-gpg2):
Use epg-find-configuration instead of the obsolescent
epg-configuration. This fixes test failures on RHEL 7.8,
where ‘gpg’ and ‘gpg2’ are both 2.0.22.
* test/lisp/gnus/mml-sec-tests.el (mml-secure-en-decrypt-sign-3):
(mml-secure-en-decrypt-sign-1-3-double): These tests are unstable
on Ubuntu (bug#42803).
* test/lisp/gnus/mml-sec-tests.el
(mml-secure-en-decrypt-sign-1-1-single): Mark the test as unstable
(bug#42720). It sometimes fails on some systems (Fedora?) when
run with "-j5", so there may be a race condition in the code somewhere.
* test/lisp/gnus/mml-sec-tests.el
(mml-first-secure-en-decrypt-sign-1): mml-secure-en-decrypt-sign-1
fail sometimes, on some machines, unless it's the first test. I'm
guessing there's a race condition somewhere in the test, but put
it first now to avoid build reports.
