Problem: test for gossip is based on endpoint address instead of actual actor, causing untimely unpublish message

[stvales]

Solution: use the actor instead

[sphaero]

Are you sure you are right?

* zyre_election: E: 26-01-31 15:09:29 unknown zgossip method 'UNPUBLISH'
OK
 * zyre_node: OK
 * zyre: E: 26-01-31 15:09:29 unknown zgossip method 'UNPUBLISH'
*** buffer overflow detected ***: terminated

There are some other issues in the tests as well.

[stvales]

@sphaero I do not think my PR has something to do with UNPUBLISH being unknown. Maybe the tests do not include draft APIs. I managed to conduct the tests on a Debian machine and they went well, just like on macos. It is likely that something is broken in the test infrastructure rather than in the code.

[sphaero]

Yeah I noticed the tests failing on other PRs as well. It's always a cat and mouse game with the tests. I don't have any projects utilizing Zyre currently so my effort is limited but the tests really need some tender love and care.