Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

Because we actually don’t change the nick, we ignore it, just like in the
case of a normal join (of an other resource, or an other channel on the same
server).

fix #3419

As required by XEP 0359

Should fix #3369

See https://xmpp.org/extensions/xep-0359.html

See https://xmpp.org/extensions/xep-0045.html#message

By an other resource, or anything

fix #3423

fix #3420

In cases where the DNS server does not respond “domain not found” but
“domain found, but no IP for that record type”, we just say “domain not
found” too (instead of nothing, previously).

fix #3422

When an identd query happens, we check all the connected sockets for their
local and remote ports, to compare them with the query.  But we MUST only
consider the connected ones because:

- It doesn’t make sense to answer for a connection that has just been closed
- A non-connected sockets is not in a valid state for this (specifically
  here: its ::port attribute is empty)

fix #3421

It’s totally harmless

If the user sends a directed presence to an unjoined MUC without a <x/>
element, send a presence error back instead of attempting to join it
again, as this is almost never what the user wants.

Fixes #3415.

Otherwise, if we expect a stanza and biboumi never sends it, we just hang
here.

Now, we display a nice error after 10 seconds, and move on to the next test,
as other failures (xpath doesn’t match) do

To avoid conflicting with the “host” build/ directory. This way we don’t
need to remove/empty the build/ directory beforehand, etc.

Shame.

Instead of having to write it manually everytime

I forgot to remove some things when I moved them into functions.py

fix #3372