Tests that need one client's request to have landed before another
client acts slept for it: a join before a room message, ticker or room
search, a watcher's global-room join and leave, a guest accepting
invitations, a room created before an outsider asks for it, share
counts and interests before they are queried, a stored message before
its recipient logs in, and an acknowledgement before the session ends.
Several of those requests get no reply to wait on.
soulfind takes each connection's messages in order, so a fence asks it
about a user over the connection that has to be settled and waits for
the answer, which only arrives once everything sent before it has been
handled. Where the event itself is visible - a member list, alice's own
ticker - the tests wait on that instead.
Michel de Graaf
a6d4c8b3df