mark_seen=True is the default and translates to fetching BODY
of the message. mark_seen=False translates to fetching BODY.PEEK
that is described in IETF RFC 3501 as
"An alternate form of BODY[<section>] that does not implicitly set the \Seen flag."
It is unexpected unless you know this detail of IMAP protocol already,
but this is not going to be fixed in imap_tools: <https://github.com/ikvk/imap_tools/issues/179>
With I/O stopped, `background_fetch()` connected only to the transport of `configured_addr`
and we now instead fan out to all transports in a controlled loop.
If a first transport finished fetching new messages
cancel all other attempts and return.
This is meant to address the problem that amzd described
where a profile with one functioning and one hanging transport,
shows the first notification, then hangs 15 seconds waiting for the hanging transport.
meanwhile a second NSE arrives and dies, and the second message is not notified
or only generically.
Also drop the quota check from this background fetch path:
its result is in-memory only, discarded when the iOS notification service exits,
and the regular scheduler fetching refreshes it every 60s anyway.
Moreover, quota errors/running full is pretty rare
since relays generally automatically stay under quota these days.
It's another round trip for each transport of each profile and simply not necessary.
Also adds previously missing online tests.
This is to fix tests failing with `OSError: [Errno 9] Bad file descriptor`. Maybe stdout closes
earlier than stderr, before the test finishes, not sure. For reference, the previous commit removing
print()s is 800edc6fce.
Created new test_folders.py
Moved existing JSON-RPC tests:
- test_reactions_for_a_reordering_move
- test_delete_deltachat_folder
Ported tests:
- test_move_works_on_self_sent
- test_moved_markseen
- test_markseen_message_and_mdn
- test_mvbox_thread_and_trash (renamed to test_mvbox_and_trash)
- test_scan_folders
- test_move_works
- test_move_avoids_loop
- test_immediate_autodelete
- test_trash_multiple_messages
The change also contains fixes for direct_imap fixture
needed to use IMAP IDLE in JSON-RPC tests.
