This allows to distinguish exceptions,
such as database errors, from invalid user input.
For example, if the From: field of the message
does not look like an email address, the mail
should be ignored. But if there is a database
failure while writing a new contact for the address,
this error should be bubbled up.
* Print chats after a test failed again
E.g.
```
========== Chats of bob: ==========
Single#Chat#10: alice@example.org [alice@example.org]
--------------------------------------------------------------------------------
Msg#10: (Contact#Contact#10): hellooo [FRESH]
Msg#11: (Contact#Contact#10): hellooo without mailing list [FRESH]
--------------------------------------------------------------------------------
========== Chats of alice: ==========
Single#Chat#10: bob@example.net [bob@example.net]
--------------------------------------------------------------------------------
Msg#10: Me (Contact#Contact#Self): hellooo √
Msg#11: Me (Contact#Contact#Self): hellooo without mailing list √
--------------------------------------------------------------------------------
```
I found this very useful sometimes, so, let's try to re-introduce it (it
was removed in #3449)
* Add failing test for TestContext::drop()
* Do not panic in TestContext::drop() if runtime is dropped
Co-authored-by: link2xt <link2xt@testrun.org>
* let marknoticed_chat() work for DC_CHAT_ID_ARCHIVED_LINK
* fix test_util::get_last_msg() - the first position may be the archive-link if 'adding specials' is allowed
* add a test for the archived-link message counter
* update CHANGELOG
* move 'archived link' betweeen pinned and normal cahts or above normal chats
* add icon for 'archived chats' link
* let get_fresh_msg_cnt() work for DC_CHAT_ID_ARCHIVED_LINK
* move 'archived link' topmost
* use less noticeable archived-icon
* slightly smaller archived icon
* update CHANGELOG
There are at least two user reports that fetching existing messages
sometimes results in infinite loop of retrying it. Account is working
if set up from the backup, but never starts working if set up
from scratch.
This change improves error reporting, but also sets FetchedExistingMsgs
before actually trying to do it. This way if the operation fails,
connection is reestablished, but fetching existing messages is not
retried again over and over.
async-imap does not do its own buffering, but calls flush() after
sending each command. Using BufWriter reduces the number of write()
system calls used to send a single command.
Note that BufWriter is set up on top of TLS streams, because
we can't guarantee that TLS libraries flush the stream before
waiting for response.
This makes it possible to fuzz test the functions
without exposing the module interface in the deltachat core
interface.
Also ensure that format_flowed will not grow a dependency
on deltachat core types.
