I did this

CURL_DBG_SOCK_RMAX=4 ./runtests.pl -v 982

I expected the following

The test to succeed.

The difference is that pop3_state_starttls_resp() in pop3.c:789 behaves differently depending on the pp.cache_size. With small recv(), cache_size is 0, where on "normal" test runs, additional response data is in the cache.

Since CURLUSESSL_TRY is active, test982 proceeds with user authentication where in "normal" run, it does not.

curl/libcurl version

curl 8.4.0-DEV

operating system

macOS