I was experiencing multiple failures with make check on a fresh installation of CentOS 8.3.The solution for me was to use mock instead of rpmbuild. (I was not building as root with rpmbuild.) With mock all tests were successful. Sent from my T-Mobile 4G LTE device------ Original message------From: J LumbyDate: Sat, Jan 16, 2021 11:31 AMTo: dovecot@dovecot.org;Cc: Subject:dovecot 2.3.13 : make check FAILURE : Assert failed: buffer_append_full_fileAfter successfully building dovecot 2.3.13 (linux kernel 5.10.1 , glibc-2.32 , gcc-9.3)

make check had one failure as follows :

test-buffer-istream.c:54: Assert failed: buffer_append_full_file(result, TEST_FILENAME, SIZE_MAX, &error) == BUFFER_APPEND_READ_ERROR test-buffer-istream.c:56: Assert failed: error != NULL && *error != '\0' buffer_append_full_file .............................................. : FAILED

After a brief look at the referenced code in test-buffer-istream.c  ,  I can't find out what this FAIL really means or whether it is serious.

The assert is finding that the result of the call to buffer_append_full_file is not BUFFER_APPEND_READ_ERROR,   but it does not report what the result code actually was.    Maybe errno was actually 0 and call succeeded?   I don't know.   Nor can I see how to add some code to find out.

Can anyone offer any advice on what this means and/or how to investigate?

Cheers,  John Lumby