Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - mt - pthread.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30617-dd5c93fb0e) Lines: 220 232 94.8 %
Date: 2026-01-20 09:21:06 Functions: 21 23 91.3 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
mt_break_recover 0
mt_sigint 0
mt_broadcast 1
mt_export_del 8
mt_export_add 13
pari_mt_close 266
pari_mt_init 266
mt_err_recover 1860
closure_has_clone 64015
mt_queue_reset 64015
mt_queue_start_lim 139649
mt_is_parallel 220549
mt_thread_init 352471
mt_queue_unlock 352774
mt_queue_cleanup 352958
mt_queue_run 353587
mt_nbthreads 388923
mt_queue_check 730332
mtpthread_queue_get 755355
mtpthread_queue_submit 755355
mt_is_thread 31047711
mt_sigint_block 209371558
mt_sigint_unblock 209800643

Generated by: LCOV version 1.16