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 30660-09c6d0ed2e) Lines: 220 232 94.8 %
Date: 2026-02-02 09:23:03 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 1862
closure_has_clone 65691
mt_queue_reset 65691
mt_queue_start_lim 151817
mt_is_parallel 220570
mt_thread_init 368176
mt_queue_unlock 369141
mt_queue_cleanup 369498
mt_queue_run 371265
mt_nbthreads 388981
mt_queue_check 690171
mtpthread_queue_get 800715
mtpthread_queue_submit 800715
mt_is_thread 31049037
mt_sigint_block 210000658
mt_sigint_unblock 210404293

Generated by: LCOV version 1.16