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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 95.3 % 255 243
Test Date: 2026-08-13 17:02:38 Functions: 92.0 % 25 23
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
closure_has_clone 65881
mt_break_recover 0
mt_broadcast 1
mt_err_recover 1870
mt_export_add 13
mt_export_del 8
mt_is_parallel 220893
mt_is_thread 31106806
mt_nbthreads 389817
mt_queue_check 728795
mt_queue_cleanup 376726
mt_queue_reset 6
mt_queue_run 376726
mt_queue_start_lim 152868
mt_queue_unlock 1
mt_sigint 0
mt_sigint_block 213825284
mt_sigint_unblock 213825283
mt_thread_init 376726
mtpthread_queue_cleanup 65881
mtpthread_queue_end 65875
mtpthread_queue_get 815158
mtpthread_queue_submit 815158
pari_mt_close 269
pari_mt_init 269

Generated by: LCOV version 2.0-1