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 v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 95.3 % 255 243
Test Date: 2026-07-23 17:04:59 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 65843
mt_break_recover 0
mt_broadcast 1
mt_err_recover 1870
mt_export_add 13
mt_export_del 8
mt_is_parallel 220894
mt_is_thread 31106663
mt_nbthreads 389787
mt_queue_check 729538
mt_queue_cleanup 376653
mt_queue_reset 7
mt_queue_run 376653
mt_queue_start_lim 152749
mt_queue_unlock 2
mt_sigint 0
mt_sigint_block 215121503
mt_sigint_unblock 215121501
mt_thread_init 376653
mtpthread_queue_cleanup 65843
mtpthread_queue_end 65836
mtpthread_queue_get 815070
mtpthread_queue_submit 815070
pari_mt_close 269
pari_mt_init 269

Generated by: LCOV version 2.0-1