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 - mt.c (source / functions) Coverage Total Hit
Test: PARI/GP v2.18.1 lcov report (development 31041-bd73e9fcdd) Lines: 98.6 % 73 72
Test Date: 2026-07-22 22:45:42 Functions: 100.0 % 17 17
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
mt_queue_end 1156789
mt_queue_get 5553504
mt_queue_start 87
mt_queue_submit 5553575
mtsequential_queue_end 50403
mtsequential_queue_get 250350
mtsequential_queue_start 50410
mtsequential_queue_submit 250395
mtsingle_err_recover 13111
mtsingle_is_thread 217745362
mtsingle_queue_end 1040552
mtsingle_queue_get 4488150
mtsingle_queue_start 1040578
mtsingle_queue_submit 4488176
mtstate_reset 452
mtstate_restore 56415
mtstate_save 1432371

Generated by: LCOV version 2.0-1