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 v2.19.0 lcov report (development 31092-e6893b0017) Lines: 98.6 % 73 72
Test Date: 2026-08-12 17:02:34 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_start 87
mtstate_reset 452
mtsingle_err_recover 13111
mtsequential_queue_end 50428
mtsequential_queue_start 50428
mtstate_restore 56415
mtsequential_queue_get 250733
mtsequential_queue_submit 250733
mtsingle_queue_end 1041480
mtsingle_queue_start 1041506
mt_queue_end 1157783
mtstate_save 1432364
mtsingle_queue_get 4489293
mtsingle_queue_submit 4489319
mt_queue_get 5555237
mt_queue_submit 5555263
mtsingle_is_thread 217746298

Generated by: LCOV version 2.0-1