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 - kernel/none - gcdll.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30711-c92306d4b4) Lines: 338 340 99.4 %
Date: 2026-02-24 09:25:14 Functions: 14 14 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
clcm 37347
rgcduu 38595
cbezout 703619
ulcm 3011847
cgcd 28993232
lgcdii 30854694
xxgcduu 133087218
gcduodd 305479547
ugcd 370327900
mygcduodd 400792964
Fl_inv 484371046
Fl_invsafe 497401807
xgcduu 520684102
igcduu 580552875

Generated by: LCOV version 1.16