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 30735-65f72320ad) Lines: 338 340 99.4 %
Date: 2026-03-15 09:23:45 Functions: 14 14 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
clcm 37375
rgcduu 38468
cbezout 703588
ulcm 3011918
cgcd 28812541
lgcdii 30850348
xxgcduu 133046735
gcduodd 305428425
ugcd 370055870
mygcduodd 400731547
Fl_inv 484350803
Fl_invsafe 497250944
xgcduu 520492168
igcduu 580615489

Generated by: LCOV version 1.16