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 30809-023acc7158) Lines: 338 340 99.4 %
Date: 2026-04-13 09:26:12 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 38080
cbezout 703603
ulcm 3011794
cgcd 28536813
lgcdii 30819559
xxgcduu 133056056
gcduodd 306686374
ugcd 370596958
mygcduodd 402480491
Fl_inv 484682034
Fl_invsafe 497510674
xgcduu 520821711
igcduu 584105791

Generated by: LCOV version 1.16