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 30610-dfc8ed42cd) Lines: 338 340 99.4 %
Date: 2026-01-14 09:22:13 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 40280
cbezout 701250
ulcm 3011813
cgcd 28699675
lgcdii 30855775
xxgcduu 130075013
gcduodd 306211636
ugcd 366809914
mygcduodd 401839817
Fl_inv 484729453
Fl_invsafe 497530164
xgcduu 520830298
igcduu 587671971

Generated by: LCOV version 1.16