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 30862-ea47bd413c) Lines: 338 340 99.4 %
Date: 2026-05-05 09:26:54 Functions: 14 14 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
clcm 37374
rgcduu 38197
cbezout 703585
ulcm 3011834
cgcd 28620586
lgcdii 30833090
xxgcduu 133045449
gcduodd 306899827
ugcd 370679067
mygcduodd 402727357
Fl_inv 485230318
Fl_invsafe 498082122
xgcduu 521454556
igcduu 584644925

Generated by: LCOV version 1.16