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 30831-19b50a36d0) Lines: 338 340 99.4 %
Date: 2026-04-21 09:26:02 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 38213
cbezout 703594
ulcm 3011857
cgcd 28611191
lgcdii 30818257
xxgcduu 133053119
gcduodd 306673025
ugcd 370623182
mygcduodd 402451357
Fl_inv 484721154
Fl_invsafe 497524323
xgcduu 520822082
igcduu 584096843

Generated by: LCOV version 1.16