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 30762-238ab8e6c0) Lines: 338 340 99.4 %
Date: 2026-03-22 09:27:12 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 38169
cbezout 703594
ulcm 3011860
cgcd 28929241
lgcdii 30852417
xxgcduu 133123384
gcduodd 305886995
ugcd 370775427
mygcduodd 401590078
Fl_inv 486157783
Fl_invsafe 499099521
xgcduu 522432157
igcduu 581917881

Generated by: LCOV version 1.16