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 30786-ffec283a2b) Lines: 338 340 99.4 %
Date: 2026-04-07 09:25:56 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 38465
cbezout 703599
ulcm 3011785
cgcd 28696535
lgcdii 30850122
xxgcduu 133076663
gcduodd 305804981
ugcd 370439657
mygcduodd 401468168
Fl_inv 485409326
Fl_invsafe 498218899
xgcduu 521512858
igcduu 581888572

Generated by: LCOV version 1.16