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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 99.4 % 340 338
Test Date: 2026-08-05 17:02:52 Functions: 100.0 % 14 14
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
clcm 37402
rgcduu 38155
cbezout 704096
ulcm 3160648
lgcdii 31134326
cgcd 31566145
xxgcduu 135118096
gcduodd 309030311
ugcd 375089035
mygcduodd 405337040
Fl_inv 495092157
Fl_invsafe 509471687
xgcduu 532765008
igcduu 586916530

Generated by: LCOV version 2.0-1