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: 2026-09-06 17:02:10 Functions: 100.0 % 14 14
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
Fl_inv 495147885
Fl_invsafe 509527415
cbezout 704099
cgcd 31566145
clcm 37402
gcduodd 309030680
igcduu 586917260
lgcdii 31134423
mygcduodd 405336640
rgcduu 38436
ugcd 375092306
ulcm 3160639
xgcduu 532821423
xxgcduu 135121731

Generated by: LCOV version 2.0-1