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: 2026-08-27 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 38288
cbezout 704122
ulcm 3160644
lgcdii 31134446
cgcd 31566145
xxgcduu 135100233
gcduodd 309028603
ugcd 375087107
mygcduodd 405334223
Fl_inv 495179632
Fl_invsafe 509559162
xgcduu 532852285
igcduu 586909007

Generated by: LCOV version 2.0-1