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: 2026-10-28 17:03:18 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 40407
cbezout 704114
ulcm 3160644
lgcdii 31134019
cgcd 31566145
xxgcduu 135121747
gcduodd 309032166
ugcd 375091536
mygcduodd 405338760
Fl_inv 495161615
Fl_invsafe 509541145
xgcduu 532834842
igcduu 586917236

Generated by: LCOV version 2.0-1