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: 2026-09-17 17:02:44 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 38139
cbezout 704102
ulcm 3160643
lgcdii 31134399
cgcd 31566145
xxgcduu 135109253
gcduodd 309029558
ugcd 375086511
mygcduodd 405334410
Fl_inv 495164846
Fl_invsafe 509544376
xgcduu 532837619
igcduu 586911245

Generated by: LCOV version 2.0-1