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) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30835-e55edf4b45) Lines: 338 340 99.4 %
Date: 2026-04-25 09:26:46 Functions: 14 14 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
clcm 37375
rgcduu 38168
cbezout 703610
ulcm 3011809
cgcd 28568556
lgcdii 30818854
xxgcduu 133037267
gcduodd 306683591
ugcd 370593561
mygcduodd 402454998
Fl_inv 485022263
Fl_invsafe 497899869
xgcduu 521237132
igcduu 584099238

Generated by: LCOV version 1.16