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 - halfgcd.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30499-74bdd0ac5b) Lines: 215 219 98.2 %
Date: 2025-09-18 09:23:44 Functions: 20 20 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
mulqab 71
matid2 915
lastq 1326
mulqi 1326
ZM2_sqr 2338
mulT 7862
HGCD_split 121889
FIXUP0 125140
FIXUP1 185033
mulq 3070212
ZM_inv2 6189702
halfgcdii 6190195
signdet 6374547
ZM2_mul 7479380
HGCD_basecase 14979242
HGCD 15100919
magic_threshold 23063937
isint2n 23127213
uexpi 23127461
HGCD0 29263444

Generated by: LCOV version 1.16