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 30536-6f6fcf9613) Lines: 215 219 98.2 %
Date: 2025-11-06 09:21:54 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 121883
FIXUP0 125142
FIXUP1 185024
mulq 3070164
ZM_inv2 6189535
halfgcdii 6189781
signdet 6374501
ZM2_mul 7479380
HGCD_basecase 14978738
HGCD 15100364
magic_threshold 23063284
isint2n 23126589
uexpi 23126811
HGCD0 29262655

Generated by: LCOV version 1.16