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/gmp - mp.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30532-0c728fd268) Lines: 683 719 95.0 %
Date: 2025-10-18 09:22:31 Functions: 54 56 96.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
GEN2mpz 115526291
absdiviu_rem 50864536
addiispec 3336570236
adduispec 2788141960
adduispec_offset 764438198
addumului 0
affir 404149499
cmpiispec 3980036950
convi 439477
diviiexact 533879432
divis 325416
divis_rem 86230859
diviuexact 31839755
diviuexact_i 413167105
diviuuexact 200491
divri 151449188
divri_with_gmp 35248972
divrr 142868471
divrr_with_gmp 76400955
dvmdii 2196690310
equaliispec 268850580
floorr 7140818
icopy_ef 41487286
incloop 103763161
incneg 66684
incpos 103361772
int_normalize 306542494
mantissa2nr 138483572
mpz2GEN 57764218
muliispec 5842572954
muliispec_mirror 85170333
muluispec 5600913113
muluui 222717
pari_gmp_free 1755949
pari_gmp_realloc 0
pari_kernel_close 1104
pari_kernel_init 1112
pari_kernel_version 4
red_montgomery 34996326
remi2n 39008532
resetloop 174328
roundr_up_ip 527345461
setloop 2999289
shiftispec 720137851
sqrispec 1031958068
sqrispec_mirror 41487982
sqrtr_abs 126696574
sqrtremi 5161982
subiispec 3022900804
subiuspec 1778777281
truncr 3654387
umodiu 1328295200
xmpn_copy 6897187
xmpn_mirror 587842712
xmpn_mirrorcopy 720073517
xmpn_zero 238084255

Generated by: LCOV version 1.16