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 - basemath - aprcl.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30735-65f72320ad) Lines: 580 704 82.4 %
Date: 2026-03-10 09:24:00 Functions: 48 50 96.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
_mul 2040726
_powpolmod 43385
_powpolmodsimple 8771
_red 801467
_red_cyclo2n 559230
_red_cyclop 1735713
add 336
aprcl 971
aprcl_step4_worker 12979
aprcl_step6_worker 1179
aut 141923
autvec_AL 21232
autvec_TH 21232
calcglobs 950
check_t 301
compute_e 950
compute_g 12978
compute_t 950
compute_t_small 950
computetabdl 19022
divisorslenstra 63
filltabs 5016
finda 1374
get_jac 20215
get_jac2 6045
is_m1 6252
isprimeAPRCL 971
look_eta 20215
look_eta2 6048
makepoldeg1 1132983
modZ 15462934
powpolmod 26261
red_cyclo2n 559228
red_cyclo2n_ip 560590
red_cyclop 1735658
set_add 385
sqrconst 0
sqrmod 2237477
sqrmod3 661823
sqrmod4 472624
sqrmod5 1222404
sqrmodZ 7158334
step4a 20215
step4b 1019
step4c 5026
step4d 6941
step5 0
step6 950
u_red_cyclo2n_ip 7320
zv_to_ZX 20215

Generated by: LCOV version 1.16