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) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 95.0 % 718 682
Test Date: 2026-08-08 17:03:11 Functions: 96.4 % 56 54
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
addumului 0
pari_gmp_realloc 0
pari_kernel_version 4
pari_kernel_close 1092
pari_kernel_init 1100
incneg 66684
resetloop 174380
diviuuexact 200898
muluui 223122
divis 336637
convi 447825
pari_gmp_free 1632829
truncr 2530440
setloop 2999288
sqrtremi 5137860
floorr 6429926
xmpn_copy 7066559
diviuexact 34279654
red_montgomery 34728771
divri_with_gmp 35425496
remi2n 38669466
sqrispec_mirror 42195542
icopy_ef 42977494
absdiviu_rem 52880490
mpz2GEN 58515044
incpos 63839554
incloop 64242891
divrr_with_gmp 78685964
muliispec_mirror 86836573
divis_rem 94421341
GEN2mpz 117030088
sqrtr_abs 131574223
mantissa2nr 142738333
divrr 151752634
divri 161202222
xmpn_zero 245685683
equaliispec 310395143
int_normalize 322925494
affir 422218816
diviuexact_i 441948391
diviiexact 561494973
roundr_up_ip 562389793
xmpn_mirror 609345490
xmpn_mirrorcopy 742283959
shiftispec 764095457
adduispec_offset 775349273
sqrispec 1083303299
umodiu 1374466794
subiuspec 1874156305
dvmdii 2316031048
adduispec 2911165464
subiispec 3278372940
addiispec 3498377109
cmpiispec 4257803431
muluispec 5943827497
muliispec 6213680077

Generated by: LCOV version 2.0-1