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: 2026-08-24 17:04:50 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 447824
pari_gmp_free 1632816
truncr 2530509
setloop 2999288
sqrtremi 5137820
floorr 6429922
xmpn_copy 7066396
diviuexact 34276035
red_montgomery 34729476
divri_with_gmp 35425370
remi2n 38604840
sqrispec_mirror 42195509
icopy_ef 42973228
absdiviu_rem 52882233
mpz2GEN 58506870
incpos 63817869
incloop 64221205
divrr_with_gmp 78685598
muliispec_mirror 86836573
divis_rem 94381157
GEN2mpz 117013740
sqrtr_abs 131572209
mantissa2nr 142731515
divrr 151749141
divri 161200939
xmpn_zero 245683177
equaliispec 310394581
int_normalize 322834091
affir 422173001
diviuexact_i 441849658
diviiexact 561386956
roundr_up_ip 562368836
xmpn_mirror 609310393
xmpn_mirrorcopy 742274596
shiftispec 763878770
adduispec_offset 775225829
sqrispec 1083061834
umodiu 1374024813
subiuspec 1873877576
dvmdii 2315394009
adduispec 2910531276
subiispec 3277707301
addiispec 3497972616
cmpiispec 4256825474
muluispec 5943132200
muliispec 6212980737

Generated by: LCOV version 2.0-1