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: 2026-10-11 17:02:16 Functions: 96.4 % 56 54
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
GEN2mpz 117012180
absdiviu_rem 52881880
addiispec 3497587572
adduispec 2909722475
adduispec_offset 775235583
addumului 0
affir 422114284
cmpiispec 4256006351
convi 447830
diviiexact 561382608
divis 336639
divis_rem 94370737
diviuexact 34277835
diviuexact_i 441847437
diviuuexact 200898
divri 161195506
divri_with_gmp 35425541
divrr 151744385
divrr_with_gmp 78682761
dvmdii 2314875452
equaliispec 310386286
floorr 6429897
icopy_ef 42964524
incloop 64359142
incneg 66684
incpos 63955806
int_normalize 322876025
mantissa2nr 142719452
mpz2GEN 58506090
muliispec 6212404557
muliispec_mirror 86836573
muluispec 5942454926
muluui 223122
pari_gmp_free 1632816
pari_gmp_realloc 0
pari_kernel_close 1092
pari_kernel_init 1100
pari_kernel_version 4
red_montgomery 34742924
remi2n 38602804
resetloop 174380
roundr_up_ip 562331365
setloop 2999288
shiftispec 763828669
sqrispec 1082843258
sqrispec_mirror 42195509
sqrtr_abs 131568219
sqrtremi 5137754
subiispec 3277019635
subiuspec 1873678492
truncr 2530495
umodiu 1373399143
xmpn_copy 7067294
xmpn_mirror 609231280
xmpn_mirrorcopy 742248906
xmpn_zero 245676521

Generated by: LCOV version 2.0-1