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: 2026-09-06 17:02:10 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 336639
convi 447817
pari_gmp_free 1632821
truncr 2530524
setloop 2999288
sqrtremi 5137797
floorr 6430010
xmpn_copy 7066592
diviuexact 34277745
red_montgomery 34730284
divri_with_gmp 35425289
remi2n 38558972
sqrispec_mirror 42195509
icopy_ef 42969788
absdiviu_rem 52884418
mpz2GEN 58509686
incpos 63906257
incloop 64309593
divrr_with_gmp 78686554
muliispec_mirror 86836573
divis_rem 94406523
GEN2mpz 117019372
sqrtr_abs 131573940
mantissa2nr 142732150
divrr 151751016
divri 161200187
xmpn_zero 245685783
equaliispec 310393082
int_normalize 322837378
affir 422162366
diviuexact_i 441881770
diviiexact 561421468
roundr_up_ip 562370613
xmpn_mirror 609302753
xmpn_mirrorcopy 742277638
shiftispec 763987457
adduispec_offset 775143578
sqrispec 1083321065
umodiu 1373973518
subiuspec 1873915387
dvmdii 2315762923
adduispec 2910539126
subiispec 3278143778
addiispec 3498209589
cmpiispec 4257580630
muluispec 5943394207
muliispec 6213300014

Generated by: LCOV version 2.0-1