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) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30465-b757eeabfc) Lines: 683 719 95.0 %
Date: 2025-08-12 09:23:53 Functions: 54 56 96.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
GEN2mpz 115519616
absdiviu_rem 113196772
addiispec 3336442974
adduispec 2787188633
adduispec_offset 764640690
addumului 0
affir 404213266
cmpiispec 3983075956
convi 439451
diviiexact 534555868
divis 1006216
divis_rem 86222329
diviuexact 40539066
diviuexact_i 422546531
diviuuexact 200470
divri 151453509
divri_with_gmp 35251160
divrr 142815707
divrr_with_gmp 76348096
dvmdii 2196363915
equaliispec 269638710
floorr 7137462
icopy_ef 41478766
incloop 103605906
incneg 66684
incpos 103198590
int_normalize 306496104
mantissa2nr 138412723
mpz2GEN 57761176
muliispec 5945445368
muliispec_mirror 85119160
muluispec 5614478384
muluui 222712
pari_gmp_free 1755942
pari_gmp_realloc 0
pari_kernel_close 1104
pari_kernel_init 1112
pari_kernel_version 4
red_montgomery 35013859
remi2n 39118181
resetloop 174328
roundr_up_ip 527110508
setloop 2999291
shiftispec 717956128
sqrispec 1031673826
sqrispec_mirror 41408447
sqrtr_abs 126575964
sqrtremi 5160694
subiispec 3022957548
subiuspec 1778634296
truncr 3650089
umodiu 1327939604
xmpn_copy 6896300
xmpn_mirror 587709151
xmpn_mirrorcopy 719570944
xmpn_zero 237894358

Generated by: LCOV version 1.16