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 30381-2cde8c54db) Lines: 683 719 95.0 %
Date: 2025-07-09 09:23:19 Functions: 54 56 96.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
GEN2mpz 115380586
absdiviu_rem 110609728
addiispec 3334517833
adduispec 2786653201
adduispec_offset 764715953
addumului 0
affir 403923793
cmpiispec 3966914745
convi 438682
diviiexact 531587704
divis 1006043
divis_rem 86231571
diviuexact 39546567
diviuexact_i 419063795
diviuuexact 200499
divri 151404498
divri_with_gmp 35250984
divrr 142773388
divrr_with_gmp 76149800
dvmdii 2197501539
equaliispec 269593027
floorr 7134851
icopy_ef 41270130
incloop 103403508
incneg 66684
incpos 102995779
int_normalize 307916937
mantissa2nr 138191975
mpz2GEN 57691626
muliispec 5944920366
muliispec_mirror 85041432
muluispec 5609788048
muluui 222716
pari_gmp_free 1755997
pari_gmp_realloc 0
pari_kernel_close 1104
pari_kernel_init 1112
pari_kernel_version 4
red_montgomery 35044910
remi2n 38993095
resetloop 174328
roundr_up_ip 527525902
setloop 2997879
shiftispec 714960725
sqrispec 1028204071
sqrispec_mirror 41399612
sqrtr_abs 126376248
sqrtremi 5182346
subiispec 3012882352
subiuspec 1773259778
truncr 3649273
umodiu 1320342671
xmpn_copy 6890252
xmpn_mirror 587247751
xmpn_mirrorcopy 718727292
xmpn_zero 237549218

Generated by: LCOV version 1.16