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 30502-9830c20844) Lines: 683 719 95.0 %
Date: 2025-09-22 09:23:52 Functions: 54 56 96.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
GEN2mpz 115528408
absdiviu_rem 50865634
addiispec 3336567534
adduispec 2787557583
adduispec_offset 764281476
addumului 0
affir 404215782
cmpiispec 3979126998
convi 439396
diviiexact 533940809
divis 325426
divis_rem 86249853
diviuexact 31841992
diviuexact_i 413224299
diviuuexact 200497
divri 151459026
divri_with_gmp 35250797
divrr 142856056
divrr_with_gmp 76404161
dvmdii 2196384758
equaliispec 268850642
floorr 7140583
icopy_ef 41488786
incloop 103120943
incneg 66684
incpos 102712972
int_normalize 306764717
mantissa2nr 138485668
mpz2GEN 57765484
muliispec 5843157912
muliispec_mirror 85077435
muluispec 5601584990
muluui 222722
pari_gmp_free 1755944
pari_gmp_realloc 0
pari_kernel_close 1104
pari_kernel_init 1112
pari_kernel_version 4
red_montgomery 35055962
remi2n 39040052
resetloop 174328
roundr_up_ip 527476055
setloop 2999288
shiftispec 720235327
sqrispec 1031481990
sqrispec_mirror 41486647
sqrtr_abs 126691445
sqrtremi 5161938
subiispec 3022773567
subiuspec 1778933975
truncr 3655151
umodiu 1328391201
xmpn_copy 6897157
xmpn_mirror 587931707
xmpn_mirrorcopy 720125449
xmpn_zero 238114868

Generated by: LCOV version 1.16