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/none - mp.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30499-74bdd0ac5b) Lines: 1115 1153 96.7 %
Date: 2025-09-17 09:23:49 Functions: 69 70 98.6 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Zf_add 187658496
Zf_mul 15338496
Zf_mulsqrt2 187658496
Zf_red_destroy 399271821
Zf_shift 206264025
Zf_sqr 448896
Zf_sub 191070960
absdiviu_rem 233520945
addiispec 4592067834
addshiftw 708431331
adduispec 2399886279
adduispec_offset 491229129
addumului 0
affir 323170962
catii 476211486
cmpiispec 4133044188
convi 317646
convi_dac 737406
diviiexact 396846087
divis 240009
divis_rem 65817912
diviuexact 22434297
diviuexact_i 29602317
diviuuexact 149898
divri 114247470
divrr 130378089
dvmdii 1687012035
equaliispec 199778889
floorr 5350179
incloop 35266008
incneg 50013
incpos 34963509
int_normalize 858266880
mantissa2nr 49151226
muliifft_dis 15702102
muliifft_dit 30956967
muliifft_spliti 168921
muliifft_unspliti 85290
muliispec 5396214264
muliispec_basecase 5169153825
muliispec_fft 83631
mulliifft_params 85290
muluispec 4851957702
muluui 166566
p_sqrtu1 95810565
p_sqrtu2 93076275
pari_kernel_close 786
pari_kernel_init 788
pari_kernel_version 2
red_montgomery 40617075
remi2n 20045892
resetloop 130656
roundr_up_ip 449252806
setloop 2248392
shiftispec 1289962941
sqrispec 951949851
sqrispec_basecase 942010047
sqrispec_fft 1659
sqrtispec 330910875
sqrtispec1_sh 2734290
sqrtispec2 92805132
sqrtispec2_sh 271143
sqrtr_abs 92017659
sqrtremi 3793461
subiispec 3402372657
subiuspec 1597625880
truncr 2700357
umodiu 1432080006
xmpn_copy 1085662518
xmpn_zero 92017659

Generated by: LCOV version 1.16