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 30595-a3cd9a95e8) Lines: 1115 1153 96.7 %
Date: 2026-01-04 09:21:39 Functions: 69 70 98.6 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
addumului 0
pari_kernel_version 2
pari_kernel_close 786
pari_kernel_init 788
sqrispec_fft 1659
incneg 50013
muliispec_fft 83631
muliifft_unspliti 85290
mulliifft_params 85290
resetloop 130656
diviuuexact 149898
muluui 166566
muliifft_spliti 168921
divis 239013
sqrtispec2_sh 271257
convi 317936
Zf_sqr 448896
convi_dac 737718
setloop 2248395
truncr 2555331
sqrtispec1_sh 2710680
sqrtremi 3768516
floorr 5204859
Zf_mul 15338496
muliifft_dis 15702102
remi2n 20104203
diviuexact 22392102
diviuexact_i 29689782
muliifft_dit 30956967
incpos 34964676
incloop 35267175
red_montgomery 36216201
mantissa2nr 49204977
divis_rem 65909967
sqrtr_abs 91769319
xmpn_zero 91769319
sqrtispec2 92555343
p_sqrtu2 92826600
p_sqrtu1 95537280
divri 114310257
divrr 130123956
Zf_add 187658496
Zf_mulsqrt2 187658496
Zf_sub 191070960
equaliispec 199021956
Zf_shift 206264025
absdiviu_rem 234281244
affir 323227986
sqrtispec 329898036
diviiexact 396937623
Zf_red_destroy 399271821
roundr_up_ip 442588996
catii 474685386
adduispec_offset 491095203
addshiftw 707307141
int_normalize 856698912
sqrispec_basecase 936336468
sqrispec 946276353
xmpn_copy 1082239980
shiftispec 1287431256
umodiu 1432394082
subiuspec 1597352733
dvmdii 1684879788
adduispec 2399498658
subiispec 3399485265
cmpiispec 4130721276
addiispec 4589059635
muluispec 4854478245
muliispec_basecase 5168206974
muliispec 5395085616

Generated by: LCOV version 1.16