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 30556-bb9f5f8fc8) Lines: 1115 1153 96.7 %
Date: 2025-11-25 09:20:50 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 239928
sqrtispec2_sh 269145
convi 317129
Zf_sqr 448896
convi_dac 737475
setloop 2248323
truncr 2524290
sqrtispec1_sh 2724684
sqrtremi 3778497
floorr 5179086
Zf_mul 15338496
muliifft_dis 15702102
remi2n 19965222
diviuexact 22265811
diviuexact_i 28341114
muliifft_dit 30956967
incpos 34964307
incloop 35266806
red_montgomery 40631727
mantissa2nr 48834480
divis_rem 65022168
sqrtr_abs 91524477
xmpn_zero 91524477
sqrtispec2 92308590
p_sqrtu2 92577735
p_sqrtu1 95302419
divri 114179361
divrr 129806724
Zf_add 187658496
Zf_mulsqrt2 187658496
Zf_sub 191070960
equaliispec 197007570
Zf_shift 206264025
absdiviu_rem 232258122
affir 320531190
sqrtispec 329275119
diviiexact 377796366
Zf_red_destroy 399271821
roundr_up_ip 441725587
catii 473933058
adduispec_offset 490295577
addshiftw 706724970
int_normalize 855394224
sqrispec_basecase 939294288
sqrispec 949233780
xmpn_copy 1080378948
shiftispec 1283483217
umodiu 1338939111
subiuspec 1575810870
dvmdii 1664107872
adduispec 2374191885
subiispec 3363566844
cmpiispec 4079544447
addiispec 4546755477
muluispec 4789661118
muliispec_basecase 5117858649
muliispec 5344635087

Generated by: LCOV version 1.16