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 30271-60da3cd182) Lines: 1115 1153 96.7 %
Date: 2025-05-11 09:20:26 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 399271983
Zf_shift 206264028
Zf_sqr 448896
Zf_sub 191070978
absdiviu_rem 278862033
addiispec 4576542189
addshiftw 705683262
adduispec 2392635636
adduispec_offset 491917644
addumului 0
affir 320922399
catii 471186822
cmpiispec 4100512761
convi 317022
convi_dac 736332
diviiexact 390693963
divis 721893
divis_rem 65080182
diviuexact 28478289
diviuexact_i 29513355
diviuuexact 149898
divri 114002430
divrr 129588567
dvmdii 1672965609
equaliispec 198592176
floorr 5246172
incloop 35257065
incneg 50013
incpos 34954581
int_normalize 854068410
mantissa2nr 48736806
muliifft_dis 15702102
muliifft_dit 30956967
muliifft_spliti 168921
muliifft_unspliti 85290
muliispec 5456442567
muliispec_basecase 5229501543
muliispec_fft 83631
mulliifft_params 85290
muluispec 4837381110
muluui 166566
p_sqrtu1 94999644
p_sqrtu2 92297391
pari_kernel_close 786
pari_kernel_init 788
pari_kernel_version 2
red_montgomery 36739086
remi2n 19717713
resetloop 130656
roundr_up_ip 446523136
setloop 2247126
shiftispec 1276928511
sqrispec 939501873
sqrispec_basecase 929562798
sqrispec_fft 1659
sqrtispec 327615975
sqrtispec1_sh 2702253
sqrtispec2 92022564
sqrtispec2_sh 274827
sqrtr_abs 91236606
sqrtremi 3763593
subiispec 3384295017
subiuspec 1588277832
truncr 2621961
umodiu 1407853731
xmpn_copy 1074441855
xmpn_zero 91236606

Generated by: LCOV version 1.16