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 30417-3115e90663) Lines: 1115 1153 96.7 %
Date: 2025-07-28 09:23:22 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 280511823
addiispec 4587104565
addshiftw 707156016
adduispec 2395862583
adduispec_offset 491216778
addumului 0
affir 322951137
catii 473843844
cmpiispec 4126984362
convi 317427
convi_dac 736542
diviiexact 395022570
divis 751356
divis_rem 65790597
diviuexact 28717560
diviuexact_i 29555397
diviuuexact 149898
divri 114205947
divrr 130299930
dvmdii 1685068101
equaliispec 200351913
floorr 5347014
incloop 35265825
incneg 50013
incpos 34963326
int_normalize 855889473
mantissa2nr 49099899
muliifft_dis 15702102
muliifft_dit 30956967
muliifft_spliti 168921
muliifft_unspliti 85290
muliispec 5468194542
muliispec_basecase 5241180963
muliispec_fft 83631
mulliifft_params 85290
muluispec 4852981074
muluui 166566
p_sqrtu1 95588421
p_sqrtu2 92855067
pari_kernel_close 786
pari_kernel_init 788
pari_kernel_version 2
red_montgomery 40617075
remi2n 19992339
resetloop 130656
roundr_up_ip 448884091
setloop 2248386
shiftispec 1284693939
sqrispec 948988773
sqrispec_basecase 939049680
sqrispec_fft 1659
sqrtispec 329505846
sqrtispec1_sh 2733354
sqrtispec2 92583924
sqrtispec2_sh 271143
sqrtr_abs 91796451
sqrtremi 3792525
subiispec 3396567933
subiuspec 1593534777
truncr 2697600
umodiu 1428448416
xmpn_copy 1080640539
xmpn_zero 91796451

Generated by: LCOV version 1.16