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 30483-b6b1f87815) Lines: 1115 1153 96.7 %
Date: 2025-09-12 09:24:16 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 233503497
addiispec 4590935610
addshiftw 708040533
adduispec 2399735577
adduispec_offset 491224647
addumului 0
affir 323161212
catii 475608126
cmpiispec 4131994605
convi 317635
convi_dac 737406
diviiexact 396797913
divis 240030
divis_rem 65816856
diviuexact 22434063
diviuexact_i 29602416
diviuuexact 149898
divri 114245814
divrr 130340796
dvmdii 1686397263
equaliispec 200367168
floorr 5348361
incloop 35266008
incneg 50013
incpos 34963509
int_normalize 857662008
mantissa2nr 49147569
muliifft_dis 15702102
muliifft_dit 30956967
muliifft_spliti 168921
muliifft_unspliti 85290
muliispec 5395636767
muliispec_basecase 5168622216
muliispec_fft 83631
mulliifft_params 85290
muluispec 4850622894
muluui 166566
p_sqrtu1 95743863
p_sqrtu2 93010497
pari_kernel_close 786
pari_kernel_init 788
pari_kernel_version 2
red_montgomery 40617075
remi2n 20034225
resetloop 130656
roundr_up_ip 449032861
setloop 2248392
shiftispec 1289482680
sqrispec 951596412
sqrispec_basecase 941657064
sqrispec_fft 1659
sqrtispec 330543417
sqrtispec1_sh 2733366
sqrtispec2 92739354
sqrtispec2_sh 271143
sqrtr_abs 91951881
sqrtremi 3792537
subiispec 3401416419
subiuspec 1597468029
truncr 2699001
umodiu 1431816489
xmpn_copy 1084355457
xmpn_zero 91951881

Generated by: LCOV version 1.16