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 30504-e6f76a2795) Lines: 1115 1153 96.7 %
Date: 2025-09-29 09:23:05 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 233521212
addiispec 4592070240
addshiftw 708431409
adduispec 2399886804
adduispec_offset 491229234
addumului 0
affir 323170965
catii 476211486
cmpiispec 4133046675
convi 317678
convi_dac 737406
diviiexact 396846201
divis 240009
divis_rem 65817915
diviuexact 22434666
diviuexact_i 29602704
diviuuexact 149898
divri 114247470
divrr 130378095
dvmdii 1687018752
equaliispec 199779165
floorr 5350179
incloop 35266008
incneg 50013
incpos 34963509
int_normalize 858266928
mantissa2nr 49151229
muliifft_dis 15702102
muliifft_dit 30956967
muliifft_spliti 168921
muliifft_unspliti 85290
muliispec 5396216970
muliispec_basecase 5169156522
muliispec_fft 83631
mulliifft_params 85290
muluispec 4851963393
muluui 166566
p_sqrtu1 95810568
p_sqrtu2 93076275
pari_kernel_close 786
pari_kernel_init 788
pari_kernel_version 2
red_montgomery 40629585
remi2n 20045895
resetloop 130656
roundr_up_ip 449252809
setloop 2248392
shiftispec 1289964264
sqrispec 951964344
sqrispec_basecase 942024510
sqrispec_fft 1659
sqrtispec 330910875
sqrtispec1_sh 2734293
sqrtispec2 92805132
sqrtispec2_sh 271143
sqrtr_abs 92017659
sqrtremi 3793464
subiispec 3402374397
subiuspec 1597627758
truncr 2700357
umodiu 1432084401
xmpn_copy 1085662518
xmpn_zero 92017659

Generated by: LCOV version 1.16