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 30530-11e908049b) Lines: 1115 1153 96.7 %
Date: 2025-10-13 09:22:58 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 240009
sqrtispec2_sh 271143
convi 317693
Zf_sqr 448896
convi_dac 737568
setloop 2248392
truncr 2701041
sqrtispec1_sh 2734293
sqrtremi 3793464
floorr 5350197
Zf_mul 15338496
muliifft_dis 15702102
remi2n 20045946
diviuexact 22434684
diviuexact_i 29602704
muliifft_dit 30956967
incpos 34963509
incloop 35266008
red_montgomery 40629585
mantissa2nr 49152720
divis_rem 65817915
sqrtr_abs 92018865
xmpn_zero 92018865
sqrtispec2 92806338
p_sqrtu2 93077481
p_sqrtu1 95811774
divri 114247233
divrr 130387773
Zf_add 187658496
Zf_mulsqrt2 187658496
Zf_sub 191070960
equaliispec 199779165
Zf_shift 206264025
absdiviu_rem 233521281
affir 323172861
sqrtispec 330914361
diviiexact 396846201
Zf_red_destroy 399271821
roundr_up_ip 449255224
catii 476216046
adduispec_offset 491230134
addshiftw 708433689
int_normalize 858272088
sqrispec_basecase 942033912
sqrispec 951973746
xmpn_copy 1085672583
shiftispec 1289977635
umodiu 1432084401
subiuspec 1597635519
dvmdii 1687021308
adduispec 2399891790
subiispec 3402385197
cmpiispec 4133058783
addiispec 4592075847
muluispec 4851967713
muliispec_basecase 5169160815
muliispec 5396221263

Generated by: LCOV version 1.16