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 30543-4febeb1110) Lines: 1115 1153 96.7 %
Date: 2025-11-11 09:22:28 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 317813
Zf_sqr 448896
convi_dac 737718
setloop 2248392
truncr 2554467
sqrtispec1_sh 2734293
sqrtremi 3793464
floorr 5203623
Zf_mul 15338496
muliifft_dis 15702102
remi2n 20046009
diviuexact 22434684
diviuexact_i 29602704
muliifft_dit 30956967
incpos 34963512
incloop 35266011
red_montgomery 40629585
mantissa2nr 49152789
divis_rem 65818026
sqrtr_abs 91758276
xmpn_zero 91758276
sqrtispec2 92545749
p_sqrtu2 92816892
p_sqrtu1 95551185
divri 114256635
divrr 130115067
Zf_add 187658496
Zf_mulsqrt2 187658496
Zf_sub 191070960
equaliispec 199780785
Zf_shift 206264025
absdiviu_rem 233629383
affir 323190069
sqrtispec 329855949
diviiexact 396851982
Zf_red_destroy 399271821
roundr_up_ip 442485676
catii 474620400
adduispec_offset 491230143
addshiftw 707635866
int_normalize 856676454
sqrispec_basecase 941236959
sqrispec 951176793
xmpn_copy 1082096268
shiftispec 1289070348
umodiu 1432384578
subiuspec 1597554999
dvmdii 1686229047
adduispec 2400007746
subiispec 3401617068
cmpiispec 4132282563
addiispec 4592083893
muluispec 4851994560
muliispec_basecase 5169182742
muliispec 5396243190

Generated by: LCOV version 1.16