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 30550-07450a7a86) Lines: 1115 1153 96.7 %
Date: 2025-11-18 09:22:37 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 271167
convi 317803
Zf_sqr 448896
convi_dac 737718
setloop 2248395
truncr 2554467
sqrtispec1_sh 2734398
sqrtremi 3793626
floorr 5203623
Zf_mul 15338496
muliifft_dis 15702102
remi2n 20046303
diviuexact 22431693
diviuexact_i 29602209
muliifft_dit 30956967
incpos 34964676
incloop 35267175
red_montgomery 40629555
mantissa2nr 49153359
divis_rem 65818395
sqrtr_abs 91760394
xmpn_zero 91760394
sqrtispec2 92547900
p_sqrtu2 92819067
p_sqrtu1 95553465
divri 114257103
divrr 130117386
Zf_add 187658496
Zf_mulsqrt2 187658496
Zf_sub 191070960
equaliispec 199786680
Zf_shift 206264025
absdiviu_rem 233635395
affir 323199759
sqrtispec 329861754
diviiexact 396856872
Zf_red_destroy 399271821
roundr_up_ip 442497727
catii 474627708
adduispec_offset 491207856
addshiftw 707635809
int_normalize 856685490
sqrispec_basecase 941242821
sqrispec 951182694
xmpn_copy 1082113380
shiftispec 1289076753
umodiu 1432395309
subiuspec 1597560402
dvmdii 1686219381
adduispec 2399979798
subiispec 3401649906
cmpiispec 4132333317
addiispec 4592059626
muluispec 4851978210
muliispec_basecase 5169161358
muliispec 5396219922

Generated by: LCOV version 1.16