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 30535-d1c72762fc) Lines: 1115 1153 96.7 %
Date: 2025-10-29 09:21:42 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 233521281
addiispec 4592075847
addshiftw 707631135
adduispec 2399891790
adduispec_offset 491230134
addumului 0
affir 323172861
catii 474610938
cmpiispec 4132130490
convi 317690
convi_dac 737568
diviiexact 396846201
divis 240009
divis_rem 65817915
diviuexact 22434684
diviuexact_i 29602704
diviuuexact 149898
divri 114247233
divrr 130105080
dvmdii 1686218754
equaliispec 199779165
floorr 5203623
incloop 35266008
incneg 50013
incpos 34963509
int_normalize 856666980
mantissa2nr 49152720
muliifft_dis 15702102
muliifft_dit 30956967
muliifft_spliti 168921
muliifft_unspliti 85290
muliispec 5396221263
muliispec_basecase 5169160815
muliispec_fft 83631
mulliifft_params 85290
muluispec 4851967713
muluui 166566
p_sqrtu1 95549016
p_sqrtu2 92814723
pari_kernel_close 786
pari_kernel_init 788
pari_kernel_version 2
red_montgomery 40629585
remi2n 20045946
resetloop 130656
roundr_up_ip 442442725
setloop 2248392
shiftispec 1289064081
sqrispec 951171192
sqrispec_basecase 941231358
sqrispec_fft 1659
sqrtispec 329849049
sqrtispec1_sh 2734293
sqrtispec2 92543580
sqrtispec2_sh 271143
sqrtr_abs 91756107
sqrtremi 3793464
subiispec 3401471643
subiuspec 1597413519
truncr 2554467
umodiu 1432084401
xmpn_copy 1082073870
xmpn_zero 91756107

Generated by: LCOV version 1.16