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 30401-87099e65a6) Lines: 1115 1153 96.7 %
Date: 2025-07-18 09:23:12 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
sqrtispec2_sh 274908
convi 317428
Zf_sqr 448896
convi_dac 736542
divis 751356
setloop 2248386
truncr 2698422
sqrtispec1_sh 2751273
sqrtremi 3814176
floorr 5347842
Zf_mul 15338496
muliifft_dis 15702102
remi2n 19992306
diviuexact 28739520
diviuexact_i 29566941
muliifft_dit 30956967
incpos 34963326
incloop 35265825
red_montgomery 40617075
mantissa2nr 49099899
divis_rem 65790498
sqrtr_abs 91796427
xmpn_zero 91796427
sqrtispec2 92583867
p_sqrtu2 92858775
p_sqrtu1 95610048
divri 114207165
divrr 130299924
Zf_add 187658496
Zf_mulsqrt2 187658496
Zf_sub 191070960
equaliispec 200363064
Zf_shift 206264025
absdiviu_rem 280533384
affir 322951134
sqrtispec 329505852
diviiexact 394993791
Zf_red_destroy 399271821
roundr_up_ip 448884007
catii 473843970
adduispec_offset 491216778
addshiftw 707156079
int_normalize 855889599
sqrispec_basecase 939111102
sqrispec 949050195
xmpn_copy 1080640743
shiftispec 1284732345
umodiu 1428624978
subiuspec 1593526263
dvmdii 1685241168
adduispec 2395863903
subiispec 3396531843
cmpiispec 4126888416
addiispec 4587040128
muluispec 4853112861
muliispec_basecase 5241311634
muliispec 5468325213

Generated by: LCOV version 1.16