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 30381-2cde8c54db) Lines: 1115 1153 96.7 %
Date: 2025-07-09 09:23:19 Functions: 69 70 98.6 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Zf_add 187743168
Zf_mul 15346560
Zf_mulsqrt2 187743168
Zf_red_destroy 399451641
Zf_shift 206356764
Zf_sqr 448896
Zf_sub 191155650
absdiviu_rem 280532976
addiispec 4590630429
addshiftw 707455560
adduispec 2398028568
adduispec_offset 491214603
addumului 0
affir 322951125
catii 473843802
cmpiispec 4122219636
convi 317110
convi_dac 736512
diviiexact 395183286
divis 751344
divis_rem 65790327
diviuexact 28712127
diviuexact_i 29566749
diviuuexact 149898
divri 114207165
divrr 130299918
dvmdii 1687308774
equaliispec 200339307
floorr 5347839
incloop 35259978
incneg 50013
incpos 34957494
int_normalize 856562298
mantissa2nr 49099899
muliifft_dis 15710103
muliifft_dit 30972969
muliifft_spliti 169047
muliifft_unspliti 85353
muliispec 5473532316
muliispec_basecase 5246368725
muliispec_fft 83694
mulliifft_params 85353
muluispec 4857899667
muluui 166566
p_sqrtu1 95610003
p_sqrtu2 92858748
pari_kernel_close 786
pari_kernel_init 788
pari_kernel_version 2
red_montgomery 40596525
remi2n 19992291
resetloop 130656
roundr_up_ip 448883869
setloop 2247333
shiftispec 1284981219
sqrispec 949030260
sqrispec_basecase 939091170
sqrispec_fft 1659
sqrtispec 329505741
sqrtispec1_sh 2751255
sqrtispec2 92583840
sqrtispec2_sh 274908
sqrtr_abs 91796415
sqrtremi 3814143
subiispec 3393830238
subiuspec 1592334903
truncr 2698419
umodiu 1425715563
xmpn_copy 1080640383
xmpn_zero 91796415

Generated by: LCOV version 1.16