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_indep.c (source / functions) Coverage Total Hit
Test: PARI/GP v2.19.0 lcov report (development 31092-e6893b0017) Lines: 94.3 % 562 530
Test Date: 2026-09-17 17:02:44 Functions: 96.2 % 52 50
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
addmulii 191210116
addmulii_gen 99936214
addmulii_inplace 1633097853
addmulii_lg3 496983669
affrr 1422922577
dblexpo 27752028
dblmantissa 0
dbltor 13604678
div0r 0
divir 3278537
divrs 20390108
divru 1165694662
divsi 175
divsr 798
divur 2456247
int2n 111055959
int2u 25996683
int2um1 8807
invmod2BIL 61396729
invr 64290130
invr_basecase 64290130
mantissa_real 56110932
modii 3154972395
mul0r 481863
mulii 22012826078
mulir 1024564257
mulrr 4206412162
mulrrz_3 666759237
mulrrz_3end 789797461
mulrrz_end 3786903656
mulrrz_i 3957570420
mulrrz_int 54818665
mulsi 621542647
mulsr 132691967
mulss 201188911
mului 1168011048
mulur 971008717
mulur_2 757920274
muluu 4811981357
rtodbl 312596490
shifti 2325326441
sqri 1964049971
sqrr 602905199
sqrs 742871
sqru 648496921
sqrz_i 568892153
truedvmdii 143860946
truedvmdis 139267926
truedvmdsi 6202318
trunc2nr 62907321
usqrt 258441290
vals 2386817848

Generated by: LCOV version 2.0-1