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: 2026-08-12 17:02:34 Functions: 96.2 % 52 50
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
addmulii 191209956
addmulii_gen 99937026
addmulii_inplace 1633059401
addmulii_lg3 496981115
affrr 1422925658
dblexpo 27752063
dblmantissa 0
dbltor 13604719
div0r 0
divir 3278537
divrs 20390124
divru 1165696829
divsi 175
divsr 798
divur 2456246
int2n 111058031
int2u 25996606
int2um1 8807
invmod2BIL 61396746
invr 64290031
invr_basecase 64290031
mantissa_real 56111006
modii 3155438833
mul0r 481866
mulii 22013106283
mulir 1024576510
mulrr 4206429194
mulrrz_3 666771858
mulrrz_3end 789814976
mulrrz_end 3786919989
mulrrz_i 3957597327
mulrrz_int 54818665
mulsi 621526791
mulsr 132697545
mulss 201188872
mului 1168129616
mulur 971018038
mulur_2 757934094
muluu 4812020984
rtodbl 312604874
shifti 2325510238
sqri 1964555325
sqrr 602911353
sqrs 742871
sqru 648511307
sqrz_i 568899094
truedvmdii 143863839
truedvmdis 139270776
truedvmdsi 6202318
trunc2nr 62908937
usqrt 258783287
vals 2386888660

Generated by: LCOV version 2.0-1