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

Generated by: LCOV version 2.0-1