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: 2026-11-12 17:03:01 Functions: 96.2 % 52 50
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
addmulii 191205279
addmulii_gen 99944097
addmulii_inplace 1633078143
addmulii_lg3 496987629
affrr 1422908652
dblexpo 27752068
dblmantissa 0
dbltor 13604513
div0r 0
divir 3278537
divrs 20390049
divru 1165696266
divsi 175
divsr 798
divur 2456242
int2n 111058652
int2u 25996542
int2um1 8807
invmod2BIL 61397534
invr 64291891
invr_basecase 64291891
mantissa_real 56114458
modii 3155485743
mul0r 481851
mulii 22013510707
mulir 1024564644
mulrr 4206528245
mulrrz_3 666756876
mulrrz_3end 789794394
mulrrz_end 3786981408
mulrrz_i 3957641389
mulrrz_int 54818641
mulsi 621554509
mulsr 132693118
mulss 201188911
mului 1168106312
mulur 971008067
mulur_2 757919788
muluu 4812199070
rtodbl 312617583
shifti 2325460587
sqri 1964428624
sqrr 602910642
sqrs 742871
sqru 648497757
sqrz_i 568895873
truedvmdii 143872662
truedvmdis 139278104
truedvmdsi 6202318
trunc2nr 62905644
usqrt 258689080
vals 2386880745

Generated by: LCOV version 2.0-1