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

Generated by: LCOV version 2.0-1