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: 2026-08-16 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 481849
sqrs 742871
divur 2456243
divir 3278537
truedvmdsi 6202318
dbltor 13604448
divrs 20390044
int2u 25996818
dblexpo 27752055
mulrrz_int 54818641
mantissa_real 56104019
invmod2BIL 61396755
trunc2nr 62904212
invr 64291209
invr_basecase 64291209
addmulii_gen 99909210
int2n 111051360
mulsr 132693384
truedvmdis 139236783
truedvmdii 143824326
addmulii 191169131
mulss 201188879
usqrt 258202602
rtodbl 312576677
addmulii_lg3 496943937
sqrz_i 568888636
sqrr 602917107
mulsi 621475716
sqru 648490124
mulrrz_3 666779203
mulur_2 757889677
mulrrz_3end 789819460
mulur 970968393
mulir 1024522384
divru 1165693673
mului 1168072042
affrr 1422909875
addmulii_inplace 1632976340
sqri 1964294408
shifti 2325468103
vals 2386694804
modii 3155630540
mulrrz_end 3786825930
mulrrz_i 3957518214
mulrr 4208138919
muluu 4811853246
mulii 22012769792

Generated by: LCOV version 2.0-1