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 - basemath - digits.c (source / functions) Coverage Total Hit
Test: PARI/GP v2.18.1 lcov report (development 31042-0fbe168e69) Lines: 95.6 % 204 195
Test Date: 2026-07-23 17:04:59 Functions: 100.0 % 27 27
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
ZV_in_range 28028
_addii 420595
_dvmdii 443
_mulii 833894
_sqri 1374238
check_basis 224469
digits 112175
digits_dacsmall 479894
digits_i 112154
digits_neg 56028
digits_pos 112091
fromdigits 112273
fromdigitsu 1042127
fromdigitsu_dac 3763019
fromdigitsu_i 1042141
gen_digits 15540
gen_digits_dac 330426
gen_digits_i 15597
gen_fromdigits 88928
gen_fromdigits_dac 972580
get_vB 1201867
set_vexp 4059865
sumdigits 35
sumdigits0 140
sumdigits_block 14
sumdigitsu 355152
zv_nonnegative 21

Generated by: LCOV version 2.0-1