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 - subgroup.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30764-6b81f1f3fa) Lines: 356 371 96.0 %
Date: 2026-03-24 09:26:44 Functions: 24 24 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
printtyp 35
forsubgroup 56
forsubgroup0 56
conjugate 70
expand_sub 329
subgrouplist 6762
dogroup 39298
dopsub 47243
init_powlist 47243
dopsubtyp 47271
addcell 52912
subgroupcondlist 55872
snf_clean 62727
update_cyc 62860
subgrouplist_i 62872
subgroup_engine 62908
set_bound 62923
get_snf 62929
loop 71323
treatsub 104603
list_fun 106235
inc 126372
weight 163931
packtoi 201705

Generated by: LCOV version 1.16