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 - bb_group.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30822-5d69697d32) Lines: 551 586 94.0 %
Date: 2026-04-17 09:24:44 Functions: 37 37 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
d2_multiple 146671
gen_PH_log 5022074
gen_Pollard_log 49
gen_Shanks 756069
gen_Shanks_init 750693
gen_Shanks_log 1549020
gen_Shanks_sqrtl 87611
gen_Shanks_sqrtn 90225
gen_ellgens 2716
gen_ellgroup 146832
gen_factored_order 5488
gen_gener 15883
gen_lgener 123230
gen_order 4187110
gen_plog 6088486
gen_pow 11814436
gen_pow_fold 534965
gen_pow_fold_i 687587
gen_pow_i 37356396
gen_pow_init 147
gen_pow_table 53326
gen_powers 28339906
gen_powu 215653
gen_powu_fold 216209
gen_powu_fold_i 1244146
gen_powu_i 108310168
gen_product 62157339
gen_select_order 980
get_arith_Z 1425831
get_arith_ZZM 11614256
int_block 8040010
iter_rho 61297575
leftright_binary_powu 96077917
producttree_scheme 59720462
rec_order 12023682
sliding_window_pow 220815
sliding_window_powu 9141838

Generated by: LCOV version 1.16