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 30816-9c15a02229) Lines: 551 586 94.0 %
Date: 2026-04-15 09:25:30 Functions: 37 37 100.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
gen_Pollard_log 49
gen_pow_init 147
gen_select_order 980
gen_ellgens 2716
gen_factored_order 5488
gen_gener 15883
gen_pow_table 53331
gen_Shanks_sqrtl 87606
gen_Shanks_sqrtn 90223
gen_lgener 123228
d2_multiple 146671
gen_ellgroup 146832
gen_powu 215639
gen_powu_fold 216223
sliding_window_pow 220863
gen_pow_fold 534976
gen_pow_fold_i 687623
gen_Shanks_init 750693
gen_Shanks 756069
gen_powu_fold_i 1244167
get_arith_Z 1425854
gen_Shanks_log 1548968
gen_order 4187095
gen_PH_log 5022069
gen_plog 6088445
int_block 8039522
sliding_window_powu 9140581
get_arith_ZZM 11614204
gen_pow 11814536
rec_order 12023422
gen_powers 28339651
gen_pow_i 38854652
producttree_scheme 59720511
gen_product 62157390
iter_rho 65797785
leftright_binary_powu 97573360
gen_powu_i 109804261

Generated by: LCOV version 1.16