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) Coverage Total Hit
Test: PARI/GP v2.18.1 lcov report (development 31041-bd73e9fcdd) Lines: 94.4 % 586 553
Test Date: 2026-07-22 22:45:42 Functions: 100.0 % 37 37
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
gen_Pollard_log 49
gen_pow_init 147
gen_select_order 973
gen_ellgens 2716
gen_factored_order 5488
gen_gener 15883
gen_pow_table 53332
gen_Shanks_sqrtl 88528
gen_Shanks_sqrtn 91239
gen_lgener 124147
d2_multiple 146671
gen_ellgroup 146832
gen_powu_fold 215447
gen_powu 215991
sliding_window_pow 221070
gen_pow_fold 534898
gen_pow_fold_i 687545
gen_Shanks_init 763031
gen_Shanks 768407
gen_powu_fold_i 1273486
get_arith_Z 1425271
gen_Shanks_log 1548779
gen_order 4418588
gen_PH_log 5021931
gen_plog 6088242
int_block 8031441
sliding_window_powu 9344424
get_arith_ZZM 11845175
gen_pow 12042859
rec_order 13148794
gen_powers 28545512
gen_pow_i 38209847
producttree_scheme 59884800
gen_product 62394662
iter_rho 63149955
leftright_binary_powu 97549305
gen_powu_i 110027920

Generated by: LCOV version 2.0-1