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 30603-c72b2decfc) Lines: 553 588 94.0 %
Date: 2026-01-07 09:21:48 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 5022030
gen_Pollard_log 49
gen_Shanks 756069
gen_Shanks_init 750693
gen_Shanks_log 1548905
gen_Shanks_sqrtl 87596
gen_Shanks_sqrtn 90212
gen_ellgens 2716
gen_ellgroup 146832
gen_factored_order 5488
gen_gener 15883
gen_lgener 123216
gen_order 4187164
gen_plog 6088438
gen_pow 15788884
gen_pow_fold 534955
gen_pow_fold_i 687545
gen_pow_i 42595794
gen_pow_init 147
gen_pow_table 53331
gen_powers 28216359
gen_powu 215652
gen_powu_fold 216219
gen_powu_fold_i 1243350
gen_powu_i 113459651
gen_product 61689661
gen_select_order 980
get_arith_Z 1425805
get_arith_ZZM 11613820
int_block 8039427
iter_rho 63884979
leftright_binary_powu 101284184
producttree_scheme 59319453
rec_order 12024154
sliding_window_pow 221039
sliding_window_powu 9140521

Generated by: LCOV version 1.16