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 30711-c92306d4b4) Lines: 552 586 94.2 %
Date: 2026-02-25 09:24:21 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 5022061
gen_Pollard_log 49
gen_Shanks 756069
gen_Shanks_init 750693
gen_Shanks_log 1548902
gen_Shanks_sqrtl 87616
gen_Shanks_sqrtn 90235
gen_ellgens 2716
gen_ellgroup 146832
gen_factored_order 5488
gen_gener 15883
gen_lgener 123234
gen_order 4187129
gen_plog 6088433
gen_pow 11574097
gen_pow_fold 534954
gen_pow_fold_i 687535
gen_pow_i 38237466
gen_pow_init 147
gen_pow_table 53333
gen_powers 28221075
gen_powu 215643
gen_powu_fold 216185
gen_powu_fold_i 1244054
gen_powu_i 109129233
gen_product 61725851
gen_select_order 980
get_arith_Z 1425811
get_arith_ZZM 11614182
int_block 8039145
iter_rho 63942438
leftright_binary_powu 96895894
producttree_scheme 59347891
rec_order 12023656
sliding_window_pow 220790
sliding_window_powu 9141630

Generated by: LCOV version 1.16