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 30831-19b50a36d0) Lines: 553 586 94.4 %
Date: 2026-04-21 09:26:02 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 5022087
gen_Pollard_log 49
gen_Shanks 756069
gen_Shanks_init 750693
gen_Shanks_log 1548960
gen_Shanks_sqrtl 87572
gen_Shanks_sqrtn 90193
gen_ellgens 2716
gen_ellgroup 146832
gen_factored_order 5488
gen_gener 15883
gen_lgener 123193
gen_order 4187108
gen_plog 6088376
gen_pow 11814500
gen_pow_fold 534975
gen_pow_fold_i 687633
gen_pow_i 39473488
gen_pow_init 147
gen_pow_table 53332
gen_powers 28336098
gen_powu 215645
gen_powu_fold 216217
gen_powu_fold_i 1244163
gen_powu_i 110425618
gen_product 62157494
gen_select_order 980
get_arith_Z 1425851
get_arith_ZZM 11614232
int_block 8036615
iter_rho 67659126
leftright_binary_powu 98192527
producttree_scheme 59720530
rec_order 12023552
sliding_window_pow 220839
sliding_window_powu 9143214

Generated by: LCOV version 1.16