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 30733-eb2d773d38) Lines: 551 586 94.0 %
Date: 2026-03-03 09:24:12 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 53329
gen_Shanks_sqrtl 87637
gen_Shanks_sqrtn 90254
gen_lgener 123259
d2_multiple 146671
gen_ellgroup 146832
gen_powu 215574
gen_powu_fold 216218
sliding_window_pow 220820
gen_pow_fold 534964
gen_pow_fold_i 687564
gen_Shanks_init 750693
gen_Shanks 756069
gen_powu_fold_i 1244024
get_arith_Z 1425826
gen_Shanks_log 1548997
gen_order 4187131
gen_PH_log 5022057
gen_plog 6088504
int_block 8038786
sliding_window_powu 9141995
gen_pow 11574128
get_arith_ZZM 11614230
rec_order 12023778
gen_powers 28227566
gen_pow_i 38018562
producttree_scheme 59345727
gen_product 61721115
iter_rho 63287889
leftright_binary_powu 96687599
gen_powu_i 108921349

Generated by: LCOV version 1.16