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 30674-be81ecfdd4) Lines: 553 588 94.0 %
Date: 2026-02-13 09:23:38 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 53334
gen_Shanks_sqrtl 87634
gen_Shanks_sqrtn 90255
gen_lgener 123256
d2_multiple 146671
gen_ellgroup 146832
gen_powu 215640
gen_powu_fold 216195
sliding_window_pow 221044
gen_pow_fold 534937
gen_pow_fold_i 687534
gen_Shanks_init 750693
gen_Shanks 756069
gen_powu_fold_i 1244037
get_arith_Z 1425826
gen_Shanks_log 1548913
gen_order 4187154
gen_PH_log 5022076
gen_plog 6088426
int_block 8037195
sliding_window_powu 9142798
get_arith_ZZM 11614234
rec_order 12024148
gen_pow 15788929
gen_powers 28220673
gen_pow_i 42132662
producttree_scheme 59319755
gen_product 61690582
iter_rho 62498214
leftright_binary_powu 100827543
gen_powu_i 113006138

Generated by: LCOV version 1.16