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: 2026-02-10 09:23:17 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 53332
gen_Shanks_sqrtl 87700
gen_Shanks_sqrtn 90323
gen_lgener 123321
d2_multiple 146671
gen_ellgroup 146832
gen_powu 215637
gen_powu_fold 216200
sliding_window_pow 221039
gen_pow_fold 534965
gen_pow_fold_i 687574
gen_Shanks_init 750693
gen_Shanks 756069
gen_powu_fold_i 1244073
get_arith_Z 1425823
gen_Shanks_log 1548960
gen_order 4187152
gen_PH_log 5022051
gen_plog 6088473
int_block 8038424
sliding_window_powu 9141686
get_arith_ZZM 11614233
rec_order 12024122
gen_pow 15788869
gen_powers 28219509
gen_pow_i 42838575
producttree_scheme 59319814
gen_product 61690653
iter_rho 64609557
leftright_binary_powu 101529816
gen_powu_i 113705297

Generated by: LCOV version 1.16