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 30773-2078653b96) Lines: 553 586 94.4 %
Date: 2026-04-02 09:26:53 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 5022072
gen_Pollard_log 49
gen_Shanks 756069
gen_Shanks_init 750693
gen_Shanks_log 1548992
gen_Shanks_sqrtl 87541
gen_Shanks_sqrtn 90163
gen_ellgens 2716
gen_ellgroup 146832
gen_factored_order 5488
gen_gener 15883
gen_lgener 123163
gen_order 4187099
gen_plog 6088429
gen_pow 11814491
gen_pow_fold 534967
gen_pow_fold_i 687620
gen_pow_i 39114986
gen_pow_init 147
gen_pow_table 53327
gen_powers 28242971
gen_powu 215644
gen_powu_fold 216208
gen_powu_fold_i 1244134
gen_powu_i 110065059
gen_product 61976161
gen_select_order 980
get_arith_Z 1425835
get_arith_ZZM 11614198
int_block 8021083
iter_rho 66577095
leftright_binary_powu 97834407
producttree_scheme 59541936
rec_order 12023285
sliding_window_pow 220822
sliding_window_powu 9139076

Generated by: LCOV version 1.16