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 30660-09c6d0ed2e) Lines: 553 588 94.0 %
Date: 2026-02-03 09:23:21 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 53331
gen_Shanks_sqrtl 87605
gen_Shanks_sqrtn 90224
gen_lgener 123226
d2_multiple 146671
gen_ellgroup 146832
gen_powu 215644
gen_powu_fold 216196
sliding_window_pow 221025
gen_pow_fold 534946
gen_pow_fold_i 687540
gen_Shanks_init 750693
gen_Shanks 756069
gen_powu_fold_i 1244070
get_arith_Z 1425838
gen_Shanks_log 1548991
gen_order 4187159
gen_PH_log 5022063
gen_plog 6088448
int_block 8032816
sliding_window_powu 9143793
get_arith_ZZM 11613895
rec_order 12024146
gen_pow 15788905
gen_powers 28221664
gen_pow_i 41845923
producttree_scheme 59319729
iter_rho 61623468
gen_product 61690226
leftright_binary_powu 100541498
gen_powu_i 112720034

Generated by: LCOV version 1.16