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 30764-6b81f1f3fa) Lines: 553 586 94.4 %
Date: 2026-03-24 09:26:44 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 87612
gen_Shanks_sqrtn 90233
gen_lgener 123236
d2_multiple 146671
gen_ellgroup 146832
gen_powu 215635
gen_powu_fold 216209
sliding_window_pow 220820
gen_pow_fold 534972
gen_pow_fold_i 687575
gen_Shanks_init 750693
gen_Shanks 756069
gen_powu_fold_i 1244138
get_arith_Z 1425844
gen_Shanks_log 1548981
gen_order 4187115
gen_PH_log 5022079
gen_plog 6088432
int_block 8030188
sliding_window_powu 9139317
gen_pow 11573780
get_arith_ZZM 11614257
rec_order 12023773
gen_powers 28249095
gen_pow_i 39396245
producttree_scheme 59542221
gen_product 61976700
iter_rho 67427685
leftright_binary_powu 98112711
gen_powu_i 110344623

Generated by: LCOV version 1.16