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 30561-4f4869c0e7) Lines: 553 588 94.0 %
Date: 2025-11-28 09:21:39 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 5022022
gen_Pollard_log 49
gen_Shanks 768042
gen_Shanks_init 762666
gen_Shanks_log 1549280
gen_Shanks_sqrtl 90002
gen_Shanks_sqrtn 92619
gen_ellgens 2716
gen_ellgroup 146832
gen_factored_order 5467
gen_gener 15883
gen_lgener 125618
gen_order 4251759
gen_plog 6088752
gen_pow 16036039
gen_pow_fold 535106
gen_pow_fold_i 693099
gen_pow_i 41837501
gen_pow_init 147
gen_pow_table 53333
gen_powers 28229627
gen_powu 215639
gen_powu_fold 216195
gen_powu_fold_i 1243480
gen_powu_i 112897224
gen_product 61653378
gen_select_order 980
get_arith_Z 1425805
get_arith_ZZM 11678378
int_block 8702445
iter_rho 60824883
leftright_binary_powu 100522003
producttree_scheme 59279019
rec_order 12178677
sliding_window_pow 226532
sliding_window_powu 9319818

Generated by: LCOV version 1.16