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 30657-d14c2a9e4e) Lines: 555 588 94.4 %
Date: 2026-01-30 09:23:18 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 5022061
gen_Pollard_log 49
gen_Shanks 756069
gen_Shanks_init 750693
gen_Shanks_log 1548981
gen_Shanks_sqrtl 87607
gen_Shanks_sqrtn 90233
gen_ellgens 2716
gen_ellgroup 146832
gen_factored_order 5488
gen_gener 15883
gen_lgener 123233
gen_order 4187159
gen_plog 6088480
gen_pow 15788907
gen_pow_fold 534954
gen_pow_fold_i 687537
gen_pow_i 41808128
gen_pow_init 147
gen_pow_table 53331
gen_powers 28219491
gen_powu 215633
gen_powu_fold 216189
gen_powu_fold_i 1243356
gen_powu_i 112680205
gen_product 61690283
gen_select_order 980
get_arith_Z 1425821
get_arith_ZZM 11613884
int_block 8037490
iter_rho 61511325
leftright_binary_powu 100502746
producttree_scheme 59319845
rec_order 12024142
sliding_window_pow 221042
sliding_window_powu 9142242

Generated by: LCOV version 1.16