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 - Zp.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30733-eb2d773d38) Lines: 734 873 84.1 %
Date: 2026-03-03 09:24:12 Functions: 69 80 86.2 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
BezoutPropagate 7441
BuildTree 198890
F3x_frobeniuslift 3717
Flx_Teichmuller 13909
Fp_pow2n 476
FqV_roots_from_deg1 96547
MultiLift 198921
ZpM_ZpC_gauss 0
ZpM_invlift 0
ZpXQM_prodFrobenius 77
ZpXQX_ZpXQXQ_liftroot 0
ZpXQX_digits 420
ZpXQX_divrem 131005
ZpXQX_liftfact 34699
ZpXQX_liftroot 231
ZpXQX_liftroot_vald 231
ZpXQX_liftroots 0
ZpXQX_liftroots_full 56
ZpXQX_roots 56
ZpXQ_HenselLift 503609
ZpXQ_RecTreeLift 1139609
ZpXQ_div 31584
ZpXQ_inv 165249
ZpXQ_invlift 186247
ZpXQ_log 20998
ZpXQ_log_to_ath 20998
ZpXQ_sqrt 0
ZpXQ_sqrtnlift 1155
ZpX_Frobenius 168
ZpX_HenselLift 1596843
ZpX_RecTreeLift 3940817
ZpX_ZpXQ_liftroot 1596
ZpX_ZpXQ_liftroot_ea 33569
ZpX_liftfact 246341
ZpX_liftroot 6397
ZpX_liftroots 139
ZpX_liftroots_full 96491
ZpX_roots 96352
Zp_div 107882
Zp_divlift 1450603
Zp_exp 107880
Zp_inv 1342721
Zp_invlift 1342721
Zp_log 196232
Zp_sqrt 1267980
Zp_sqrtlift 151431
Zp_sqrtnlift 260550
ZqX_ZqXQ_liftroot 35
ZqX_liftfact 46571
ZqX_liftroot 154
ZqX_roots 6265
Zq_sqrtnlift 0
_ZpM_eval 0
_ZpM_invd 0
_can5_invd 20531
_can5_invl 29568
_can5_iter 20531
_can5_lin 9037
_can5_mul 41363
_can5_sqr 41167
_can_invd 7476
_can_invl 11130
_can_iter 7476
_can_lin 3654
_inv_eval 482720
_inv_invd 482719
_shift 61894
_sqrtn_eval 1806
_sqrtn_invd 1806
bezout_lift_fact 1736
gen_ZpM_Dixon 0
gen_ZpM_Newton 0
gen_ZpX_Dixon 199115
gen_ZpX_Newton 251049
mul2n 616
polhensellift 28
polteichmuller 35
quadratic_prec_mask 4662575
sqr2n 749
to_ZX 0

Generated by: LCOV version 1.16