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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - factcyclo.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30702-bddb8d6928) Lines: 916 1079 84.9 % Date: 2026-02-23 02:23:56 Functions: 77 85 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
Flx_factcyclo_fact	0
Flx_factcyclo_lift	0
Flx_factcyclo_prime_power	0
Q_size	0
ZX_chinese_center	0
ZX_size	0
ZX_to_nx	0
header	0
Flx_factcyclo_newton_general_new3	6
FpX_factcyclo_fact	6
FpX_factcyclo_lift	6
use_general	6
FpX_factcyclo_prime_power	12
use_newton_general	12
FpX_factcyclo	30
FpX_factcyclo_newton_general_new3	46
get_kT_all	52
get_kTdiv	52
kT_from_kt_new	52
newton_general_new_pre3	52
update_dfm	60
Flx_factcyclo	220
Fl_mk_v_t_p3	240
Flx_pol_newton_general_new3	288
FpX_pol_newton_general_new3	345
Fp_mk_v_t_p3	393
ZpX_roots_nonsep	712
FpX_factcyclo_gen	1188
FpX_factcyclo_newton_pre	1682
FpX_factcyclo_newton_general	2144
ZX_Zp_liftroots	2148
FpX_factcyclo_prime_power_i	2356
FpX_split	2472
FpX_1st_lift	2815
FpX_pol_newton	3146
FpX_1st_lift_2	3968
FpX_factcyclo_just_conductor	5054
FpX_pol_newton_general	6091
FpX_conductor_lift	9274
FpX_factcyclo_i	9442
FpX_Newton_perm	9582
FpX_lift	10428
Fp_next_gen3	10937
Flx_factcyclo_newton_general	11400
get_kT	13544
Flv_FlvV_factorback	13596
QXV_den_pval	13596
get_GH_gen	13596
get_i_t	13596
get_vT	13596
Fl_next_gen3	17520
Flx_pol_newton_general	20600
Flx_factcyclo_newton_pre	26992
Flx_factcyclo_prime_power_i	26992
get_vG	27192
FpX_factcyclo_newton_power	28674
gausspol	28674
set_E	28674
set_R	28674
Flx_split	29210
set_e0_e1	29348
Flx_1st_lift	36525
Flx_factcyclo_gen	37610
mk_v_t_el	41362
ZpX_roots_all	42270
get_d0_d1	42270
get_n_el	42270
start_el_n	42270
Flx_pol_newton	49096
Flx_1st_lift_2	56408
get_G	57348
FpX_degsub	66183
use_newton	67299
Flx_Newton_perm	69984
Flx_factcyclo_just_conductor	76008
QX_den_pval	79727
FpX_factcyclo_just_conductor_init	81062
set_action	81062
list_el_n	84540
gausspol_el	86096
Flx_conductor_lift	120521
Flx_factcyclo_i	133974
Flx_lift	135300
factormodcyclo	143166
cmpGuGu	1477106

Generated by: LCOV version 1.16