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 - FpX_factor.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30256-57c6c2b57f) Lines: 1308 1426 91.7 % Date: 2025-05-08 09:19:02 Functions: 114 124 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
F2x_degfact	0
Flx_ddf	0
Flx_ddf_pre	0
Flx_nbfact_Frobenius	0
FpX_ddf_i	0
FpX_edf_simple	0
FpX_is_totally_split	0
FpX_isirred_Cantor	0
FpX_nbfact	0
FpX_nbfact_Frobenius	0
F2x_ddf	7
F2x_ddf_to_ddf2	7
FpX_ddf	7
FpX_is_irred_2	7
ddf_to_ddf2	7
F2x_is_irred_2	14
Flx_oneroot_split	14
FpX_degfact_2	14
FpX_simplefact_Cantor	14
ddf_to_ddf2_i	14
FpX_quad_factortype	21
Flx_is_irred_2	56
prime_fact	70
Flx_oneroot_mod_2	98
FpX_is_irred	112
good_root_of_unity	112
FpX_cubic_root	119
FpX_ispower	168
F2x_is_irred	238
FpX_edf	431
all_roots_mod_p	600
FpX_factor_Cantor	905
FpX_factor_Shoup	1004
FpX_ddf_Shoup	1018
FpX_edf_rec	1036
FpX_oneroot_split	1036
Flx_is_irred	1057
Flx_isirred_Cantor	1078
Flx_roots	1372
FpX_factor_2	1485
FpX_factor_deg2	1506
FpX_factor_Yun	1695
Flx_Xn1	2069
Flx_Xnm1	2174
FpX_factor_i	2425
Flx_oneroot	2492
Flx_ispower	3444
FpX_ddf_degree	4256
FpX_oneroot_i	5183
FpX_roots_i	8240
FpX_otherroot	10010
FpX_quad_root	14529
F2x_factor	15044
F2x_degfact_2	19676
F2xq_frobtrace	20361
F2x_Berlekamp_ker	23308
F2x_edf_simple	29749
split_nonsquares	30103
split_squares	30103
F2x_Berlekamp_i	35364
F2x_split_Berlekamp	35805
Flx_oneroot_split_pre	38693
FpX_degfact	47947
Flx_is_totally_split_i	81346
Flx_is_totally_split	81353
Flx_root_mod_2	93055
FpX_nbroots	138259
FpX_roots_mult	226464
FpX_oneroot	233933
FpX_split_part	234323
F2x_Cantor_i	301594
F2x_factor_Cantor	301594
F2x_factor_squarefree	336943
Flx_factor_squarefree	346557
FpX_factor_squarefree	347291
trivial_fact	350025
F2x_factor_Shoup	352674
F2x_ddf_simple	352677
Flx_edf_simple	409012
Flx_cubic_root	417879
split_todo	418698
FpX_roots	432001
F2x_quad_factortype	452982
split_done	467849
split_add_done	511859
Flx_nbfact_pre	660396
Flx_nbfact	660397
Flx_nbfact_Frobenius_pre	660401
ZX_rootmod_init	665934
Flx_factor	680489
Flx_edf	717823
F2x_factor_2	1168167
F2x_factor_deg2	1187856
Flx_edf_rec	1355736
Flx_nbfact_by_degree	1452731
F2x_factor_i	1524816
Flx_factor_Cantor	1582136
Flx_factor_Shoup	1653796
FE_concat	1884641
Flx_factor_2	1933683
ddf_to_nbfact	2315845
Flx_quad_factortype	2488424
Flx_degfact_2	2514455
Flx_oneroot_pre	4104612
Flx_oneroot_pre_i	4143349
FpX_factor	4303139
ZX_factmod_init	4351212
Flx_nbroots	4391331
Flx_factor_deg2	4448069
split_Flx_cut_out_roots	5050904
split_init	5059910
Flx_simplefact_Cantor	5312463
vddf_to_simplefact	5314135
split_add	5423234
split_moveto_done	5423985
Flx_factor_squarefree_pre	7243720
Flx_degfact	7823606
Flx_ddf_Shoup	9158013
Flx_factor_i	11417708
Flx_otherroot	14754449
cmpGuGu	16286682
Flx_roots_pre	24645093
Flx_quad_root	24930726
Fl_disc_bc	27414277

Generated by: LCOV version 1.16