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 30107-5d3c5ac62a) Lines: 1308 1426 91.7 % Date: 2025-04-01 09:20:36 Functions: 114 124 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
F2x_Berlekamp_i	35364
F2x_Berlekamp_ker	23307
F2x_Cantor_i	301558
F2x_ddf	7
F2x_ddf_simple	352643
F2x_ddf_to_ddf2	7
F2x_degfact	0
F2x_degfact_2	19677
F2x_edf_simple	29746
F2x_factor	15045
F2x_factor_2	1168099
F2x_factor_Cantor	301558
F2x_factor_Shoup	352638
F2x_factor_deg2	1187792
F2x_factor_i	1524710
F2x_factor_squarefree	336907
F2x_is_irred	238
F2x_is_irred_2	14
F2x_quad_factortype	452929
F2x_split_Berlekamp	35804
F2xq_frobtrace	20356
FE_concat	1884620
Fl_disc_bc	27449919
Flx_Xn1	2069
Flx_Xnm1	2174
Flx_cubic_root	417735
Flx_ddf	0
Flx_ddf_Shoup	9160509
Flx_ddf_pre	0
Flx_degfact	7824647
Flx_degfact_2	2514470
Flx_edf	717833
Flx_edf_rec	1355717
Flx_edf_simple	408985
Flx_factor	680252
Flx_factor_2	1933342
Flx_factor_Cantor	1582137
Flx_factor_Shoup	1653796
Flx_factor_deg2	4447748
Flx_factor_i	11418593
Flx_factor_squarefree	346557
Flx_factor_squarefree_pre	7245080
Flx_is_irred	1057
Flx_is_irred_2	56
Flx_is_totally_split	81354
Flx_is_totally_split_i	81347
Flx_isirred_Cantor	1078
Flx_ispower	3444
Flx_nbfact	660278
Flx_nbfact_Frobenius	0
Flx_nbfact_Frobenius_pre	660287
Flx_nbfact_by_degree	1452836
Flx_nbfact_pre	660279
Flx_nbroots	4391067
Flx_oneroot	2492
Flx_oneroot_mod_2	91
Flx_oneroot_pre	4110587
Flx_oneroot_pre_i	4149320
Flx_oneroot_split	14
Flx_oneroot_split_pre	38696
Flx_otherroot	14743458
Flx_quad_factortype	2488428
Flx_quad_root	24961848
Flx_root_mod_2	93053
Flx_roots	1372
Flx_roots_pre	24674581
Flx_simplefact_Cantor	5313623
FpX_cubic_root	119
FpX_ddf	7
FpX_ddf_Shoup	1018
FpX_ddf_degree	4256
FpX_ddf_i	0
FpX_degfact	47947
FpX_degfact_2	14
FpX_edf	431
FpX_edf_rec	1036
FpX_edf_simple	0
FpX_factor	4302954
FpX_factor_2	1485
FpX_factor_Cantor	905
FpX_factor_Shoup	1004
FpX_factor_Yun	1695
FpX_factor_deg2	1506
FpX_factor_i	2425
FpX_factor_squarefree	347291
FpX_is_irred	112
FpX_is_irred_2	7
FpX_is_totally_split	0
FpX_isirred_Cantor	0
FpX_ispower	168
FpX_nbfact	0
FpX_nbfact_Frobenius	0
FpX_nbroots	138259
FpX_oneroot	233912
FpX_oneroot_i	5181
FpX_oneroot_split	1036
FpX_otherroot	10010
FpX_quad_factortype	21
FpX_quad_root	14529
FpX_roots	431991
FpX_roots_i	8240
FpX_roots_mult	226464
FpX_simplefact_Cantor	14
FpX_split_part	234324
ZX_factmod_init	4351027
ZX_rootmod_init	665903
all_roots_mod_p	600
cmpGuGu	16287105
ddf_to_ddf2	7
ddf_to_ddf2_i	14
ddf_to_nbfact	2315740
good_root_of_unity	112
prime_fact	70
split_Flx_cut_out_roots	5050268
split_add	5422530
split_add_done	511859
split_done	467847
split_init	5059560
split_moveto_done	5422153
split_nonsquares	30102
split_squares	30102
split_todo	418658
trivial_fact	350021
vddf_to_simplefact	5314957

Generated by: LCOV version 1.16