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 30462-6c568f4018) Lines: 1308 1426 91.7 % Date: 2025-08-10 09:24:05 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	154
FpX_cubic_root	168
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
Flx_is_irred	1057
Flx_isirred_Cantor	1078
FpX_oneroot_split	1175
Flx_roots	1372
FpX_factor_2	1485
FpX_factor_deg2	1506
FpX_factor_Yun	1695
Flx_Xn1	2132
Flx_Xnm1	2237
FpX_factor_i	2425
Flx_oneroot	2499
Flx_ispower	3444
FpX_ddf_degree	4256
FpX_oneroot_i	5547
FpX_roots_i	8240
FpX_otherroot	10010
FpX_quad_root	14795
F2x_factor	15035
F2x_degfact_2	19683
F2xq_frobtrace	22808
F2x_Berlekamp_ker	23315
split_nonsquares	31763
split_squares	31763
F2x_edf_simple	33400
F2x_Berlekamp_i	35378
F2x_split_Berlekamp	35814
Flx_oneroot_split_pre	40396
FpX_degfact	47947
Flx_is_totally_split_i	81347
Flx_is_totally_split	81354
Flx_root_mod_2	94291
FpX_nbroots	153946
FpX_roots_mult	226464
FpX_oneroot	234297
FpX_split_part	250289
F2x_Cantor_i	303000
F2x_factor_Cantor	303000
F2x_factor_squarefree	338365
Flx_factor_squarefree	346557
FpX_factor_squarefree	347291
trivial_fact	353914
F2x_factor_Shoup	354106
F2x_ddf_simple	354108
Flx_edf_simple	410934
split_todo	428551
FpX_roots	433522
Flx_cubic_root	434846
F2x_quad_factortype	471605
split_done	482515
split_add_done	526531
ZX_rootmod_init	667819
Flx_nbfact	670798
Flx_nbfact_pre	670798
Flx_nbfact_Frobenius_pre	670802
Flx_factor	709475
Flx_edf	743199
F2x_factor_2	1186877
F2x_factor_deg2	1206574
Flx_edf_rec	1395364
Flx_nbfact_by_degree	1454729
F2x_factor_i	1544954
Flx_factor_Cantor	1609231
Flx_factor_Shoup	1682108
FE_concat	1913156
Flx_factor_2	2034905
ddf_to_nbfact	2354573
Flx_quad_factortype	2489328
Flx_degfact_2	2515364
FpX_factor	4422641
Flx_oneroot_pre	4450315
ZX_factmod_init	4470709
Flx_oneroot_pre_i	4490746
Flx_factor_deg2	4550207
Flx_nbroots	4768763
split_Flx_cut_out_roots	5024963
split_init	5034154
Flx_simplefact_Cantor	5345689
vddf_to_simplefact	5347469
split_add	5411581
split_moveto_done	5412073
Flx_factor_squarefree_pre	7304018
Flx_degfact	7857749
Flx_ddf_Shoup	9232472
Flx_factor_i	11583495
Flx_otherroot	15641280
cmpGuGu	16452803
Flx_roots_pre	25859622
Flx_quad_root	26579703
Fl_disc_bc	29069290

Generated by: LCOV version 1.16