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 30766-abc2a9856c) Lines: 1308 1426 91.7 % Date: 2026-03-27 09:27:04 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
good_root_of_unity	105
FpX_is_irred	112
FpX_cubic_root	119
FpX_ispower	168
F2x_is_irred	238
FpX_edf	434
all_roots_mod_p	600
FpX_factor_Cantor	909
FpX_factor_Shoup	1008
FpX_ddf_Shoup	1022
FpX_oneroot_split	1043
FpX_edf_rec	1051
Flx_is_irred	1057
Flx_isirred_Cantor	1078
Flx_roots	1372
FpX_factor_2	1485
FpX_factor_deg2	1506
FpX_factor_Yun	1713
Flx_Xn1	2139
Flx_Xnm1	2249
FpX_factor_i	2429
Flx_oneroot	2520
Flx_ispower	3444
FpX_ddf_degree	4256
FpX_oneroot_i	5323
FpX_roots_i	8247
FpX_otherroot	10010
FpX_quad_root	14676
F2x_factor	15404
F2x_degfact_2	19677
F2xq_frobtrace	22943
F2x_Berlekamp_ker	23355
split_nonsquares	31527
split_squares	31527
F2x_edf_simple	33484
F2x_Berlekamp_i	35420
F2x_split_Berlekamp	35863
Flx_oneroot_split_pre	41626
FpX_degfact	47947
Flx_is_totally_split_i	81346
Flx_is_totally_split	81353
Flx_root_mod_2	94470
FpX_nbroots	153946
FpX_roots_mult	227549
FpX_oneroot	234115
FpX_split_part	250290
F2x_Cantor_i	303080
F2x_factor_Cantor	303080
F2x_factor_squarefree	338480
Flx_factor_squarefree	349112
FpX_factor_squarefree	349860
trivial_fact	354094
F2x_factor_Shoup	354236
F2x_ddf_simple	354237
Flx_edf_simple	411222
split_todo	426798
Flx_cubic_root	427955
FpX_roots	433756
F2x_quad_factortype	471717
split_done	477173
split_add_done	521235
ZX_rootmod_init	667871
Flx_nbfact_Frobenius_pre	669407
Flx_nbfact	669412
Flx_nbfact_pre	669412
Flx_factor	705520
Flx_edf	741257
F2x_factor_2	1187062
F2x_factor_deg2	1206753
Flx_edf_rec	1391869
Flx_nbfact_by_degree	1455871
F2x_factor_i	1545252
Flx_factor_Cantor	1607766
Flx_factor_Shoup	1681074
FE_concat	1911762
Flx_factor_2	2035881
ddf_to_nbfact	2352163
Flx_quad_factortype	2489452
Flx_degfact_2	2515492
FpX_factor	4425996
Flx_oneroot_pre	4434759
ZX_factmod_init	4474066
Flx_oneroot_pre_i	4476816
Flx_factor_deg2	4551336
Flx_nbroots	4768022
split_Flx_cut_out_roots	4876239
split_init	4885243
split_add	5262794
split_moveto_done	5263151
Flx_simplefact_Cantor	5351453
vddf_to_simplefact	5352177
Flx_factor_squarefree_pre	7311323
Flx_degfact	7863518
Flx_ddf_Shoup	9239490
Flx_factor_i	11588963
cmpGuGu	16451330
Flx_otherroot	16459871
Flx_roots_pre	26931893
Flx_quad_root	27800730
Fl_disc_bc	30281784

Generated by: LCOV version 1.16