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 30552-d1d0643eee) Lines: 1308 1426 91.7 % Date: 2025-11-22 09:22:46 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	434
all_roots_mod_p	600
FpX_factor_Cantor	909
FpX_factor_Shoup	1008
FpX_ddf_Shoup	1022
FpX_edf_rec	1051
Flx_is_irred	1057
Flx_isirred_Cantor	1078
FpX_oneroot_split	1176
Flx_roots	1372
FpX_factor_2	1485
FpX_factor_deg2	1506
FpX_factor_Yun	1713
Flx_Xn1	2132
Flx_Xnm1	2237
FpX_factor_i	2429
Flx_oneroot	2499
Flx_ispower	3444
FpX_ddf_degree	4256
FpX_oneroot_i	5554
FpX_roots_i	8247
FpX_otherroot	10010
FpX_quad_root	14795
F2x_factor	15038
F2x_degfact_2	19691
F2xq_frobtrace	22840
F2x_Berlekamp_ker	23315
split_nonsquares	31764
split_squares	31764
F2x_edf_simple	33403
F2x_Berlekamp_i	35377
F2x_split_Berlekamp	35817
Flx_oneroot_split_pre	40406
FpX_degfact	47947
Flx_is_totally_split_i	81345
Flx_is_totally_split	81352
Flx_root_mod_2	94298
FpX_nbroots	153946
FpX_roots_mult	226478
FpX_oneroot	234318
FpX_split_part	250290
F2x_Cantor_i	302990
F2x_factor_Cantor	302990
F2x_factor_squarefree	338356
Flx_factor_squarefree	346578
FpX_factor_squarefree	347326
trivial_fact	353909
F2x_factor_Shoup	354085
F2x_ddf_simple	354087
Flx_edf_simple	410942
split_todo	428462
FpX_roots	433558
Flx_cubic_root	434655
F2x_quad_factortype	471647
split_done	482415
split_add_done	526444
ZX_rootmod_init	667876
Flx_nbfact	670814
Flx_nbfact_pre	670814
Flx_nbfact_Frobenius_pre	670818
Flx_factor	709497
Flx_edf	743186
F2x_factor_2	1186927
F2x_factor_deg2	1206634
Flx_edf_rec	1395598
Flx_nbfact_by_degree	1454905
F2x_factor_i	1545004
Flx_factor_Cantor	1609328
Flx_factor_Shoup	1682207
FE_concat	1913243
Flx_factor_2	2037147
ddf_to_nbfact	2354676
Flx_quad_factortype	2489767
Flx_degfact_2	2515749
FpX_factor	4424963
Flx_oneroot_pre	4443300
ZX_factmod_init	4473043
Flx_oneroot_pre_i	4483670
Flx_factor_deg2	4552828
Flx_nbroots	4769227
split_Flx_cut_out_roots	5025232
split_init	5034253
Flx_simplefact_Cantor	5345568
vddf_to_simplefact	5347652
split_add	5412355
split_moveto_done	5412849
Flx_factor_squarefree_pre	7304104
Flx_degfact	7858128
Flx_ddf_Shoup	9233364
Flx_factor_i	11586232
Flx_otherroot	15633661
cmpGuGu	16454011
Flx_roots_pre	25844471
Flx_quad_root	26555867
Fl_disc_bc	29039879

Generated by: LCOV version 1.16