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 30582-6e9af8ee1d) Lines: 1308 1426 91.7 % Date: 2025-12-20 09:23:49 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
FpX_cubic_root	154
FpX_ispower	168
good_root_of_unity	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	1141
Flx_roots	1372
FpX_factor_2	1485
FpX_factor_deg2	1506
FpX_factor_Yun	1713
Flx_Xn1	2153
Flx_Xnm1	2258
FpX_factor_i	2429
Flx_oneroot	2499
Flx_ispower	3444
FpX_ddf_degree	4256
FpX_oneroot_i	5518
FpX_roots_i	8247
FpX_otherroot	10010
FpX_quad_root	14823
F2x_factor	14980
F2x_degfact_2	19684
F2xq_frobtrace	22794
F2x_Berlekamp_ker	23272
split_nonsquares	31699
split_squares	31700
F2x_edf_simple	33423
F2x_Berlekamp_i	35336
F2x_split_Berlekamp	35767
Flx_oneroot_split_pre	41781
FpX_degfact	47947
Flx_is_totally_split_i	81347
Flx_is_totally_split	81354
Flx_root_mod_2	94304
FpX_nbroots	153946
FpX_roots_mult	226478
FpX_oneroot	234283
FpX_split_part	250284
F2x_Cantor_i	303137
F2x_factor_Cantor	303137
F2x_factor_squarefree	338459
Flx_factor_squarefree	346578
FpX_factor_squarefree	347326
trivial_fact	354095
F2x_factor_Shoup	354236
F2x_ddf_simple	354245
Flx_edf_simple	411478
split_todo	432213
FpX_roots	433552
Flx_cubic_root	436569
F2x_quad_factortype	471644
split_done	486155
split_add_done	530184
ZX_rootmod_init	667836
Flx_nbfact	671395
Flx_nbfact_pre	671396
Flx_nbfact_Frobenius_pre	671415
Flx_factor	710030
Flx_edf	743978
F2x_factor_2	1186959
F2x_factor_deg2	1206658
Flx_edf_rec	1397302
Flx_nbfact_by_degree	1454828
F2x_factor_i	1545135
Flx_factor_Cantor	1610356
Flx_factor_Shoup	1683229
FE_concat	1914396
Flx_factor_2	2037558
ddf_to_nbfact	2356309
Flx_quad_factortype	2489499
Flx_degfact_2	2515569
FpX_factor	4426064
ZX_factmod_init	4474136
Flx_factor_deg2	4553039
Flx_oneroot_pre	4570918
Flx_oneroot_pre_i	4612748
Flx_nbroots	4769711
split_Flx_cut_out_roots	5022715
split_init	5031789
Flx_simplefact_Cantor	5348105
vddf_to_simplefact	5349662
split_add	5412601
split_moveto_done	5413079
Flx_factor_squarefree_pre	7307783
Flx_degfact	7860286
Flx_ddf_Shoup	9237937
Flx_factor_i	11589836
Flx_otherroot	16297677
cmpGuGu	16463749
Flx_roots_pre	26810906
Flx_quad_root	27662305
Fl_disc_bc	30146086

Generated by: LCOV version 1.16