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 30702-bddb8d6928) Lines: 1308 1426 91.7 % Date: 2026-02-23 02:23:56 Functions: 114 124 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
F2x_Berlekamp_i	29851
F2x_Berlekamp_ker	19725
F2x_Cantor_i	255530
F2x_ddf	6
F2x_ddf_simple	299098
F2x_ddf_to_ddf2	6
F2x_degfact	0
F2x_degfact_2	16797
F2x_edf_simple	28321
F2x_factor	12690
F2x_factor_2	1014218
F2x_factor_Cantor	255530
F2x_factor_Shoup	299092
F2x_factor_deg2	1031027
F2x_factor_i	1316408
F2x_factor_squarefree	285369
F2x_is_irred	204
F2x_is_irred_2	12
F2x_quad_factortype	403006
F2x_split_Berlekamp	30179
F2xq_frobtrace	19383
FE_concat	1603172
Fl_disc_bc	23552533
Flx_Xn1	1790
Flx_Xnm1	1877
Flx_cubic_root	344516
Flx_ddf	0
Flx_ddf_Shoup	7854944
Flx_ddf_pre	0
Flx_degfact	6709940
Flx_degfact_2	2148717
Flx_edf	622938
Flx_edf_rec	1163611
Flx_edf_simple	344819
Flx_factor	598456
Flx_factor_2	1731492
Flx_factor_Cantor	1346855
Flx_factor_Shoup	1408579
Flx_factor_deg2	3880257
Flx_factor_i	9855900
Flx_factor_squarefree	297007
Flx_factor_squarefree_pre	6208406
Flx_is_irred	906
Flx_is_irred_2	48
Flx_is_totally_split	69732
Flx_is_totally_split_i	69726
Flx_isirred_Cantor	924
Flx_ispower	2483
Flx_nbfact	570286
Flx_nbfact_Frobenius	0
Flx_nbfact_Frobenius_pre	570286
Flx_nbfact_by_degree	1242539
Flx_nbfact_pre	570286
Flx_nbroots	3617804
Flx_oneroot	1995
Flx_oneroot_mod_2	84
Flx_oneroot_pre	3375274
Flx_oneroot_pre_i	3406665
Flx_oneroot_split	10
Flx_oneroot_split_pre	31391
Flx_otherroot	12654461
Flx_quad_factortype	2126445
Flx_quad_root	21426088
Flx_root_mod_2	80177
Flx_roots	1157
Flx_roots_pre	20541351
Flx_simplefact_Cantor	4562061
FpX_cubic_root	102
FpX_ddf	6
FpX_ddf_Shoup	890
FpX_ddf_degree	3648
FpX_ddf_i	0
FpX_degfact	38412
FpX_degfact_2	12
FpX_edf	377
FpX_edf_rec	920
FpX_edf_simple	0
FpX_factor	3747888
FpX_factor_2	1270
FpX_factor_Cantor	787
FpX_factor_Shoup	878
FpX_factor_Yun	1533
FpX_factor_deg2	1288
FpX_factor_i	2087
FpX_factor_squarefree	297705
FpX_is_irred	96
FpX_is_irred_2	6
FpX_is_totally_split	0
FpX_isirred_Cantor	0
FpX_ispower	144
FpX_nbfact	0
FpX_nbfact_Frobenius	0
FpX_nbroots	131965
FpX_oneroot	200627
FpX_oneroot_i	4582
FpX_oneroot_split	894
FpX_otherroot	8824
FpX_quad_factortype	18
FpX_quad_root	12840
FpX_roots	364495
FpX_roots_i	7228
FpX_roots_mult	194121
FpX_simplefact_Cantor	12
FpX_split_part	208275
ZX_factmod_init	3786402
ZX_rootmod_init	565122
all_roots_mod_p	512
cmpGuGu	13866752
ddf_to_ddf2	6
ddf_to_ddf2_i	12
ddf_to_nbfact	1980260
good_root_of_unity	90
prime_fact	51
split_Flx_cut_out_roots	3625946
split_add	3926642
split_add_done	404549
split_done	368903
split_init	3633174
split_moveto_done	3926630
split_nonsquares	26660
split_squares	26660
split_todo	330790
trivial_fact	290867
vddf_to_simplefact	4562181

Generated by: LCOV version 1.16