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 30622-caa25a75db) Lines: 1308 1426 91.7 % Date: 2026-01-22 09:18:00 Functions: 114 124 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
F2x_Berlekamp_i	32787
F2x_Berlekamp_ker	21988
F2x_Cantor_i	284215
F2x_ddf	7
F2x_ddf_simple	332392
F2x_ddf_to_ddf2	7
F2x_degfact	0
F2x_degfact_2	18932
F2x_edf_simple	31662
F2x_factor	15039
F2x_factor_2	1048141
F2x_factor_Cantor	284215
F2x_factor_Shoup	332390
F2x_factor_deg2	1067087
F2x_factor_i	1384087
F2x_factor_squarefree	316987
F2x_is_irred	238
F2x_is_irred_2	14
F2x_quad_factortype	422573
F2x_split_Berlekamp	33454
F2xq_frobtrace	21653
FE_concat	1834078
Fl_disc_bc	29991407
Flx_Xn1	2083
Flx_Xnm1	2184
Flx_cubic_root	428076
Flx_ddf	0
Flx_ddf_Shoup	8482797
Flx_ddf_pre	0
Flx_degfact	7223695
Flx_degfact_2	2390475
Flx_edf	711344
Flx_edf_rec	1336400
Flx_edf_simple	387354
Flx_factor	659431
Flx_factor_2	1951563
Flx_factor_Cantor	1548969
Flx_factor_Shoup	1617564
Flx_factor_deg2	4342096
Flx_factor_i	10805176
Flx_factor_squarefree	346578
Flx_factor_squarefree_pre	6738999
Flx_is_irred	1057
Flx_is_irred_2	56
Flx_is_totally_split	70861
Flx_is_totally_split_i	70854
Flx_isirred_Cantor	1078
Flx_ispower	3441
Flx_nbfact	625311
Flx_nbfact_Frobenius	0
Flx_nbfact_Frobenius_pre	625321
Flx_nbfact_by_degree	1324154
Flx_nbfact_pre	625309
Flx_nbroots	4735188
Flx_oneroot	2520
Flx_oneroot_mod_2	98
Flx_oneroot_pre	4421465
Flx_oneroot_pre_i	4463128
Flx_oneroot_split	14
Flx_oneroot_split_pre	41604
Flx_otherroot	16351196
Flx_quad_factortype	2364444
Flx_quad_root	27625791
Flx_root_mod_2	87597
Flx_roots	1205
Flx_roots_pre	26824637
Flx_simplefact_Cantor	4840128
FpX_cubic_root	119
FpX_ddf	7
FpX_ddf_Shoup	1022
FpX_ddf_degree	4256
FpX_ddf_i	0
FpX_degfact	47844
FpX_degfact_2	14
FpX_edf	434
FpX_edf_rec	1051
FpX_edf_simple	0
FpX_factor	4171588
FpX_factor_2	1485
FpX_factor_Cantor	909
FpX_factor_Shoup	1008
FpX_factor_Yun	1713
FpX_factor_deg2	1506
FpX_factor_i	2429
FpX_factor_squarefree	347326
FpX_is_irred	112
FpX_is_irred_2	7
FpX_is_totally_split	0
FpX_isirred_Cantor	0
FpX_ispower	168
FpX_nbfact	0
FpX_nbfact_Frobenius	0
FpX_nbroots	153946
FpX_oneroot	234087
FpX_oneroot_i	5321
FpX_oneroot_split	1043
FpX_otherroot	10010
FpX_quad_factortype	21
FpX_quad_root	14676
FpX_roots	420321
FpX_roots_i	8247
FpX_roots_mult	226478
FpX_simplefact_Cantor	14
FpX_split_part	247854
ZX_factmod_init	4219551
ZX_rootmod_init	654408
all_roots_mod_p	600
cmpGuGu	15446644
ddf_to_ddf2	7
ddf_to_ddf2_i	14
ddf_to_nbfact	2244544
good_root_of_unity	105
prime_fact	70
split_Flx_cut_out_roots	4874459
split_add	5252324
split_add_done	515611
split_done	471609
split_init	4883446
split_moveto_done	5252864
split_nonsquares	30255
split_squares	30256
split_todo	420210
trivial_fact	341265
vddf_to_simplefact	4840615

Generated by: LCOV version 1.16