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 30569-8181146aa1) Lines: 1308 1426 91.7 % Date: 2025-12-03 09:22:05 Functions: 114 124 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
F2x_Berlekamp_i	35378
F2x_Berlekamp_ker	23312
F2x_Cantor_i	303002
F2x_ddf	7
F2x_ddf_simple	354106
F2x_ddf_to_ddf2	7
F2x_degfact	0
F2x_degfact_2	19691
F2x_edf_simple	33482
F2x_factor	15037
F2x_factor_2	1186963
F2x_factor_Cantor	303002
F2x_factor_Shoup	354102
F2x_factor_deg2	1206669
F2x_factor_i	1545049
F2x_factor_squarefree	338364
F2x_is_irred	238
F2x_is_irred_2	14
F2x_quad_factortype	471689
F2x_split_Berlekamp	35815
F2xq_frobtrace	22837
FE_concat	1913639
Fl_disc_bc	29037350
Flx_Xn1	2132
Flx_Xnm1	2237
Flx_cubic_root	434731
Flx_ddf	0
Flx_ddf_Shoup	9235276
Flx_ddf_pre	0
Flx_degfact	7862300
Flx_degfact_2	2517080
Flx_edf	743534
Flx_edf_rec	1396441
Flx_edf_simple	410950
Flx_factor	709608
Flx_factor_2	2037599
Flx_factor_Cantor	1609712
Flx_factor_Shoup	1682628
Flx_factor_deg2	4554573
Flx_factor_i	11591055
Flx_factor_squarefree	346578
Flx_factor_squarefree_pre	7306886
Flx_is_irred	1057
Flx_is_irred_2	56
Flx_is_totally_split	81354
Flx_is_totally_split_i	81347
Flx_isirred_Cantor	1078
Flx_ispower	3444
Flx_nbfact	671040
Flx_nbfact_Frobenius	0
Flx_nbfact_Frobenius_pre	671045
Flx_nbfact_by_degree	1455375
Flx_nbfact_pre	671038
Flx_nbroots	4769366
Flx_oneroot	2499
Flx_oneroot_mod_2	98
Flx_oneroot_pre	4443188
Flx_oneroot_pre_i	4483627
Flx_oneroot_split	14
Flx_oneroot_split_pre	40408
Flx_otherroot	15637918
Flx_quad_factortype	2491009
Flx_quad_root	26549051
Flx_root_mod_2	94324
Flx_roots	1372
Flx_roots_pre	25828051
Flx_simplefact_Cantor	5348324
FpX_cubic_root	168
FpX_ddf	7
FpX_ddf_Shoup	1022
FpX_ddf_degree	4256
FpX_ddf_i	0
FpX_degfact	47947
FpX_degfact_2	14
FpX_edf	434
FpX_edf_rec	1051
FpX_edf_simple	0
FpX_factor	4425744
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	234317
FpX_oneroot_i	5554
FpX_oneroot_split	1176
FpX_otherroot	10010
FpX_quad_factortype	21
FpX_quad_root	14795
FpX_roots	433593
FpX_roots_i	8247
FpX_roots_mult	226478
FpX_simplefact_Cantor	14
FpX_split_part	250298
ZX_factmod_init	4473819
ZX_rootmod_init	667910
all_roots_mod_p	600
cmpGuGu	16460236
ddf_to_ddf2	7
ddf_to_ddf2_i	14
ddf_to_nbfact	2355335
good_root_of_unity	154
prime_fact	70
split_Flx_cut_out_roots	5025035
split_add	5412109
split_add_done	526513
split_done	482488
split_init	5034008
split_moveto_done	5412106
split_nonsquares	31771
split_squares	31772
split_todo	428617
trivial_fact	354161
vddf_to_simplefact	5350734

Generated by: LCOV version 1.16