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 30556-bb9f5f8fc8) Lines: 1308 1426 91.7 % Date: 2025-11-25 09:20:50 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	430
all_roots_mod_p	600
FpX_factor_Cantor	905
FpX_factor_Shoup	1000
FpX_ddf_Shoup	1014
FpX_edf_rec	1034
Flx_is_irred	1057
Flx_isirred_Cantor	1078
FpX_oneroot_split	1176
Flx_roots	1365
FpX_factor_2	1485
FpX_factor_deg2	1506
FpX_factor_Yun	1709
Flx_Xn1	2132
Flx_Xnm1	2242
FpX_factor_i	2425
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	15048
F2x_degfact_2	18809
F2xq_frobtrace	22512
F2x_Berlekamp_ker	22998
split_squares	31653
split_nonsquares	31654
F2x_edf_simple	32854
F2x_Berlekamp_i	35043
F2x_split_Berlekamp	35482
Flx_oneroot_split_pre	40400
FpX_degfact	47919
Flx_is_totally_split_i	80962
Flx_is_totally_split	80969
Flx_root_mod_2	93675
FpX_nbroots	153946
FpX_roots_mult	226478
FpX_oneroot	234318
FpX_split_part	249290
F2x_Cantor_i	302601
F2x_factor_Cantor	302601
F2x_factor_squarefree	337629
Flx_factor_squarefree	346578
FpX_factor_squarefree	347326
trivial_fact	351027
F2x_factor_Shoup	353614
F2x_ddf_simple	353617
Flx_edf_simple	407274
split_todo	427883
FpX_roots	431782
Flx_cubic_root	434935
F2x_quad_factortype	469542
split_done	481947
split_add_done	525985
ZX_rootmod_init	666100
Flx_nbfact_pre	666858
Flx_nbfact	666859
Flx_nbfact_Frobenius_pre	666870
Flx_factor	707216
Flx_edf	739292
F2x_factor_2	1184622
F2x_factor_deg2	1203445
Flx_edf_rec	1386860
Flx_nbfact_by_degree	1430909
F2x_factor_i	1541086
Flx_factor_Cantor	1604636
Flx_factor_Shoup	1676978
FE_concat	1908141
Flx_factor_2	2030464
ddf_to_nbfact	2345395
Flx_quad_factortype	2408555
Flx_degfact_2	2434599
FpX_factor	4412873
Flx_oneroot_pre	4452437
ZX_factmod_init	4460912
Flx_factor_deg2	4465001
Flx_oneroot_pre_i	4492868
Flx_nbroots	4766890
split_Flx_cut_out_roots	5025723
split_init	5034793
Flx_simplefact_Cantor	5334699
vddf_to_simplefact	5336466
split_add	5411521
split_moveto_done	5411792
Flx_factor_squarefree_pre	7288646
Flx_degfact	7764961
Flx_ddf_Shoup	9188954
Flx_factor_i	11481701
Flx_otherroot	15632995
cmpGuGu	16365025
Flx_roots_pre	25846045
Flx_quad_root	26567395
Fl_disc_bc	28977110

Generated by: LCOV version 1.16