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 30446-bebd557ed6) Lines: 1308 1426 91.7 % Date: 2025-08-06 09:23:53 Functions: 114 124 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
F2x_Berlekamp_i	35367
F2x_Berlekamp_ker	23301
F2x_Cantor_i	302952
F2x_ddf	7
F2x_ddf_simple	354048
F2x_ddf_to_ddf2	7
F2x_degfact	0
F2x_degfact_2	19684
F2x_edf_simple	33406
F2x_factor	15016
F2x_factor_2	1186892
F2x_factor_Cantor	302953
F2x_factor_Shoup	354048
F2x_factor_deg2	1206591
F2x_factor_i	1544914
F2x_factor_squarefree	338301
F2x_is_irred	238
F2x_is_irred_2	14
F2x_quad_factortype	471622
F2x_split_Berlekamp	35809
F2xq_frobtrace	22816
FE_concat	1913126
Fl_disc_bc	29034574
Flx_Xn1	2132
Flx_Xnm1	2237
Flx_cubic_root	434738
Flx_ddf	0
Flx_ddf_Shoup	9233962
Flx_ddf_pre	0
Flx_degfact	7858926
Flx_degfact_2	2515759
Flx_edf	743159
Flx_edf_rec	1395392
Flx_edf_simple	410939
Flx_factor	709503
Flx_factor_2	2034938
Flx_factor_Cantor	1609255
Flx_factor_Shoup	1682130
Flx_factor_deg2	4550653
Flx_factor_i	11584825
Flx_factor_squarefree	346557
Flx_factor_squarefree_pre	7305032
Flx_is_irred	1057
Flx_is_irred_2	56
Flx_is_totally_split	81353
Flx_is_totally_split_i	81346
Flx_isirred_Cantor	1078
Flx_ispower	3444
Flx_nbfact	670804
Flx_nbfact_Frobenius	0
Flx_nbfact_Frobenius_pre	670797
Flx_nbfact_by_degree	1454782
Flx_nbfact_pre	670804
Flx_nbroots	4768791
Flx_oneroot	2499
Flx_oneroot_mod_2	98
Flx_oneroot_pre	4451213
Flx_oneroot_pre_i	4491567
Flx_oneroot_split	14
Flx_oneroot_split_pre	40403
Flx_otherroot	15637530
Flx_quad_factortype	2489733
Flx_quad_root	26550452
Flx_root_mod_2	94294
Flx_roots	1372
Flx_roots_pre	25839012
Flx_simplefact_Cantor	5346135
FpX_cubic_root	168
FpX_ddf	7
FpX_ddf_Shoup	1018
FpX_ddf_degree	4256
FpX_ddf_i	0
FpX_degfact	47947
FpX_degfact_2	14
FpX_edf	431
FpX_edf_rec	1036
FpX_edf_simple	0
FpX_factor	4422627
FpX_factor_2	1485
FpX_factor_Cantor	905
FpX_factor_Shoup	1004
FpX_factor_Yun	1695
FpX_factor_deg2	1506
FpX_factor_i	2425
FpX_factor_squarefree	347291
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	234297
FpX_oneroot_i	5547
FpX_oneroot_split	1176
FpX_otherroot	10010
FpX_quad_factortype	21
FpX_quad_root	14795
FpX_roots	433517
FpX_roots_i	8240
FpX_roots_mult	226464
FpX_simplefact_Cantor	14
FpX_split_part	250291
ZX_factmod_init	4470697
ZX_rootmod_init	667814
all_roots_mod_p	600
cmpGuGu	16453158
ddf_to_ddf2	7
ddf_to_ddf2_i	14
ddf_to_nbfact	2354578
good_root_of_unity	154
prime_fact	70
split_Flx_cut_out_roots	5024818
split_add	5412062
split_add_done	526530
split_done	482518
split_init	5033772
split_moveto_done	5413128
split_nonsquares	31763
split_squares	31762
split_todo	428570
trivial_fact	353905
vddf_to_simplefact	5347960

Generated by: LCOV version 1.16