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 30387-12623f1693) Lines: 1308 1426 91.7 % Date: 2025-07-10 09:22:50 Functions: 114 124 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
F2x_Berlekamp_i	35360
F2x_Berlekamp_ker	23303
F2x_Cantor_i	302958
F2x_ddf	7
F2x_ddf_simple	354060
F2x_ddf_to_ddf2	7
F2x_degfact	0
F2x_degfact_2	19684
F2x_edf_simple	33409
F2x_factor	15017
F2x_factor_2	1186899
F2x_factor_Cantor	302958
F2x_factor_Shoup	354051
F2x_factor_deg2	1206597
F2x_factor_i	1544914
F2x_factor_squarefree	338301
F2x_is_irred	238
F2x_is_irred_2	14
F2x_quad_factortype	471594
F2x_split_Berlekamp	35802
F2xq_frobtrace	22808
FE_concat	1912151
Fl_disc_bc	29028050
Flx_Xn1	2132
Flx_Xnm1	2237
Flx_cubic_root	433711
Flx_ddf	0
Flx_ddf_Shoup	9228054
Flx_ddf_pre	0
Flx_degfact	7853282
Flx_degfact_2	2515362
Flx_edf	742901
Flx_edf_rec	1394902
Flx_edf_simple	410945
Flx_factor	709489
Flx_factor_2	2034898
Flx_factor_Cantor	1608270
Flx_factor_Shoup	1681154
Flx_factor_deg2	4550196
Flx_factor_i	11578098
Flx_factor_squarefree	346557
Flx_factor_squarefree_pre	7299077
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	670780
Flx_nbfact_Frobenius	0
Flx_nbfact_Frobenius_pre	670777
Flx_nbfact_by_degree	1454735
Flx_nbfact_pre	670780
Flx_nbroots	4768228
Flx_oneroot	2499
Flx_oneroot_mod_2	98
Flx_oneroot_pre	4425390
Flx_oneroot_pre_i	4465941
Flx_oneroot_split	14
Flx_oneroot_split_pre	40511
Flx_otherroot	15647735
Flx_quad_factortype	2489351
Flx_quad_root	26538163
Flx_root_mod_2	94278
Flx_roots	1372
Flx_roots_pre	25961846
Flx_simplefact_Cantor	5341433
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	4421638
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	138259
FpX_oneroot	234297
FpX_oneroot_i	5547
FpX_oneroot_split	1176
FpX_otherroot	10010
FpX_quad_factortype	21
FpX_quad_root	14795
FpX_roots	433477
FpX_roots_i	8240
FpX_roots_mult	226464
FpX_simplefact_Cantor	14
FpX_split_part	234561
ZX_factmod_init	4469707
ZX_rootmod_init	667774
all_roots_mod_p	600
cmpGuGu	16445402
ddf_to_ddf2	7
ddf_to_ddf2_i	14
ddf_to_nbfact	2353597
good_root_of_unity	154
prime_fact	70
split_Flx_cut_out_roots	5145561
split_add	5532105
split_add_done	530782
split_done	486768
split_init	5154599
split_moveto_done	5532131
split_nonsquares	31764
split_squares	31764
split_todo	431095
trivial_fact	353900
vddf_to_simplefact	5342783

Generated by: LCOV version 1.16