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 30657-d14c2a9e4e) Lines: 1308 1426 91.7 % Date: 2026-01-29 09:23:20 Functions: 114 124 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
F2x_Berlekamp_i	35372
F2x_Berlekamp_ker	23310
F2x_Cantor_i	302816
F2x_ddf	7
F2x_ddf_simple	353902
F2x_ddf_to_ddf2	7
F2x_degfact	0
F2x_degfact_2	19677
F2x_edf_simple	33421
F2x_factor	15030
F2x_factor_2	1186648
F2x_factor_Cantor	302816
F2x_factor_Shoup	353898
F2x_factor_deg2	1206339
F2x_factor_i	1544525
F2x_factor_squarefree	338173
F2x_is_irred	238
F2x_is_irred_2	14
F2x_quad_factortype	471559
F2x_split_Berlekamp	35806
F2xq_frobtrace	22822
FE_concat	1910847
Fl_disc_bc	30216873
Flx_Xn1	2139
Flx_Xnm1	2244
Flx_cubic_root	427981
Flx_ddf	0
Flx_ddf_Shoup	9233243
Flx_ddf_pre	0
Flx_degfact	7860313
Flx_degfact_2	2515376
Flx_edf	741270
Flx_edf_rec	1391634
Flx_edf_simple	410235
Flx_factor	705686
Flx_factor_2	2035681
Flx_factor_Cantor	1607108
Flx_factor_Shoup	1679974
Flx_factor_deg2	4551007
Flx_factor_i	11584835
Flx_factor_squarefree	346578
Flx_factor_squarefree_pre	7305005
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	669215
Flx_nbfact_Frobenius	0
Flx_nbfact_Frobenius_pre	669225
Flx_nbfact_by_degree	1454235
Flx_nbfact_pre	669215
Flx_nbroots	4767485
Flx_oneroot	2520
Flx_oneroot_mod_2	98
Flx_oneroot_pre	4421280
Flx_oneroot_pre_i	4463265
Flx_oneroot_split	14
Flx_oneroot_split_pre	41616
Flx_otherroot	16427799
Flx_quad_factortype	2489312
Flx_quad_root	27736134
Flx_root_mod_2	94299
Flx_roots	1372
Flx_roots_pre	26882847
Flx_simplefact_Cantor	5348369
FpX_cubic_root	119
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	4424483
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	5323
FpX_oneroot_split	1043
FpX_otherroot	10010
FpX_quad_factortype	21
FpX_quad_root	14676
FpX_roots	433522
FpX_roots_i	8247
FpX_roots_mult	226478
FpX_simplefact_Cantor	14
FpX_split_part	250270
ZX_factmod_init	4472739
ZX_rootmod_init	667609
all_roots_mod_p	600
cmpGuGu	16442144
ddf_to_ddf2	7
ddf_to_ddf2_i	14
ddf_to_nbfact	2350862
good_root_of_unity	105
prime_fact	70
split_Flx_cut_out_roots	4875896
split_add	5261806
split_add_done	521003
split_done	476977
split_init	4884833
split_moveto_done	5262593
split_nonsquares	31508
split_squares	31508
split_todo	426620
trivial_fact	354051
vddf_to_simplefact	5349429

Generated by: LCOV version 1.16