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 30585-4c42182400) Lines: 1308 1426 91.7 % Date: 2025-12-23 09:21:19 Functions: 114 124 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
F2x_Berlekamp_i	35362
F2x_Berlekamp_ker	23295
F2x_Cantor_i	302778
F2x_ddf	7
F2x_ddf_simple	353851
F2x_ddf_to_ddf2	7
F2x_degfact	0
F2x_degfact_2	19676
F2x_edf_simple	33418
F2x_factor	15016
F2x_factor_2	1186646
F2x_factor_Cantor	302778
F2x_factor_Shoup	353848
F2x_factor_deg2	1206338
F2x_factor_i	1544480
F2x_factor_squarefree	338128
F2x_is_irred	238
F2x_is_irred_2	14
F2x_quad_factortype	471576
F2x_split_Berlekamp	35804
F2xq_frobtrace	22774
FE_concat	1910695
Fl_disc_bc	30211649
Flx_Xn1	2139
Flx_Xnm1	2244
Flx_cubic_root	427815
Flx_ddf	0
Flx_ddf_Shoup	9231232
Flx_ddf_pre	0
Flx_degfact	7859014
Flx_degfact_2	2515066
Flx_edf	741128
Flx_edf_rec	1391640
Flx_edf_simple	410218
Flx_factor	705567
Flx_factor_2	2035755
Flx_factor_Cantor	1606990
Flx_factor_Shoup	1679853
Flx_factor_deg2	4550746
Flx_factor_i	11583405
Flx_factor_squarefree	346578
Flx_factor_squarefree_pre	7303750
Flx_is_irred	1057
Flx_is_irred_2	56
Flx_is_totally_split	81352
Flx_is_totally_split_i	81345
Flx_isirred_Cantor	1078
Flx_ispower	3444
Flx_nbfact	668875
Flx_nbfact_Frobenius	0
Flx_nbfact_Frobenius_pre	668866
Flx_nbfact_by_degree	1454394
Flx_nbfact_pre	668875
Flx_nbroots	4767316
Flx_oneroot	2499
Flx_oneroot_mod_2	98
Flx_oneroot_pre	4422785
Flx_oneroot_pre_i	4464352
Flx_oneroot_split	14
Flx_oneroot_split_pre	41530
Flx_otherroot	16402759
Flx_quad_factortype	2488983
Flx_quad_root	27723510
Flx_root_mod_2	94298
Flx_roots	1372
Flx_roots_pre	26847583
Flx_simplefact_Cantor	5347329
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	4424715
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	5322
FpX_oneroot_split	1043
FpX_otherroot	10010
FpX_quad_factortype	21
FpX_quad_root	14676
FpX_roots	433499
FpX_roots_i	8247
FpX_roots_mult	226478
FpX_simplefact_Cantor	14
FpX_split_part	250270
ZX_factmod_init	4472787
ZX_rootmod_init	667586
all_roots_mod_p	600
cmpGuGu	16441183
ddf_to_ddf2	7
ddf_to_ddf2_i	14
ddf_to_nbfact	2350385
good_root_of_unity	105
prime_fact	70
split_Flx_cut_out_roots	4875917
split_add	5260265
split_add_done	520523
split_done	476493
split_init	4884956
split_moveto_done	5260818
split_nonsquares	31487
split_squares	31488
split_todo	426158
trivial_fact	354030
vddf_to_simplefact	5348846

Generated by: LCOV version 1.16