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:

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: 2025-07-11 09:22:46 Functions: 114 124 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by 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 431
all_roots_mod_p 600
FpX_factor_Cantor 905
FpX_factor_Shoup 1004
FpX_ddf_Shoup 1018
FpX_edf_rec 1036
Flx_is_irred 1057
Flx_isirred_Cantor 1078
FpX_oneroot_split 1176
Flx_roots 1372
FpX_factor_2 1485
FpX_factor_deg2 1506
FpX_factor_Yun 1695
Flx_Xn1 2132
Flx_Xnm1 2237
FpX_factor_i 2425
Flx_oneroot 2499
Flx_ispower 3444
FpX_ddf_degree 4256
FpX_oneroot_i 5546
FpX_roots_i 8240
FpX_otherroot 10010
FpX_quad_root 14795
F2x_factor 15055
F2x_degfact_2 19684
F2xq_frobtrace 22813
F2x_Berlekamp_ker 23327
split_nonsquares 31760
split_squares 31761
F2x_edf_simple 33402
F2x_Berlekamp_i 35383
F2x_split_Berlekamp 35829
Flx_oneroot_split_pre 40517
FpX_degfact 47947
Flx_is_totally_split_i 81342
Flx_is_totally_split 81351
Flx_root_mod_2 94278
FpX_nbroots 138259
FpX_roots_mult 226464
FpX_oneroot 234297
FpX_split_part 234562
F2x_Cantor_i 302968
F2x_factor_Cantor 302968
F2x_factor_squarefree 338334
Flx_factor_squarefree 346557
FpX_factor_squarefree 347291
trivial_fact 353900
F2x_factor_Shoup 354068
F2x_ddf_simple 354074
Flx_edf_simple 410929
split_todo 431114
FpX_roots 433477
Flx_cubic_root 433599
F2x_quad_factortype 471591
split_done 486793
split_add_done 530809
ZX_rootmod_init 667774
Flx_nbfact 670783
Flx_nbfact_pre 670783
Flx_nbfact_Frobenius_pre 670786
Flx_factor 709494
Flx_edf 742886
F2x_factor_2 1186886
F2x_factor_deg2 1206584
Flx_edf_rec 1394894
Flx_nbfact_by_degree 1454689
F2x_factor_i 1544938
Flx_factor_Cantor 1608263
Flx_factor_Shoup 1681126
FE_concat 1912125
Flx_factor_2 2034943
ddf_to_nbfact 2353548
Flx_quad_factortype 2489297
Flx_degfact_2 2515317
FpX_factor 4421610
Flx_oneroot_pre 4427930
Flx_oneroot_pre_i 4468488
ZX_factmod_init 4469670
Flx_factor_deg2 4550181
Flx_nbroots 4768318
split_Flx_cut_out_roots 5145521
split_init 5154718
Flx_simplefact_Cantor 5341385
vddf_to_simplefact 5342555
split_moveto_done 5532030
split_add 5532233
Flx_factor_squarefree_pre 7299062
Flx_degfact 7853214
Flx_ddf_Shoup 9227628
Flx_factor_i 11578125
Flx_otherroot 15649803
cmpGuGu 16445360
Flx_roots_pre 25976636
Flx_quad_root 26555698
Fl_disc_bc 29045241

Generated by: LCOV version 1.16