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 30482-15ec328664) Lines: 1308 1426 91.7 %
Date: 2025-09-07 09:24:11 Functions: 114 124 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
F2x_Berlekamp_i 35379
F2x_Berlekamp_ker 23314
F2x_Cantor_i 302989
F2x_ddf 7
F2x_ddf_simple 354093
F2x_ddf_to_ddf2 7
F2x_degfact 0
F2x_degfact_2 19684
F2x_edf_simple 33402
F2x_factor 15039
F2x_factor_2 1186865
F2x_factor_Cantor 302989
F2x_factor_Shoup 354090
F2x_factor_deg2 1206563
F2x_factor_i 1544927
F2x_factor_squarefree 338353
F2x_is_irred 238
F2x_is_irred_2 14
F2x_quad_factortype 471594
F2x_split_Berlekamp 35817
F2xq_frobtrace 22805
FE_concat 1913146
Fl_disc_bc 29039715
Flx_Xn1 2132
Flx_Xnm1 2237
Flx_cubic_root 434712
Flx_ddf 0
Flx_ddf_Shoup 9234213
Flx_ddf_pre 0
Flx_degfact 7858824
Flx_degfact_2 2515746
Flx_edf 743110
Flx_edf_rec 1395392
Flx_edf_simple 410938
Flx_factor 709535
Flx_factor_2 2034991
Flx_factor_Cantor 1609260
Flx_factor_Shoup 1682147
Flx_factor_deg2 4550679
Flx_factor_i 11584768
Flx_factor_squarefree 346557
Flx_factor_squarefree_pre 7304711
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 670805
Flx_nbfact_Frobenius 0
Flx_nbfact_Frobenius_pre 670813
Flx_nbfact_by_degree 1454751
Flx_nbfact_pre 670805
Flx_nbroots 4768805
Flx_oneroot 2499
Flx_oneroot_mod_2 98
Flx_oneroot_pre 4431630
Flx_oneroot_pre_i 4472083
Flx_oneroot_split 14
Flx_oneroot_split_pre 40407
Flx_otherroot 15634334
Flx_quad_factortype 2489713
Flx_quad_root 26555070
Flx_root_mod_2 94294
Flx_roots 1372
Flx_roots_pre 25853586
Flx_simplefact_Cantor 5346505
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 4422656
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 234296
FpX_oneroot_i 5547
FpX_oneroot_split 1176
FpX_otherroot 10010
FpX_quad_factortype 21
FpX_quad_root 14795
FpX_roots 433529
FpX_roots_i 8240
FpX_roots_mult 226464
FpX_simplefact_Cantor 14
FpX_split_part 250290
ZX_factmod_init 4470727
ZX_rootmod_init 667825
all_roots_mod_p 600
cmpGuGu 16452786
ddf_to_ddf2 7
ddf_to_ddf2_i 14
ddf_to_nbfact 2354590
good_root_of_unity 154
prime_fact 70
split_Flx_cut_out_roots 5025612
split_add 5412239
split_add_done 526515
split_done 482499
split_init 5034550
split_moveto_done 5412931
split_nonsquares 31761
split_squares 31761
split_todo 428622
trivial_fact 353902
vddf_to_simplefact 5348024

Generated by: LCOV version 1.16