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 - base2.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30368-f792e9816c) Lines: 2228 2369 94.0 %
Date: 2025-07-04 09:22:57 Functions: 174 178 97.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Decomp 254834
Flx_checkdeflate 1601615
Flx_radical 1601587
FpX_radical 5692
Fp_basis 312150
FqM_to_nfM 2934
FqV_to_nfV 0
FqX_non_root 21
FqX_to_nfX 10184
Fq_to_nf 3087275
QXQV_to_FpM 203
QpXV_denom 509072
QpX_denom 2751149
QpX_remove_denom 1743693
RgV_nffix 49
RgX_nffix 328266
RgX_to_algX 1666
Rg_nffix 961870
ZX_Dedekind 1538945
ZX_rescale_inv 59993
Z_fac 183
Zlx_gcd 246310
Zlx_sylvester_echelon 4797817
ZpM_hnfmodid 454205
ZpX_disc_val 184654
ZpX_gcd 254833
ZpX_monic_factor 546
ZpX_monic_factor_squarefree 1155
ZpX_primedec 0
ZpX_reduced_resultant 993458
ZpX_reduced_resultant_fast 932238
ZpX_resultant_val 3577389
ZpX_resultant_val_i 3623535
ZpX_round4 896
ZpX_sylvester_echelon 74054
_msqr 4158
_sqr 16190
checkmodpr 210
checkprid 18054656
checkprid_i 23289379
compmod 287320
compositum 91
compositum2 2877
compositum_fix 26826
dbasis 621080
diag_denom 100527
diag_denomval 685873
ei_msqr_mod 352575
errprime 0
expo_is_squarefree 889
fact_from_factors 4242
ffdegree 4109
fill 4222
fix_PE 498
fnz 223465
gc_nf_to_Fq 14188744
gen_if_principal 35
get_LV 216906
get_coprimes 294
get_d 3213
get_g 356614
get_gamma 303515
get_maxord 813372
get_modpr 137753
get_module 63
get_norm 506048
get_nu 641438
get_partial_order_as_pols 509073
get_powers 161586
get_pr 416642
get_prid 939491
getprime 563759
hnf_Znproj 1084219
ideal_is1 8049
idealprimedec 1299798
idealprimedec_degrees 371
idealprimedec_galois 6552
idealprimedec_kummer 3930678
idealprimedec_limit_f 2818654
idealprimedec_limit_norm 505228
indexpartial 44095
init_m 4509556
init_norm 216868
is_uniformizer 506045
lift_to_zk 93673
loop 238762
manage_cache 706344
maxord 1538948
maxord_disc 711216
maxord_i 455101
minval 3776
mk_pr 4391274
modpr_TAU 4048410
modpr_genFq 4508
modprinit 1212730
mul_intersect 712271
mycaract 706405
newtoncharpoly 699552
newtonsums 706410
nfM_to_FqM 1872
nfV_to_FqV 167410
nfXQ_mul 16523
nfX_mul 20646
nfX_rem 16523
nfX_sub 4123
nfX_to_FqX 9373
nfX_to_monic 1680
nfXisintegral 7301
nf_pV_to_prV 38605
nf_pV_to_prVV 26614
nf_to_Fq 12922404
nf_to_Fq_i 14189263
nf_to_Fq_init 4047210
nfbasis 938
nfcompositum 13527
nfcompositum_lambda 511
nfdisc 66462
nfdiscfactors 644766
nfidealdet1 63
nfisintegral 31955
nfmaxord 102154
nfmaxord_check_args 813384
nfmodpr 350
nfmodprinit 7
nfmodprinit0 77
nfmodprlift 77
nfpolisintegral 8225
nfpolisintegral_i 8225
nfreducemodpr 210
ok_modpr 4913946
p_is_prime 2210
pol_min 118960
polcompositum0 12974
poldiscfactors 42
poldiscfactors_i 788727
pow_ei_mod_p 748508
pr_anti_uniformizer 1006014
pr_factorback 4263
pr_factorback_scal 4263
pradical 216903
primedec_aux 2825567
primedec_end 216906
progress 394620
redelt 48561
redelt_i 64390
rnfallbase 3164
rnfbasis 21
rnfdedekind 91
rnfdedekind_i 4151
rnfdet 14
rnfdisc_factored 868
rnfdiscf 77
rnfeltid_powmod 5834
rnfhnfbasis 7
rnfisfree 7
rnfjoinmodules 1329
rnfjoinmodules_i 2111
rnfmaxord 4067
rnfsimplifybasis 0
rnfsteinitz 28
safe_Z_pvalrem 15050
setPE 746852
set_disc 813329
split_char 480643
sqr_mod 830635
testb2 67233
testc2 48560
to_ff_init 4081323
triv_order 1506
uniformizer 300035
update_den 3571745
update_fact 2439
update_phi 276588
vstar 624488
zk_to_Fq 6521347
zk_to_Fq_init 34097
zkmodprinit 175376
zx_z_div 1533210

Generated by: LCOV version 1.16