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 30497-174c393803) Lines: 2228 2369 94.0 %
Date: 2025-09-15 09:23:33 Functions: 174 178 97.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Decomp 254830
Flx_checkdeflate 1601637
Flx_radical 1601613
FpX_radical 5692
Fp_basis 312147
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 509064
QpX_denom 2751268
QpX_remove_denom 1743808
RgV_nffix 49
RgX_nffix 328268
RgX_to_algX 1666
Rg_nffix 961873
ZX_Dedekind 1538982
ZX_rescale_inv 59977
Z_fac 197
Zlx_gcd 246306
Zlx_sylvester_echelon 4801546
ZpM_hnfmodid 454214
ZpX_disc_val 184650
ZpX_gcd 254830
ZpX_monic_factor 546
ZpX_monic_factor_squarefree 1155
ZpX_primedec 0
ZpX_reduced_resultant 993524
ZpX_reduced_resultant_fast 932295
ZpX_resultant_val 3581043
ZpX_resultant_val_i 3627206
ZpX_round4 896
ZpX_sylvester_echelon 74054
_msqr 4158
_sqr 16190
checkmodpr 210
checkprid 18074405
checkprid_i 23311590
compmod 287339
compositum 91
compositum2 2877
compositum_fix 26827
dbasis 621084
diag_denom 100532
diag_denomval 685889
ei_msqr_mod 352576
errprime 0
expo_is_squarefree 889
fact_from_factors 4242
ffdegree 4109
fill 4222
fix_PE 512
fnz 223476
gc_nf_to_Fq 14188782
gen_if_principal 35
get_LV 216905
get_coprimes 294
get_d 3213
get_g 356624
get_gamma 303536
get_maxord 813397
get_modpr 137753
get_module 63
get_norm 506062
get_nu 641478
get_partial_order_as_pols 509063
get_powers 161582
get_pr 416629
get_prid 939659
getprime 563788
hnf_Znproj 1084195
ideal_is1 8049
idealprimedec 1299792
idealprimedec_degrees 371
idealprimedec_galois 6552
idealprimedec_kummer 3934401
idealprimedec_limit_f 2821872
idealprimedec_limit_norm 507439
indexpartial 44095
init_m 4513267
init_norm 216859
is_uniformizer 506057
lift_to_zk 93673
loop 238773
manage_cache 706431
maxord 1538982
maxord_disc 711212
maxord_i 455103
minval 3776
mk_pr 4395016
modpr_TAU 4050660
modpr_genFq 4508
modprinit 1212725
mul_intersect 712262
mycaract 706477
newtoncharpoly 699627
newtonsums 706480
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 12922434
nf_to_Fq_i 14189289
nf_to_Fq_init 4049401
nfbasis 938
nfcompositum 13524
nfcompositum_lambda 511
nfdisc 66462
nfdiscfactors 644767
nfidealdet1 63
nfisintegral 31955
nfmaxord 102176
nfmaxord_check_args 813398
nfmodpr 350
nfmodprinit 7
nfmodprinit0 77
nfmodprlift 77
nfpolisintegral 8225
nfpolisintegral_i 8225
nfreducemodpr 210
ok_modpr 4916324
p_is_prime 2212
pol_min 118957
polcompositum0 12971
poldiscfactors 42
poldiscfactors_i 788781
pow_ei_mod_p 748511
pr_anti_uniformizer 1006006
pr_factorback 4263
pr_factorback_scal 4263
pradical 216900
primedec_aux 2828775
primedec_end 216903
progress 394623
redelt 48566
redelt_i 64394
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 746891
set_disc 813321
split_char 480667
sqr_mod 830641
testb2 67242
testc2 48566
to_ff_init 4083522
triv_order 1506
uniformizer 300029
update_den 3571957
update_fact 2439
update_phi 276624
vstar 624498
zk_to_Fq 6521395
zk_to_Fq_init 34097
zkmodprinit 175376
zx_z_div 1533244

Generated by: LCOV version 1.16