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 30365-beea1ff998) Lines: 2228 2369 94.0 %
Date: 2025-07-01 09:21:48 Functions: 174 178 97.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
FqV_to_nfV 0
ZpX_primedec 0
errprime 0
rnfsimplifybasis 0
nfmodprinit 7
rnfhnfbasis 7
rnfisfree 7
rnfdet 14
FqX_non_root 21
rnfbasis 21
rnfsteinitz 28
gen_if_principal 35
poldiscfactors 42
RgV_nffix 49
get_module 63
nfidealdet1 63
nfmodprinit0 77
nfmodprlift 77
rnfdiscf 77
compositum 91
rnfdedekind 91
Z_fac 183
QXQV_to_FpM 203
checkmodpr 210
nfreducemodpr 210
get_coprimes 294
nfmodpr 350
idealprimedec_degrees 371
fix_PE 498
nfcompositum_lambda 511
ZpX_monic_factor 546
rnfdisc_factored 868
expo_is_squarefree 889
ZpX_round4 896
nfbasis 938
ZpX_monic_factor_squarefree 1155
rnfjoinmodules 1329
triv_order 1506
RgX_to_algX 1666
nfX_to_monic 1680
nfM_to_FqM 1872
rnfjoinmodules_i 2111
p_is_prime 2211
update_fact 2438
compositum2 2877
FqM_to_nfM 2934
rnfallbase 3164
get_d 3213
minval 3776
rnfmaxord 4067
ffdegree 4109
nfX_sub 4123
rnfdedekind_i 4151
_msqr 4158
fill 4222
fact_from_factors 4242
pr_factorback 4263
pr_factorback_scal 4263
modpr_genFq 4508
FpX_radical 5692
rnfeltid_powmod 5834
idealprimedec_galois 6552
nfXisintegral 7301
ideal_is1 8049
nfpolisintegral 8225
nfpolisintegral_i 8225
nfX_to_FqX 9373
FqX_to_nfX 10184
polcompositum0 12977
nfcompositum 13529
safe_Z_pvalrem 15050
_sqr 16190
nfXQ_mul 16523
nfX_rem 16523
nfX_mul 20646
nf_pV_to_prVV 26614
compositum_fix 26831
nfisintegral 31955
zk_to_Fq_init 34097
nf_pV_to_prV 38605
indexpartial 44095
redelt 48560
testc2 48560
ZX_rescale_inv 59989
redelt_i 64394
nfdisc 66465
testb2 67239
ZpX_sylvester_echelon 74054
lift_to_zk 93672
diag_denom 100528
nfmaxord 102162
pol_min 118959
get_modpr 137753
get_powers 161585
nfV_to_FqV 167410
zkmodprinit 175376
ZpX_disc_val 184667
init_norm 216877
pradical 216903
primedec_end 216905
get_LV 216906
fnz 223445
loop 238770
Zlx_gcd 246312
Decomp 254833
ZpX_gcd 254837
update_phi 276586
compmod 287328
uniformizer 300033
get_gamma 303545
Fp_basis 312151
RgX_nffix 328269
ei_msqr_mod 352584
get_g 356637
progress 394628
get_pr 416636
ZpM_hnfmodid 454215
maxord_i 455101
split_char 480678
idealprimedec_limit_norm 505223
is_uniformizer 506059
get_norm 506060
QpXV_denom 509074
get_partial_order_as_pols 509075
getprime 563792
dbasis 621101
vstar 624515
get_nu 641463
nfdiscfactors 644762
diag_denomval 685897
newtoncharpoly 699587
manage_cache 706402
mycaract 706449
newtonsums 706460
maxord_disc 711216
mul_intersect 712273
setPE 746868
pow_ei_mod_p 748515
poldiscfactors_i 788759
set_disc 813361
get_maxord 813382
nfmaxord_check_args 813387
sqr_mod 830651
ZpX_reduced_resultant_fast 932252
get_prid 939491
Rg_nffix 961879
ZpX_reduced_resultant 993479
pr_anti_uniformizer 1006015
hnf_Znproj 1084208
modprinit 1212736
idealprimedec 1299805
zx_z_div 1533244
ZX_Dedekind 1538953
maxord 1538956
Flx_radical 1601612
Flx_checkdeflate 1601628
QpX_remove_denom 1743775
QpX_denom 2751245
idealprimedec_limit_f 2818660
primedec_aux 2825561
Fq_to_nf 3087274
update_den 3571911
ZpX_resultant_val 3577438
ZpX_resultant_val_i 3623571
idealprimedec_kummer 3930686
nf_to_Fq_init 4047188
modpr_TAU 4048394
to_ff_init 4081295
mk_pr 4391264
init_m 4509624
Zlx_sylvester_echelon 4797879
ok_modpr 4913936
zk_to_Fq 6521389
nf_to_Fq 12922428
gc_nf_to_Fq 14188758
nf_to_Fq_i 14189277
checkprid 18054743
checkprid_i 23289378

Generated by: LCOV version 1.16