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 30425-4669acb345) Lines: 2228 2369 94.0 %
Date: 2025-07-31 09:23:41 Functions: 174 178 97.8 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Decomp 254836
Flx_checkdeflate 1601649
Flx_radical 1601617
FpX_radical 5692
Fp_basis 312155
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 509069
QpX_denom 2751338
QpX_remove_denom 1743875
RgV_nffix 49
RgX_nffix 328271
RgX_to_algX 1666
Rg_nffix 961882
ZX_Dedekind 1538979
ZX_rescale_inv 59976
Z_fac 183
Zlx_gcd 246311
Zlx_sylvester_echelon 4797937
ZpM_hnfmodid 454211
ZpX_disc_val 184661
ZpX_gcd 254837
ZpX_monic_factor 546
ZpX_monic_factor_squarefree 1155
ZpX_primedec 0
ZpX_reduced_resultant 993513
ZpX_reduced_resultant_fast 932279
ZpX_resultant_val 3577382
ZpX_resultant_val_i 3623566
ZpX_round4 896
ZpX_sylvester_echelon 74052
_msqr 4158
_sqr 16190
checkmodpr 210
checkprid 18054401
checkprid_i 23289269
compmod 287349
compositum 91
compositum2 2877
compositum_fix 26831
dbasis 621088
diag_denom 100535
diag_denomval 685882
ei_msqr_mod 352599
errprime 0
expo_is_squarefree 889
fact_from_factors 4242
ffdegree 4109
fill 4222
fix_PE 498
fnz 223477
gc_nf_to_Fq 14188770
gen_if_principal 35
get_LV 216901
get_coprimes 294
get_d 3213
get_g 356636
get_gamma 303553
get_maxord 813390
get_modpr 137753
get_module 63
get_norm 506053
get_nu 641498
get_partial_order_as_pols 509072
get_powers 161579
get_pr 416635
get_prid 939659
getprime 563799
hnf_Znproj 1084202
ideal_is1 8049
idealprimedec 1299816
idealprimedec_degrees 371
idealprimedec_galois 6552
idealprimedec_kummer 3930654
idealprimedec_limit_f 2818677
idealprimedec_limit_norm 505227
indexpartial 44096
init_m 4509640
init_norm 216870
is_uniformizer 506048
lift_to_zk 93673
loop 238779
manage_cache 706445
maxord 1538981
maxord_disc 711228
maxord_i 455107
minval 3776
mk_pr 4391296
modpr_TAU 4048446
modpr_genFq 4508
modprinit 1212739
mul_intersect 712289
mycaract 706505
newtoncharpoly 699636
newtonsums 706508
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 38604
nf_pV_to_prVV 26614
nf_to_Fq 12922419
nf_to_Fq_i 14189280
nf_to_Fq_init 4047187
nfbasis 938
nfcompositum 13527
nfcompositum_lambda 511
nfdisc 66465
nfdiscfactors 644759
nfidealdet1 63
nfisintegral 31955
nfmaxord 102161
nfmaxord_check_args 813392
nfmodpr 350
nfmodprinit 7
nfmodprinit0 77
nfmodprlift 77
nfpolisintegral 8225
nfpolisintegral_i 8225
nfreducemodpr 210
ok_modpr 4914112
p_is_prime 2211
pol_min 118954
polcompositum0 12974
poldiscfactors 42
poldiscfactors_i 788758
pow_ei_mod_p 748510
pr_anti_uniformizer 1006008
pr_factorback 4263
pr_factorback_scal 4263
pradical 216899
primedec_aux 2825580
primedec_end 216900
progress 394630
redelt 48569
redelt_i 64400
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 746867
set_disc 813326
split_char 480704
sqr_mod 830667
testb2 67242
testc2 48569
to_ff_init 4081310
triv_order 1506
uniformizer 300026
update_den 3572058
update_fact 2438
update_phi 276609
vstar 624515
zk_to_Fq 6521408
zk_to_Fq_init 34097
zkmodprinit 175376
zx_z_div 1533204

Generated by: LCOV version 1.16