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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 30548-ec77dc363d) Lines: 2228 2369 94.0 % Date: 2025-11-15 09:22:38 Functions: 174 178 97.8 % Legend: Lines: hit not hit

Function Name	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	197
QXQV_to_FpM	203
checkmodpr	210
nfreducemodpr	210
get_coprimes	294
nfmodpr	350
idealprimedec_degrees	371
nfcompositum_lambda	511
fix_PE	512
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	2439
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	12974
nfcompositum	13527
safe_Z_pvalrem	15050
_sqr	16190
nfXQ_mul	16523
nfX_rem	16523
nfX_mul	20646
nf_pV_to_prVV	26614
compositum_fix	26830
nfisintegral	31955
zk_to_Fq_init	34097
nf_pV_to_prV	38605
indexpartial	44094
redelt	48563
testc2	48563
ZX_rescale_inv	59981
redelt_i	64394
nfdisc	66464
testb2	67235
ZpX_sylvester_echelon	74042
lift_to_zk	93673
diag_denom	100535
nfmaxord	102176
pol_min	118954
get_modpr	137753
get_powers	161579
nfV_to_FqV	167410
zkmodprinit	175376
ZpX_disc_val	184655
init_norm	216868
get_LV	216904
pradical	216904
primedec_end	216904
fnz	223516
loop	238759
Zlx_gcd	246307
Decomp	254827
ZpX_gcd	254830
update_phi	276612
compmod	287324
uniformizer	300027
get_gamma	303516
Fp_basis	312155
RgX_nffix	328269
ei_msqr_mod	352602
get_g	356604
progress	394617
get_pr	416642
ZpM_hnfmodid	454200
maxord_i	455097
split_char	480652
is_uniformizer	506041
get_norm	506050
idealprimedec_limit_norm	507441
QpXV_denom	509055
get_partial_order_as_pols	509057
getprime	563775
dbasis	621110
vstar	624487
get_nu	641463
nfdiscfactors	644781
diag_denomval	685907
newtoncharpoly	699594
manage_cache	706403
mycaract	706452
newtonsums	706454
maxord_disc	711231
mul_intersect	712289
setPE	746893
pow_ei_mod_p	748522
poldiscfactors_i	788763
set_disc	813390
get_maxord	813415
nfmaxord_check_args	813417
sqr_mod	830675
ZpX_reduced_resultant_fast	932273
get_prid	939659
Rg_nffix	961876
ZpX_reduced_resultant	993455
pr_anti_uniformizer	1005994
hnf_Znproj	1084198
modprinit	1212714
idealprimedec	1299790
zx_z_div	1533255
ZX_Dedekind	1538977
maxord	1538978
Flx_radical	1601643
Flx_checkdeflate	1601664
QpX_remove_denom	1743767
QpX_denom	2751189
idealprimedec_limit_f	2821869
primedec_aux	2828782
Fq_to_nf	3087273
update_den	3571940
ZpX_resultant_val	3581040
ZpX_resultant_val_i	3627207
idealprimedec_kummer	3934367
nf_to_Fq_init	4049363
modpr_TAU	4050662
to_ff_init	4083474
mk_pr	4395012
init_m	4513252
Zlx_sylvester_echelon	4801486
ok_modpr	4916279
zk_to_Fq	6521379
nf_to_Fq	12922390
gc_nf_to_Fq	14188742
nf_to_Fq_i	14189256
checkprid	18074235
checkprid_i	23311357

Generated by: LCOV version 1.16