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 - base4.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 29950-285c5b69ed) Lines: 1697 1846 91.9 % Date: 2025-02-05 09:09:51 Functions: 170 185 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Fl_invgen	5711637
Q_nffactor	28170
Q_to_famat	197149
RM_round_maxrank	97417
ZM_famat_limit	568191
ZV_cba	28
ZV_cba_extend	49
Z_cba	413000
Z_cba_rec	3766434
Z_dcba_rec	0
Z_ppgle	0
Z_ppio	532903
Z_ppo	18157507
Z_to_famat	376357
_idealaddtoone	730709
_idealmulred	28572
_idealsqrred	35654
_mul	11365
_sqr	35654
addmul_mat	65203
append	151941
chk_vdir	21
err_divexact	7
ext_inv	20410
ext_mul	60755
ext_pow	0
ext_sqr	33869
factorbackprime	61535
famatV_factorback	13765
famatV_zv_factorback	46753
famat_Z_gcd	0
famat_add	158605
famat_div	200157
famat_div_shallow	10304
famat_idealfactor	0
famat_inv	199364
famat_inv_shallow	26969
famat_makecoprime	2003839
famat_mul	447430
famat_mul_shallow	200592
famat_mulpow_shallow	88309
famat_mulpows_shallow	118548
famat_pow	60642
famat_pow_shallow	62036
famat_pows_shallow	123144
famat_reduce	295921
famat_remove_trivial	53791
famat_sqr	22921
famat_sub	20942
famat_to_Fp_coprime	693
famat_to_nf	0
famat_to_nf_moddivisor	20118
famatsmall_reduce	176594
get_random_a	117237
gpidealfactor	182
gpidealval	7119
hnf_QC_QC	7
hnf_Q_Q	21
hnf_Q_QC	77
hnf_Z_QC	70
hnf_Z_ZC	77
idealHNF_Z_factor	0
idealHNF_Z_factor_i	285355
idealHNF_factor	239605
idealHNF_factor_i	285355
idealHNF_inv	68395
idealHNF_inv_Z	210503
idealHNF_mul	469945
idealHNF_mul_two	922924
idealHNF_norm_pval	4043401
idealHNF_val	4178927
idealadd	81609
idealaddmultoone	35
idealaddtoone	98
idealaddtoone0	70
idealaddtoone_i	17605
idealaddtoone_raw	713100
idealappr	14
idealappr0	14
idealapprfact	0
idealapprfact_i	54037
idealcoprime	84
idealcoprimefact	37210
idealdiv	39316
idealdiv0	56
idealdivexact	5034
idealdivpowprime	11971
idealdown	3038
idealfactor	267425
idealfactor_limit	267895
idealfactor_partial	25508
idealhnf	595
idealhnf0	413
idealhnf_principal	1309396
idealhnf_shallow	1720447
idealhnf_two	738579
idealintersect	21
idealinv	114137
idealismaximal	77
idealismaximal_i	77
idealismaximal_int	42
idealismaximal_mat	21
idealispower	3926
idealmin	7
idealmul	506117
idealmul0	70
idealmul_aux	506117
idealmulelt	264958
idealmulpowprime	767421
idealmulred	17207
idealnorm	104631
idealnumden	379234
idealpow	888559
idealpow0	2499
idealpow_aux	888563
idealpowprime	1196363
idealpowred	80266
idealpows	274612
idealprod	826
idealprodprime	525
idealprodval	1819
idealpseudomin	142950
idealpseudomin_nonscalar	0
idealpseudominvec	1204363
idealpseudored	1285445
idealred0	138662
idealred_elt	13809
idealredmodpower	49166
idealredmodpower_i	98322
idealsqr	38902
idealsqr_aux	38902
idealsqrprime	285643
idealsqrtn_int	7796
idealtwoelt	96826
idealtwoelt0	2485
idealtwoelt2	42
idealtyp	15839215
idealval	9397642
in_ideal	28
isideal	91
lcmuu	1588037
make_integral	10920
mat_ideal_two_elt	249767
mat_ideal_two_elt2	21
matreduce	63
nfV_eltembed	84
nfV_idealhnf	84
nf_coprime_part	126
nf_get_Gtwist	138669
nf_get_Gtwist1	12597
nf_remove_denom_p	4140474
nf_to_Fp_coprime	120162
nfdivmodpr	0
nfkermodpr	0
nfmulmodpr	7
nfpowmodpr	0
nfsolvemodpr	0
nfweilheight	84
nfweilheight_i	84
not_in_ideal	14
ok_elt	223330
p_makecoprime	94859
prV_e_muls	28174
prV_lcm_capZ	81995
prV_primes	61075
pr_hnf	3579238
pr_inv	17822
pr_inv_p	38398
pr_uniformizer	58170
ramified_root	7789
ramified_root_simple	7
sunits_makecoprime	98
to_Fp_coprime	123340
to_famat	0
to_famat_shallow	2688556
trivial_merge	28
twistG	12639
u_ppo	54219381
vec_mulid	91
vecdiv	903
vecinv	826
vecmul	16005547
vecpow	0
vecsqr	185983
zk_pvalrem	4094642

Generated by: LCOV version 1.16