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 30145-32f0acf4da) Lines: 1697 1846 91.9 % Date: 2025-04-18 09:18:41 Functions: 170 185 91.9 % Legend: Lines: hit not hit

Function Name	Hit count
Z_dcba_rec	0
Z_ppgle	0
ext_pow	0
famat_Z_gcd	0
famat_idealfactor	0
famat_to_nf	0
idealHNF_Z_factor	0
idealapprfact	0
idealpseudomin_nonscalar	0
nfdivmodpr	0
nfkermodpr	0
nfpowmodpr	0
nfsolvemodpr	0
to_famat	0
vecpow	0
err_divexact	7
hnf_QC_QC	7
idealmin	7
nfmulmodpr	7
ramified_root_simple	7
idealappr	14
idealappr0	14
not_in_ideal	14
chk_vdir	21
hnf_Q_Q	21
idealintersect	21
idealismaximal_mat	21
mat_ideal_two_elt2	21
ZV_cba	28
in_ideal	28
trivial_merge	28
idealaddmultoone	35
idealismaximal_int	42
idealtwoelt2	42
ZV_cba_extend	49
idealdiv0	56
matreduce	63
hnf_Z_QC	70
idealaddtoone0	70
idealmul0	70
hnf_Q_QC	77
hnf_Z_ZC	77
idealismaximal	77
idealismaximal_i	77
idealcoprime	84
nfV_eltembed	84
nfV_idealhnf	84
nfweilheight	84
nfweilheight_i	84
isideal	91
vec_mulid	91
idealaddtoone	98
sunits_makecoprime	98
nf_coprime_part	126
gpidealfactor	189
idealhnf0	413
idealhnf	665
idealprodprime	666
famat_to_Fp_coprime	693
vecinv	826
idealprod	840
vecdiv	903
idealprodval	1889
idealtwoelt0	2485
idealpow0	2499
idealdown	3031
idealispower	3899
idealdivexact	5214
gpidealval	7119
ramified_root	7735
idealsqrtn_int	7742
famat_div_shallow	10304
make_integral	10920
_mul	11358
nf_get_Gtwist1	12597
twistG	12639
idealdivpowprime	13007
idealred_elt	13207
famatV_factorback	13765
idealmulred	17207
idealaddtoone_i	17626
pr_inv	17824
famat_to_nf_moddivisor	20118
ext_inv	20370
famat_sub	20932
famat_sqr	22924
idealfactor_partial	25501
famat_inv_shallow	26974
prV_e_muls	28448
Q_nffactor	28469
_idealmulred	28565
ext_sqr	33872
_idealsqrred	35643
_sqr	35643
idealcoprimefact	37191
pr_inv_p	38454
idealsqr	38905
idealsqr_aux	38905
idealdiv	39443
famatV_zv_factorback	46711
idealredmodpower	49384
famat_remove_trivial	53777
idealapprfact_i	54068
pr_uniformizer	58332
famat_pow	60642
ext_mul	60730
prV_primes	61439
famat_pow_shallow	62007
factorbackprime	62398
addmul_mat	65651
idealHNF_inv	68848
idealpowred	80206
prV_lcm_capZ	82026
idealadd	82192
famat_mulpow_shallow	88280
p_makecoprime	94828
idealtwoelt	97110
RM_round_maxrank	97621
idealredmodpower_i	98754
idealnorm	104937
idealinv	114696
get_random_a	117287
famat_mulpows_shallow	118440
nf_to_Fp_coprime	119868
to_Fp_coprime	123046
famat_pows_shallow	123092
idealred0	138578
nf_get_Gtwist	138585
idealpseudomin	142264
append	151939
famat_add	158575
famatsmall_reduce	179095
vecsqr	185983
Q_to_famat	197120
famat_inv	199329
famat_div	200151
famat_mul_shallow	200784
idealHNF_inv_Z	210321
ok_elt	223586
idealHNF_factor	240044
mat_ideal_two_elt	249982
idealmulelt	265339
idealfactor	268212
idealfactor_limit	268637
idealpows	274482
idealsqrprime	285743
idealHNF_Z_factor_i	285857
idealHNF_factor_i	285860
famat_reduce	296089
Z_to_famat	376332
idealnumden	379868
Z_cba	413007
famat_mul	447400
idealHNF_mul	470164
idealmul	507241
idealmul_aux	507241
Z_ppio	532903
ZM_famat_limit	568112
idealaddtoone_raw	713225
_idealaddtoone	730851
idealhnf_two	739937
idealmulpowprime	769251
idealpow_aux	890084
idealpow	890088
idealHNF_mul_two	923663
idealpowprime	1198638
idealpseudominvec	1204259
idealpseudored	1286006
idealhnf_principal	1310742
lcmuu	1590030
idealhnf_shallow	1721556
famat_makecoprime	2002986
to_famat_shallow	2688431
pr_hnf	3579476
Z_cba_rec	3766441
idealHNF_norm_pval	4041609
zk_pvalrem	4092146
nf_remove_denom_p	4137944
idealHNF_val	4177114
Fl_invgen	5718255
idealval	9394334
idealtyp	15843396
vecmul	16009025
Z_ppo	18151184
u_ppo	54223892

Generated by: LCOV version 1.16