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 - base4.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30499-74bdd0ac5b) Lines: 1696 1845 91.9 %
Date: 2025-09-18 09:23:44 Functions: 170 185 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_invgen 5897282
Q_nffactor 28504
Q_to_famat 197112
RM_round_maxrank 98090
ZM_famat_limit 568158
ZV_cba 28
ZV_cba_extend 49
Z_cba 757267
Z_cba_rec 6827597
Z_dcba_rec 0
Z_ppgle 0
Z_ppio 986062
Z_ppo 18702736
Z_to_famat 376307
_idealaddtoone 803350
_idealmulred 28591
_idealsqrred 35663
_mul 11370
_sqr 35663
addmul_mat 66464
append 154141
chk_vdir 21
err_divexact 7
ext_inv 20378
ext_mul 60784
ext_pow 0
ext_sqr 33885
factorbackprime 75585
famatV_factorback 13765
famatV_zv_factorback 56271
famat_Z_gcd 0
famat_add 160784
famat_div 200129
famat_div_shallow 10304
famat_idealfactor 0
famat_inv 199320
famat_inv_shallow 26946
famat_makecoprime 2220882
famat_mul 449585
famat_mul_shallow 224836
famat_mulpow_shallow 88232
famat_mulpows_shallow 147569
famat_pow 60642
famat_pow_shallow 61959
famat_pows_shallow 151995
famat_reduce 306308
famat_remove_trivial 66958
famat_sqr 22923
famat_sub 20927
famat_to_Fp_coprime 693
famat_to_nf 0
famat_to_nf_moddivisor 18606
famatsmall_reduce 189697
get_random_a 117658
gpidealfactor 189
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 293970
idealHNF_factor 240091
idealHNF_factor_i 293971
idealHNF_inv 69848
idealHNF_inv_Z 211897
idealHNF_mul 473245
idealHNF_mul_two 970514
idealHNF_norm_pval 4101125
idealHNF_val 4238680
idealadd 83529
idealaddmultoone 35
idealaddtoone 98
idealaddtoone0 70
idealaddtoone_i 17633
idealaddtoone_raw 785720
idealappr 14
idealappr0 14
idealapprfact 0
idealapprfact_i 54096
idealcoprime 84
idealcoprimefact 37190
idealdiv 39716
idealdiv0 56
idealdivexact 5214
idealdivpowprime 13007
idealdown 3031
idealfactor 268289
idealfactor_limit 268716
idealfactor_partial 25515
idealhnf 665
idealhnf0 413
idealhnf_principal 1391706
idealhnf_shallow 1855859
idealhnf_two 802157
idealintersect 21
idealinv 115782
idealismaximal 77
idealismaximal_i 77
idealismaximal_int 42
idealismaximal_mat 21
idealispower 3899
idealmin 7
idealmul 511790
idealmul0 70
idealmul_aux 511791
idealmulelt 266235
idealmulpowprime 824805
idealmulred 17221
idealnorm 105693
idealnumden 389712
idealpow 941491
idealpow0 2499
idealpow_aux 941494
idealpowprime 1305517
idealpowred 80206
idealpows 313264
idealprod 1064
idealprodprime 666
idealprodval 1917
idealpseudomin 142437
idealpseudomin_nonscalar 0
idealpseudominvec 1252509
idealpseudored 1344416
idealred0 138575
idealred_elt 13390
idealredmodpower 59183
idealredmodpower_i 118355
idealsqr 39149
idealsqr_aux 39149
idealsqrprime 317337
idealsqrtn_int 7742
idealtwoelt 97579
idealtwoelt0 2485
idealtwoelt2 42
idealtyp 16233878
idealval 9492185
in_ideal 28
isideal 91
lcmuu 1636611
make_integral 10920
mat_ideal_two_elt 250508
mat_ideal_two_elt2 21
matreduce 63
nfV_eltembed 84
nfV_idealhnf 84
nf_coprime_part 126
nf_get_Gtwist 138582
nf_get_Gtwist1 12597
nf_remove_denom_p 4371316
nf_to_Fp_coprime 119854
nfdivmodpr 0
nfkermodpr 0
nfmulmodpr 7
nfpowmodpr 0
nfsolvemodpr 0
nfweilheight 84
nfweilheight_i 84
not_in_ideal 14
ok_elt 224876
p_makecoprime 94889
prV_e_muls 28498
prV_lcm_capZ 80962
prV_primes 66234
pr_hnf 3801180
pr_inv 17833
pr_inv_p 38488
pr_uniformizer 58444
ramified_root 7735
ramified_root_simple 7
sunits_makecoprime 98
to_Fp_coprime 123032
to_famat 0
to_famat_shallow 2768044
trivial_merge 28
twistG 12639
u_ppo 54295830
vec_mulid 91
vecdiv 903
vecinv 826
vecmul 16001351
vecpow 0
vecsqr 185983
zk_pvalrem 4325525

Generated by: LCOV version 1.16