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 30489-4d12223a6e) Lines: 1696 1845 91.9 %
Date: 2025-09-14 09:22:35 Functions: 170 185 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by 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
vecdiv 903
idealprod 1064
idealprodval 1917
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 11370
nf_get_Gtwist1 12597
twistG 12639
idealdivpowprime 13007
idealred_elt 13390
famatV_factorback 13765
idealmulred 17221
idealaddtoone_i 17633
pr_inv 17842
famat_to_nf_moddivisor 18606
ext_inv 20387
famat_sub 20932
famat_sqr 22923
idealfactor_partial 25515
famat_inv_shallow 26945
prV_e_muls 28448
Q_nffactor 28494
_idealmulred 28591
ext_sqr 33885
_idealsqrred 35663
_sqr 35663
idealcoprimefact 37191
pr_inv_p 38479
idealsqr 39149
idealsqr_aux 39149
idealdiv 39716
idealapprfact_i 54096
famatV_zv_factorback 56272
pr_uniformizer 58450
idealredmodpower 59181
famat_pow 60642
ext_mul 60792
famat_pow_shallow 61965
prV_primes 66233
addmul_mat 66831
famat_remove_trivial 66958
idealHNF_inv 69848
factorbackprime 75591
idealpowred 80208
prV_lcm_capZ 80962
idealadd 83529
famat_mulpow_shallow 88238
p_makecoprime 94896
idealtwoelt 97579
RM_round_maxrank 98090
idealnorm 105693
idealinv 115791
get_random_a 117658
idealredmodpower_i 118356
nf_to_Fp_coprime 119854
to_Fp_coprime 123032
idealred0 138580
nf_get_Gtwist 138586
idealpseudomin 142442
famat_mulpows_shallow 147569
famat_pows_shallow 151993
append 154143
famat_add 160792
vecsqr 185983
famatsmall_reduce 189701
Q_to_famat 197116
famat_inv 199325
famat_div 200130
idealHNF_inv_Z 211909
famat_mul_shallow 224846
ok_elt 225044
idealHNF_factor 240092
mat_ideal_two_elt 250512
idealmulelt 266235
idealfactor 268285
idealfactor_limit 268713
idealHNF_factor_i 293977
idealHNF_Z_factor_i 293978
famat_reduce 306307
idealpows 313266
idealsqrprime 317332
Z_to_famat 376307
idealnumden 389716
famat_mul 449594
idealHNF_mul 473286
idealmul 511794
idealmul_aux 511794
ZM_famat_limit 568161
Z_cba 757267
idealaddtoone_raw 785721
idealhnf_two 802202
_idealaddtoone 803355
idealmulpowprime 825011
idealpow_aux 941532
idealpow 941534
idealHNF_mul_two 970590
Z_ppio 986062
idealpseudominvec 1252511
idealpowprime 1305535
idealpseudored 1344419
idealhnf_principal 1391704
lcmuu 1636646
idealhnf_shallow 1855853
famat_makecoprime 2220893
to_famat_shallow 2768050
pr_hnf 3801167
idealHNF_norm_pval 4101096
idealHNF_val 4238623
zk_pvalrem 4325557
nf_remove_denom_p 4371361
Fl_invgen 5897423
Z_cba_rec 6827597
idealval 9492212
vecmul 16002241
idealtyp 16233910
Z_ppo 18703104
u_ppo 54295782

Generated by: LCOV version 1.16