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 30480-572da319a6) Lines: 1696 1845 91.9 %
Date: 2025-08-27 09:24:05 Functions: 170 185 91.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fl_invgen 5895777
Q_nffactor 28490
Q_to_famat 197117
RM_round_maxrank 98083
ZM_famat_limit 568161
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 18700894
Z_to_famat 376310
_idealaddtoone 803355
_idealmulred 28591
_idealsqrred 35665
_mul 11370
_sqr 35665
addmul_mat 66873
append 151937
chk_vdir 21
err_divexact 7
ext_inv 20375
ext_mul 60781
ext_pow 0
ext_sqr 33887
factorbackprime 75591
famatV_factorback 13765
famatV_zv_factorback 56273
famat_Z_gcd 0
famat_add 158576
famat_div 200132
famat_div_shallow 10304
famat_idealfactor 0
famat_inv 199315
famat_inv_shallow 26945
famat_makecoprime 2218691
famat_mul 447380
famat_mul_shallow 224843
famat_mulpow_shallow 88237
famat_mulpows_shallow 147569
famat_pow 60642
famat_pow_shallow 61964
famat_pows_shallow 151993
famat_reduce 304104
famat_remove_trivial 66930
famat_sqr 22925
famat_sub 20932
famat_to_Fp_coprime 693
famat_to_nf 0
famat_to_nf_moddivisor 18606
famatsmall_reduce 189691
get_random_a 117657
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 293966
idealHNF_factor 240089
idealHNF_factor_i 293965
idealHNF_inv 69849
idealHNF_inv_Z 211893
idealHNF_mul 473269
idealHNF_mul_two 970553
idealHNF_norm_pval 4101126
idealHNF_val 4238688
idealadd 83529
idealaddmultoone 35
idealaddtoone 98
idealaddtoone0 70
idealaddtoone_i 17633
idealaddtoone_raw 785727
idealappr 14
idealappr0 14
idealapprfact 0
idealapprfact_i 54096
idealcoprime 84
idealcoprimefact 37191
idealdiv 39716
idealdiv0 56
idealdivexact 5214
idealdivpowprime 13007
idealdown 3031
idealfactor 268270
idealfactor_limit 268696
idealfactor_partial 25515
idealhnf 665
idealhnf0 413
idealhnf_principal 1389563
idealhnf_shallow 1853722
idealhnf_two 802127
idealintersect 21
idealinv 115779
idealismaximal 77
idealismaximal_i 77
idealismaximal_int 42
idealismaximal_mat 21
idealispower 3899
idealmin 7
idealmul 511792
idealmul0 70
idealmul_aux 511792
idealmulelt 266235
idealmulpowprime 825042
idealmulred 17221
idealnorm 105665
idealnumden 389706
idealpow 941481
idealpow0 2499
idealpow_aux 941482
idealpowprime 1305487
idealpowred 80203
idealpows 313248
idealprod 1064
idealprodprime 666
idealprodval 1917
idealpseudomin 142433
idealpseudomin_nonscalar 0
idealpseudominvec 1250409
idealpseudored 1342315
idealred0 138571
idealred_elt 13390
idealredmodpower 59182
idealredmodpower_i 118356
idealsqr 39151
idealsqr_aux 39151
idealsqrprime 317312
idealsqrtn_int 7742
idealtwoelt 97572
idealtwoelt0 2485
idealtwoelt2 42
idealtyp 16231714
idealval 9492237
in_ideal 28
isideal 91
lcmuu 1636797
make_integral 10920
mat_ideal_two_elt 250501
mat_ideal_two_elt2 21
matreduce 63
nfV_eltembed 84
nfV_idealhnf 84
nf_coprime_part 126
nf_get_Gtwist 138578
nf_get_Gtwist1 12597
nf_remove_denom_p 4364704
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 225085
p_makecoprime 94895
prV_e_muls 28441
prV_lcm_capZ 80934
prV_primes 66234
pr_hnf 3799084
pr_inv 17829
pr_inv_p 38487
pr_uniformizer 58449
ramified_root 7735
ramified_root_simple 7
sunits_makecoprime 98
to_Fp_coprime 123032
to_famat 0
to_famat_shallow 2765827
trivial_merge 28
twistG 12639
u_ppo 54295902
vec_mulid 91
vecdiv 903
vecinv 826
vecmul 16010157
vecpow 0
vecsqr 185983
zk_pvalrem 4318897

Generated by: LCOV version 1.16