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 30318-7d854b8994) Lines: 1696 1845 91.9 %
Date: 2025-06-06 09:19:58 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
idealprod 840
vecdiv 903
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 13225
famatV_factorback 13765
idealmulred 17207
idealaddtoone_i 17633
pr_inv 17843
famat_to_nf_moddivisor 18606
ext_inv 20388
famat_sub 20929
famat_sqr 22923
idealfactor_partial 25515
famat_inv_shallow 26946
prV_e_muls 28454
Q_nffactor 28479
_idealmulred 28577
ext_sqr 33871
_idealsqrred 35656
_sqr 35656
idealcoprimefact 37190
pr_inv_p 38472
idealsqr 38918
idealsqr_aux 38918
idealdiv 39492
famatV_zv_factorback 46711
idealredmodpower 49399
idealapprfact_i 54089
famat_remove_trivial 55464
pr_uniformizer 58388
famat_pow 60642
ext_mul 60738
prV_primes 61452
famat_pow_shallow 61959
factorbackprime 63021
addmul_mat 65502
idealHNF_inv 68952
idealpowred 80186
prV_lcm_capZ 80927
idealadd 82640
famat_mulpow_shallow 88232
p_makecoprime 94848
idealtwoelt 97166
RM_round_maxrank 97678
idealredmodpower_i 98782
idealnorm 105161
idealinv 114896
get_random_a 117322
famat_mulpows_shallow 118436
nf_to_Fp_coprime 119840
to_Fp_coprime 123018
famat_pows_shallow 123069
idealred0 138558
nf_get_Gtwist 138565
idealpseudomin 142262
append 151937
famat_add 158589
famatsmall_reduce 179743
vecsqr 185983
Q_to_famat 197120
famat_inv 199344
famat_div 200145
famat_mul_shallow 200732
idealHNF_inv_Z 210440
ok_elt 223611
idealHNF_factor 240081
mat_ideal_two_elt 250117
idealmulelt 265339
idealfactor 268259
idealfactor_limit 268678
idealpows 274953
idealsqrprime 285727
idealHNF_factor_i 285906
idealHNF_Z_factor_i 285908
famat_reduce 294540
Z_to_famat 376329
idealnumden 379914
Z_cba 413007
famat_mul 447406
idealHNF_mul 470512
idealmul 507527
idealmul_aux 507527
Z_ppio 532903
ZM_famat_limit 568160
idealaddtoone_raw 713469
_idealaddtoone 731102
idealhnf_two 740050
idealmulpowprime 769739
idealpow 890041
idealpow_aux 890044
idealHNF_mul_two 923911
idealpowprime 1198772
idealpseudominvec 1204260
idealpseudored 1286138
idealhnf_principal 1311415
lcmuu 1587271
idealhnf_shallow 1722152
famat_makecoprime 2005940
to_famat_shallow 2688538
pr_hnf 3580281
Z_cba_rec 3766441
idealHNF_norm_pval 4042256
zk_pvalrem 4095361
nf_remove_denom_p 4141158
idealHNF_val 4177667
Fl_invgen 5697957
idealval 9395380
idealtyp 15848655
vecmul 15995505
Z_ppo 18151799
u_ppo 54207164

Generated by: LCOV version 1.16