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 30401-87099e65a6) Lines: 1696 1845 91.9 %
Date: 2025-07-18 09:23:12 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 11363
nf_get_Gtwist1 12597
twistG 12639
idealdivpowprime 13007
idealred_elt 13396
famatV_factorback 13765
idealmulred 17207
idealaddtoone_i 17633
pr_inv 17825
famat_to_nf_moddivisor 18606
ext_inv 20370
famat_sub 20931
famat_sqr 22923
idealfactor_partial 25515
famat_inv_shallow 26945
prV_e_muls 28479
Q_nffactor 28490
_idealmulred 28570
ext_sqr 33871
_idealsqrred 35649
_sqr 35649
idealcoprimefact 37190
pr_inv_p 38480
idealsqr 39135
idealsqr_aux 39135
idealdiv 39716
idealapprfact_i 54096
famatV_zv_factorback 56273
pr_uniformizer 58449
idealredmodpower 59185
famat_pow 60642
ext_mul 60726
famat_pow_shallow 61964
prV_primes 66234
addmul_mat 66887
famat_remove_trivial 66930
idealHNF_inv 69848
factorbackprime 75591
idealpowred 80176
prV_lcm_capZ 80934
idealadd 83529
famat_mulpow_shallow 88237
p_makecoprime 94887
idealtwoelt 97565
RM_round_maxrank 98077
idealnorm 105161
idealinv 115774
get_random_a 117650
idealredmodpower_i 118356
nf_to_Fp_coprime 119854
to_Fp_coprime 123032
idealred0 138523
nf_get_Gtwist 138530
idealpseudomin 142398
famat_mulpows_shallow 147573
append 151936
famat_pows_shallow 151998
famat_add 158570
vecsqr 185983
famatsmall_reduce 189697
Q_to_famat 197116
famat_inv 199309
famat_div 200130
idealHNF_inv_Z 211865
famat_mul_shallow 224849
ok_elt 225077
idealHNF_factor 240090
mat_ideal_two_elt 250494
idealmulelt 266235
idealfactor 268272
idealfactor_limit 268703
idealHNF_Z_factor_i 293965
idealHNF_factor_i 293966
famat_reduce 304104
idealpows 313255
idealsqrprime 317329
Z_to_famat 376308
idealnumden 389708
Z_cba 413007
famat_mul 447371
idealHNF_mul 473241
idealmul 511772
idealmul_aux 511772
Z_ppio 532903
ZM_famat_limit 568161
idealaddtoone_raw 785716
idealhnf_two 802133
_idealaddtoone 803350
idealmulpowprime 825089
idealpow 941501
idealpow_aux 941504
idealHNF_mul_two 970501
idealpseudominvec 1250411
idealpowprime 1305544
idealpseudored 1342316
idealhnf_principal 1389559
lcmuu 1636688
idealhnf_shallow 1853689
famat_makecoprime 2218684
to_famat_shallow 2765790
Z_cba_rec 3766441
pr_hnf 3798498
idealHNF_norm_pval 4101132
idealHNF_val 4238705
zk_pvalrem 4318895
nf_remove_denom_p 4364693
Fl_invgen 5895421
idealval 9476674
vecmul 16008903
idealtyp 16215453
Z_ppo 18262025
u_ppo 54295844

Generated by: LCOV version 1.16