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 30347-cb65b7994e) Lines: 1696 1845 91.9 %
Date: 2025-06-27 09:22:08 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 13389
famatV_factorback 13765
idealmulred 17207
idealaddtoone_i 17633
pr_inv 17825
famat_to_nf_moddivisor 18606
ext_inv 20370
famat_sub 20930
famat_sqr 22923
idealfactor_partial 25515
famat_inv_shallow 26945
prV_e_muls 28482
Q_nffactor 28497
_idealmulred 28570
ext_sqr 33871
_idealsqrred 35649
_sqr 35649
idealcoprimefact 37190
pr_inv_p 38481
idealsqr 39135
idealsqr_aux 39135
idealdiv 39716
idealapprfact_i 54096
famatV_zv_factorback 56273
pr_uniformizer 58449
idealredmodpower 59185
famat_pow 60642
ext_mul 60727
famat_pow_shallow 61965
prV_primes 66234
addmul_mat 66572
famat_remove_trivial 66930
idealHNF_inv 69848
factorbackprime 75591
idealpowred 80177
prV_lcm_capZ 80934
idealadd 83529
famat_mulpow_shallow 88238
p_makecoprime 94897
idealtwoelt 97565
RM_round_maxrank 98077
idealnorm 105161
idealinv 115774
get_random_a 117651
idealredmodpower_i 118356
nf_to_Fp_coprime 119854
to_Fp_coprime 123032
idealred0 138525
nf_get_Gtwist 138532
idealpseudomin 142394
famat_mulpows_shallow 147572
append 151936
famat_pows_shallow 151995
famat_add 158572
vecsqr 185983
famatsmall_reduce 188302
Q_to_famat 197117
famat_inv 199310
famat_div 200130
idealHNF_inv_Z 211860
famat_mul_shallow 224845
ok_elt 224940
idealHNF_factor 240090
mat_ideal_two_elt 250494
idealmulelt 266235
idealfactor 268279
idealfactor_limit 268706
idealHNF_Z_factor_i 293965
idealHNF_factor_i 293966
famat_reduce 304104
idealpows 313243
idealsqrprime 317291
Z_to_famat 376310
idealnumden 389709
Z_cba 413007
famat_mul 447374
idealHNF_mul 473248
idealmul 511766
idealmul_aux 511767
Z_ppio 532903
ZM_famat_limit 568161
idealaddtoone_raw 785706
idealhnf_two 802129
_idealaddtoone 803342
idealmulpowprime 824596
idealpow 941501
idealpow_aux 941506
idealHNF_mul_two 970515
idealpseudominvec 1250411
idealpowprime 1305504
idealpseudored 1342320
idealhnf_principal 1389564
lcmuu 1636612
idealhnf_shallow 1853714
famat_makecoprime 2218685
to_famat_shallow 2765792
Z_cba_rec 3766441
pr_hnf 3798550
idealHNF_norm_pval 4100971
idealHNF_val 4238502
zk_pvalrem 4318870
nf_remove_denom_p 4364676
Fl_invgen 5895444
idealval 9476405
vecmul 15997964
idealtyp 16215149
Z_ppo 18261157
u_ppo 54290023

Generated by: LCOV version 1.16