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 - buch2.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30532-0c728fd268) Lines: 2215 2530 87.5 %
Date: 2025-10-20 09:22:51 Functions: 159 176 90.3 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Fincke_Pohst_ideal_par 0
bnfinit_FP_worker 0
bnrnewprec_shallow 0
dbg_newrel 0
err_units 0
expand 0
i2print 0
inv_fact 0
isprincipalfact_or_fail 0
isprincipalforce 0
isprincipalgen 0
isprincipalgenforce 0
pack_FB 0
rnd_rel_par 0
small_norm_par 0
unpack_FB 0
wr_rel 0
be_honest 7
bnfnewprec 7
bnrnewprec 7
signunits 7
bnf_build_matalpha 20
makematal 20
nfsign_units 35
get_archclean 40
bnftestprimes 63
get_norm_fact_primes 69
get_y 69
bnf_compactfu_mat 70
myprecdbl 73
SUnits_archclean 77
chinese_unit 94
log2Mbound 94
log2fubound 94
vec_chinese_units 94
bnfnewprec_shallow 97
RgV_is1 105
ZM_remove_unused 164
chinese_unit_slice 274
chinese_unit_worker 274
not_given 396
Buchall_deg1 1204
FlxqX_chinese_unit 1379
try_elt 1682
divide_p_elt 2390
bnfinit0 2632
Vbase_to_FB 3349
pr_index 3349
idealHNF_mulred 3510
needed_bitprec 3849
idealmulpowprime2 4488
makecycgen 4956
ZV_mul 7283
pr_orbit_fill 11865
makeunits 24915
subFB_change 26444
bnf_build_cycgen 26725
genback 28776
add_principal_part 32172
expandext 32194
isprincipalfact 32194
bnf_compactfu 37422
RgM_expbitprec 48797
get_regulator 48894
bnf_build_units 50738
matbotidembs 55502
matenlarge 55502
get_random_ideal 55674
rnd_rel 55675
rnd_rel_seq 55675
_nfnewprec 57728
matbotid 62493
Buchall 62602
small_norm_prec 64020
automorphism_perms 64021
getfu 64021
class_group_gen 64022
compute_invres 64022
nthideal 64022
primeneeded 64022
extract_full_lattice 64027
automorphism_matrices 64084
add_cyclotomic_units 64097
delete_cache 64097
init_rel 64097
nfcyclotomicunits 64097
reallocate 64097
diagact_arch 64117
get_clg2 64117
buchall_end 65225
Buchall_param 65233
init_famat 65770
FBgen 66272
ballvol 66273
subFBgen 66273
FB_aut_perm 66274
delete_FB 66274
small_norm 66739
small_norm_seq 66739
assign_subFB 67031
clean_cols 93022
bad_check 96201
compute_R 96262
compute_multiple_of_R 121757
get_embs 122449
pre_allocate 122487
trim_list 122487
cleanarchunit 133895
init_GRHcheck 134685
free_GRHcheck 134686
nfsign_from_logarch 162324
isprincipal 174534
divide_p_id 185395
nf_cxlog_normalize 197126
modIm 204628
nfsign_tu 239977
nfsign_fu 241147
Fincke_Pohst_bound 266199
Fincke_Pohst_ideal 266199
Fincke_Pohst_ideal_both 266199
bnf_get_ga 271812
bnf_get_GD 276769
bnf_build_cheapfu 285479
bnf_has_fu 285766
bad_subFB 307669
triv_gen 464660
GRHchk 496404
compute_multiple_of_R_pivot 576602
get_log_embed 725500
cache_prime_dec 921244
set_rel_alpha 947814
rel_embed 1016446
init_red_mod_units 1107799
red_mod_units 1107799
tailres 1129650
dump_gen 1228025
fact_ok 1228574
get_norm_fact 1231459
isprincipalarch 1237071
RgC_expbitprec 1237072
SPLIT_i 1252512
fixarch 1306916
ZV_divrem 1392288
Ur_ZC_mul 1392289
bnf_get_Ur 1392289
split_ideal 1392289
recover_partFB 1392353
get_pr_lists 1392354
bnf_get_vbase 1392372
bnf_get_W 1397265
isprincipalall 1408672
SPLIT 1408694
prec_arch 1410482
GRHok 1532899
bnfisprincipal0 1841071
fact_update 1978831
act_arch 2057276
add 2250120
set_fact 2253726
tailresback 2259296
add_rel 2426546
bnf_get_B 2784596
bnf_get_C 2819173
expbitprec 2840310
add_to_fact 2845233
already_known 2905911
add_rel_i 2910054
cleanarch 3070722
divide_p_quo 5286657
divide_p 5474438
addRe_modIm 6905445
get_fs 7511742
store 9210213
factorgen 16808165
can_factor 18220370
step 28185399

Generated by: LCOV version 1.16