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 30499-74bdd0ac5b) Lines: 2205 2405 91.7 %
Date: 2025-09-17 09:23:49 Functions: 156 167 93.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
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
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 1646
divide_p_elt 2350
bnfinit0 2632
Vbase_to_FB 3349
pr_index 3349
idealHNF_mulred 3511
needed_bitprec 3849
idealmulpowprime2 4488
makecycgen 4956
ZV_mul 7283
pr_orbit_fill 11865
makeunits 24915
subFB_change 26429
bnf_build_cycgen 26726
genback 28777
add_principal_part 32173
expandext 32193
isprincipalfact 32194
bnf_compactfu 37421
RgM_expbitprec 48797
get_regulator 48894
bnf_build_units 50738
matbotidembs 55467
matenlarge 55467
get_random_ideal 55646
rnd_rel 55646
_nfnewprec 57728
matbotid 62492
Buchall 62602
automorphism_perms 64021
class_group_gen 64021
small_norm_prec 64021
compute_invres 64022
getfu 64022
nthideal 64022
primeneeded 64022
extract_full_lattice 64029
automorphism_matrices 64084
add_cyclotomic_units 64095
delete_cache 64095
init_rel 64095
nfcyclotomicunits 64095
reallocate 64095
diagact_arch 64118
get_clg2 64118
buchall_end 65226
Buchall_param 65233
init_famat 65770
FBgen 66271
FB_aut_perm 66272
ballvol 66272
delete_FB 66272
subFBgen 66272
small_norm 66732
assign_subFB 67037
clean_cols 93006
bad_check 96196
compute_R 96258
compute_multiple_of_R 121723
get_embs 122412
pre_allocate 122451
trim_list 122451
cleanarchunit 133893
init_GRHcheck 134683
free_GRHcheck 134687
nfsign_from_logarch 162323
isprincipal 174534
divide_p_id 185396
nf_cxlog_normalize 197126
modIm 204632
nfsign_tu 239981
nfsign_fu 241162
Fincke_Pohst_ideal 266161
Fincke_Pohst_bound 266167
bnf_get_ga 271813
bnf_get_GD 276769
bnf_build_cheapfu 285476
bnf_has_fu 285763
bad_subFB 307657
triv_gen 464660
GRHchk 496408
compute_multiple_of_R_pivot 577030
get_log_embed 725434
cache_prime_dec 921255
set_rel_alpha 947781
rel_embed 1016373
init_red_mod_units 1107798
red_mod_units 1107799
tailres 1129645
dump_gen 1228020
fact_ok 1228571
get_norm_fact 1231460
isprincipalarch 1237068
RgC_expbitprec 1237074
SPLIT_i 1252512
fixarch 1306927
Ur_ZC_mul 1392290
bnf_get_Ur 1392290
ZV_divrem 1392291
split_ideal 1392292
get_pr_lists 1392355
recover_partFB 1392355
bnf_get_vbase 1392375
bnf_get_W 1397268
isprincipalall 1408672
SPLIT 1408697
prec_arch 1410481
GRHok 1532920
bnfisprincipal0 1841075
fact_update 1978520
act_arch 2057279
add 2250132
set_fact 2253598
tailresback 2259293
add_rel 2426408
bnf_get_B 2784598
bnf_get_C 2819172
expbitprec 2840312
add_to_fact 2845131
already_known 2905733
add_rel_i 2909863
cleanarch 3070716
divide_p_quo 5286546
divide_p 5474287
addRe_modIm 6905455
get_fs 7512696
store 9209928
factorgen 16807878
can_factor 18220132
step 28183235

Generated by: LCOV version 1.16