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 30480-572da319a6) Lines: 2205 2405 91.7 %
Date: 2025-08-27 09:24:05 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 1649
divide_p_elt 2340
bnfinit0 2625
Vbase_to_FB 3349
pr_index 3349
idealHNF_mulred 3505
needed_bitprec 3849
idealmulpowprime2 4488
makecycgen 4956
ZV_mul 7283
pr_orbit_fill 11865
makeunits 24908
subFB_change 26390
bnf_build_cycgen 26725
genback 28777
add_principal_part 32173
expandext 32193
isprincipalfact 32193
bnf_compactfu 37415
RgM_expbitprec 48797
get_regulator 48894
bnf_build_units 50731
matbotidembs 55485
matenlarge 55485
get_random_ideal 55640
rnd_rel 55640
_nfnewprec 57726
matbotid 62492
Buchall 62600
small_norm_prec 64012
class_group_gen 64013
primeneeded 64014
automorphism_perms 64015
compute_invres 64015
getfu 64015
nthideal 64015
extract_full_lattice 64022
automorphism_matrices 64077
init_rel 64087
reallocate 64087
add_cyclotomic_units 64088
delete_cache 64088
nfcyclotomicunits 64088
diagact_arch 64112
get_clg2 64112
Buchall_param 65218
buchall_end 65219
init_famat 65763
FBgen 66263
ballvol 66264
subFBgen 66264
FB_aut_perm 66265
delete_FB 66265
small_norm 66735
assign_subFB 67032
clean_cols 93032
bad_check 96177
compute_R 96238
compute_multiple_of_R 121719
get_embs 122409
pre_allocate 122449
trim_list 122449
cleanarchunit 133885
init_GRHcheck 134676
free_GRHcheck 134679
nfsign_from_logarch 162325
isprincipal 174534
divide_p_id 185365
nf_cxlog_normalize 194924
modIm 204631
nfsign_tu 239986
nfsign_fu 241162
Fincke_Pohst_ideal 266174
Fincke_Pohst_bound 266177
bnf_get_ga 271813
bnf_get_GD 276769
bnf_build_cheapfu 285482
bnf_has_fu 285762
bad_subFB 307580
triv_gen 464583
GRHchk 496367
compute_multiple_of_R_pivot 576158
get_log_embed 725452
cache_prime_dec 921173
set_rel_alpha 947801
rel_embed 1016334
red_mod_units 1107797
init_red_mod_units 1107799
tailres 1129549
dump_gen 1225897
fact_ok 1226445
get_norm_fact 1229333
RgC_expbitprec 1234944
isprincipalarch 1234944
SPLIT_i 1250409
fixarch 1304801
split_ideal 1390160
Ur_ZC_mul 1390163
bnf_get_Ur 1390163
ZV_divrem 1390164
recover_partFB 1390223
get_pr_lists 1390224
bnf_get_vbase 1390243
bnf_get_W 1395136
isprincipalall 1406544
SPLIT 1406565
prec_arch 1408353
GRHok 1532868
bnfisprincipal0 1838870
fact_update 1978677
act_arch 2055125
add 2247957
set_fact 2253662
tailresback 2259092
add_rel 2426436
bnf_get_B 2780341
bnf_get_C 2814915
expbitprec 2838182
add_to_fact 2845228
already_known 2905710
add_rel_i 2909845
cleanarch 3066366
divide_p_quo 5286620
divide_p 5474316
addRe_modIm 6901098
get_fs 7512206
store 9209997
factorgen 16806626
can_factor 18216736
step 28185164

Generated by: LCOV version 1.16