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 30425-4669acb345) Lines: 2197 2397 91.7 %
Date: 2025-07-31 09:23:41 Functions: 155 166 93.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Buchall 62599
Buchall_deg1 1204
Buchall_param 65216
FB_aut_perm 66258
FBgen 66255
Fincke_Pohst_bound 265636
Fincke_Pohst_ideal 265637
FlxqX_chinese_unit 1379
GRHchk 496210
GRHok 1532683
RgC_expbitprec 1234925
RgM_expbitprec 48790
RgV_is1 105
SPLIT 1406566
SPLIT_i 1250410
SUnits_archclean 77
Ur_ZC_mul 1390160
Vbase_to_FB 3349
ZM_remove_unused 164
ZV_divrem 1390160
ZV_mul 7283
_nfnewprec 57713
act_arch 2055037
add 2247873
addRe_modIm 6896376
add_cyclotomic_units 64081
add_principal_part 32173
add_rel 2422454
add_rel_i 2905759
add_to_fact 2841555
already_known 2901624
assign_subFB 67021
automorphism_matrices 64070
automorphism_perms 64008
bad_check 96128
bad_subFB 307511
ballvol 66257
be_honest 7
bnf_build_cheapfu 285466
bnf_build_cycgen 26726
bnf_build_matalpha 20
bnf_build_units 50731
bnf_compactfu 37415
bnf_compactfu_mat 70
bnf_get_B 2780335
bnf_get_C 2814914
bnf_get_GD 276751
bnf_get_Ur 1390160
bnf_get_W 1395134
bnf_get_ga 271795
bnf_get_vbase 1390241
bnf_has_fu 285746
bnfinit0 2618
bnfisprincipal0 1838868
bnfnewprec 7
bnfnewprec_shallow 97
bnftestprimes 63
bnrnewprec 7
bnrnewprec_shallow 0
buchall_end 65211
cache_prime_dec 920983
can_factor 18121402
chinese_unit 94
chinese_unit_slice 274
chinese_unit_worker 274
class_group_gen 64007
clean_cols 93006
cleanarch 3064789
cleanarchunit 133866
compute_R 96188
compute_invres 64008
compute_multiple_of_R 121657
compute_multiple_of_R_pivot 575985
dbg_newrel 0
delete_FB 66257
delete_cache 64081
diagact_arch 64104
divide_p 5458757
divide_p_elt 2340
divide_p_id 185367
divide_p_quo 5271053
dump_gen 1225894
err_units 0
expand 0
expandext 32193
expbitprec 2838085
extract_full_lattice 64013
fact_ok 1226444
fact_update 1978483
factorgen 16711326
fixarch 1304766
free_GRHcheck 134673
genback 28770
get_archclean 40
get_clg2 64104
get_embs 122345
get_fs 7507186
get_log_embed 723774
get_norm_fact 1229313
get_norm_fact_primes 69
get_pr_lists 1390223
get_random_ideal 55579
get_regulator 48886
get_y 69
getfu 64008
i2print 0
idealHNF_mulred 3510
idealmulpowprime2 4488
init_GRHcheck 134670
init_famat 65755
init_red_mod_units 1107781
init_rel 64081
inv_fact 0
isprincipal 174534
isprincipalall 1406542
isprincipalarch 1234927
isprincipalfact 32193
isprincipalfact_or_fail 0
isprincipalforce 0
isprincipalgen 0
isprincipalgenforce 0
log2Mbound 94
log2fubound 94
makecycgen 4956
makematal 20
makeunits 24908
matbotid 62485
matbotidembs 55429
matenlarge 55429
modIm 204587
myprecdbl 73
needed_bitprec 3831
nf_cxlog_normalize 194924
nfcyclotomicunits 64081
nfsign_from_logarch 162323
nfsign_fu 241153
nfsign_tu 239977
nfsign_units 35
not_given 389
nthideal 64008
pr_index 3349
pr_orbit_fill 11865
pre_allocate 122385
prec_arch 1408354
primeneeded 64007
reallocate 64081
recover_partFB 1390223
red_mod_units 1107781
rel_embed 1014536
rnd_rel 55579
set_fact 2249975
set_rel_alpha 946021
signunits 7
small_norm 66734
split_ideal 1390158
step 28024836
store 9190806
subFB_change 26379
subFBgen 66257
tailres 1129366
tailresback 2258732
trim_list 122385
triv_gen 464583
try_elt 1650
vec_chinese_units 94
wr_rel 0

Generated by: LCOV version 1.16