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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 30558-88b7dc3357) Lines: 2215 2530 87.5 % Date: 2025-11-26 09:22:00 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	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	1666
divide_p_elt	2357
bnfinit0	2632
Vbase_to_FB	3349
pr_index	3349
idealHNF_mulred	3509
needed_bitprec	3849
idealmulpowprime2	4488
makecycgen	4956
ZV_mul	7283
pr_orbit_fill	11865
makeunits	24915
subFB_change	26410
bnf_build_cycgen	26726
genback	28777
add_principal_part	32172
isprincipalfact	32192
expandext	32193
bnf_compactfu	37421
RgM_expbitprec	48797
get_regulator	48894
bnf_build_units	50738
matbotidembs	55411
matenlarge	55411
get_random_ideal	55580
rnd_rel	55581
rnd_rel_seq	55581
_nfnewprec	57729
matbotid	62492
Buchall	62588
small_norm_prec	64020
class_group_gen	64021
getfu	64021
automorphism_perms	64022
compute_invres	64022
nthideal	64022
primeneeded	64022
extract_full_lattice	64029
automorphism_matrices	64082
add_cyclotomic_units	64096
delete_cache	64096
init_rel	64096
nfcyclotomicunits	64096
reallocate	64096
diagact_arch	64119
get_clg2	64119
buchall_end	65224
Buchall_param	65230
init_famat	65770
FBgen	66271
ballvol	66271
delete_FB	66271
subFBgen	66271
FB_aut_perm	66273
small_norm	66742
small_norm_seq	66742
assign_subFB	67030
clean_cols	93042
bad_check	96153
compute_R	96214
compute_multiple_of_R	121676
get_embs	122357
pre_allocate	122397
trim_list	122397
cleanarchunit	133894
init_GRHcheck	134679
free_GRHcheck	134682
nfsign_from_logarch	162324
isprincipal	174534
divide_p_id	185394
nf_cxlog_normalize	197126
modIm	204632
nfsign_tu	239979
nfsign_fu	241135
Fincke_Pohst_bound	266103
Fincke_Pohst_ideal_both	266108
Fincke_Pohst_ideal	266109
bnf_get_ga	271813
bnf_get_GD	276769
bnf_build_cheapfu	285469
bnf_has_fu	285756
bad_subFB	307596
triv_gen	464660
GRHchk	496407
compute_multiple_of_R_pivot	577269
get_log_embed	725397
cache_prime_dec	921262
set_rel_alpha	947662
rel_embed	1016289
red_mod_units	1107798
init_red_mod_units	1107799
tailres	1129632
dump_gen	1228024
fact_ok	1228571
get_norm_fact	1231459
isprincipalarch	1237069
RgC_expbitprec	1237074
SPLIT_i	1252512
fixarch	1306929
ZV_divrem	1392288
Ur_ZC_mul	1392289
bnf_get_Ur	1392289
split_ideal	1392289
recover_partFB	1392339
get_pr_lists	1392352
bnf_get_vbase	1392372
bnf_get_W	1397265
isprincipalall	1408671
SPLIT	1408697
prec_arch	1410479
GRHok	1532845
bnfisprincipal0	1841074
fact_update	1978520
act_arch	2057279
add	2250122
set_fact	2253691
tailresback	2259249
add_rel	2426483
bnf_get_B	2784597
bnf_get_C	2819167
expbitprec	2840312
add_to_fact	2845239
already_known	2905790
add_rel_i	2909925
cleanarch	3070723
divide_p_quo	5286653
divide_p	5474400
addRe_modIm	6905456
get_fs	7512132
store	9210157
factorgen	16807913
can_factor	18220144
step	28186260

Generated by: LCOV version 1.16