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 30565-738e569de9) Lines: 2215 2530 87.5 % Date: 2025-11-30 09:23:42 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	1715
divide_p_elt	2432
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	26418
bnf_build_cycgen	26725
genback	28777
add_principal_part	32173
expandext	32194
isprincipalfact	32194
bnf_compactfu	37421
RgM_expbitprec	48797
get_regulator	48893
bnf_build_units	50738
matbotidembs	55445
matenlarge	55445
get_random_ideal	55606
rnd_rel	55607
rnd_rel_seq	55607
_nfnewprec	57729
matbotid	62496
Buchall	62602
small_norm_prec	64016
getfu	64019
automorphism_perms	64021
class_group_gen	64021
compute_invres	64022
nthideal	64022
primeneeded	64022
extract_full_lattice	64025
automorphism_matrices	64084
add_cyclotomic_units	64099
delete_cache	64099
init_rel	64099
nfcyclotomicunits	64099
reallocate	64099
diagact_arch	64119
get_clg2	64119
buchall_end	65226
Buchall_param	65233
init_famat	65770
FBgen	66274
FB_aut_perm	66276
ballvol	66276
delete_FB	66276
subFBgen	66276
small_norm	66748
small_norm_seq	66748
assign_subFB	67034
clean_cols	93020
bad_check	96175
compute_R	96241
compute_multiple_of_R	121715
get_embs	122394
pre_allocate	122433
trim_list	122434
cleanarchunit	133893
init_GRHcheck	134685
free_GRHcheck	134687
nfsign_from_logarch	162328
isprincipal	174534
divide_p_id	185392
nf_cxlog_normalize	197126
modIm	204634
nfsign_tu	239991
nfsign_fu	241146
Fincke_Pohst_bound	266149
Fincke_Pohst_ideal	266155
Fincke_Pohst_ideal_both	266155
bnf_get_ga	271812
bnf_get_GD	276768
bnf_build_cheapfu	285479
bnf_has_fu	285766
bad_subFB	307629
triv_gen	464660
GRHchk	496405
compute_multiple_of_R_pivot	576965
get_log_embed	725484
cache_prime_dec	921251
set_rel_alpha	947684
rel_embed	1016426
init_red_mod_units	1107799
red_mod_units	1107799
tailres	1129646
dump_gen	1228024
fact_ok	1228573
get_norm_fact	1231460
RgC_expbitprec	1237071
isprincipalarch	1237074
SPLIT_i	1252508
fixarch	1306921
split_ideal	1392286
Ur_ZC_mul	1392290
ZV_divrem	1392290
bnf_get_Ur	1392290
recover_partFB	1392348
get_pr_lists	1392349
bnf_get_vbase	1392369
bnf_get_W	1397261
isprincipalall	1408672
SPLIT	1408692
prec_arch	1410479
GRHok	1532927
bnfisprincipal0	1841075
fact_update	1978517
act_arch	2057280
add	2250125
set_fact	2253750
tailresback	2259288
add_rel	2426553
bnf_get_B	2784594
bnf_get_C	2819167
expbitprec	2840308
add_to_fact	2845238
already_known	2905925
add_rel_i	2910061
cleanarch	3070747
divide_p_quo	5286681
divide_p	5474501
addRe_modIm	6905453
get_fs	7512775
store	9210257
factorgen	16808131
can_factor	18220437
step	28185044

Generated by: LCOV version 1.16