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 30563-682842a727) Lines: 2215 2530 87.5 % Date: 2025-11-29 09:23:24 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	1650
divide_p_elt	2345
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	26394
bnf_build_cycgen	26726
genback	28777
add_principal_part	32173
expandext	32194
isprincipalfact	32194
bnf_compactfu	37421
RgM_expbitprec	48796
get_regulator	48894
bnf_build_units	50738
matbotidembs	55356
matenlarge	55356
get_random_ideal	55535
rnd_rel	55535
rnd_rel_seq	55535
_nfnewprec	57728
matbotid	62492
Buchall	62600
small_norm_prec	64015
class_group_gen	64021
getfu	64021
nthideal	64021
automorphism_perms	64022
compute_invres	64022
primeneeded	64022
extract_full_lattice	64028
automorphism_matrices	64083
add_cyclotomic_units	64095
delete_cache	64095
init_rel	64095
nfcyclotomicunits	64095
reallocate	64095
diagact_arch	64117
get_clg2	64117
buchall_end	65226
Buchall_param	65230
init_famat	65770
ballvol	66271
subFBgen	66271
FB_aut_perm	66272
FBgen	66272
delete_FB	66272
small_norm	66732
small_norm_seq	66732
assign_subFB	67031
clean_cols	92986
bad_check	96091
compute_R	96151
compute_multiple_of_R	121616
get_embs	122300
pre_allocate	122341
trim_list	122341
cleanarchunit	133894
free_GRHcheck	134686
init_GRHcheck	134686
nfsign_from_logarch	162326
isprincipal	174534
divide_p_id	185393
nf_cxlog_normalize	197126
modIm	204627
nfsign_tu	239981
nfsign_fu	241148
Fincke_Pohst_bound	266053
Fincke_Pohst_ideal	266056
Fincke_Pohst_ideal_both	266056
bnf_get_ga	271812
bnf_get_GD	276768
bnf_build_cheapfu	285486
bnf_has_fu	285777
bad_subFB	307556
triv_gen	464660
GRHchk	496401
compute_multiple_of_R_pivot	576800
get_log_embed	725341
cache_prime_dec	921250
set_rel_alpha	947582
rel_embed	1016154
init_red_mod_units	1107799
red_mod_units	1107799
tailres	1129641
dump_gen	1228025
fact_ok	1228572
get_norm_fact	1231459
RgC_expbitprec	1237071
isprincipalarch	1237072
SPLIT_i	1252512
fixarch	1306919
split_ideal	1392287
ZV_divrem	1392289
Ur_ZC_mul	1392290
bnf_get_Ur	1392290
get_pr_lists	1392351
recover_partFB	1392351
bnf_get_vbase	1392370
bnf_get_W	1397263
isprincipalall	1408671
SPLIT	1408696
prec_arch	1410477
GRHok	1532920
bnfisprincipal0	1841073
fact_update	1978380
act_arch	2057276
add	2250122
set_fact	2253531
tailresback	2259276
add_rel	2426318
bnf_get_B	2784592
bnf_get_C	2819166
expbitprec	2840307
add_to_fact	2845063
already_known	2905501
add_rel_i	2909643
cleanarch	3070723
divide_p_quo	5286457
divide_p	5474189
addRe_modIm	6905408
get_fs	7512532
store	9209815
factorgen	16807845
can_factor	18220072
step	28183784

Generated by: LCOV version 1.16