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 30532-0c728fd268) Lines: 2215 2530 87.5 % Date: 2025-10-23 09:22:47 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	1719
divide_p_elt	2419
bnfinit0	2632
Vbase_to_FB	3349
pr_index	3349
idealHNF_mulred	3507
needed_bitprec	3849
idealmulpowprime2	4488
makecycgen	4956
ZV_mul	7283
pr_orbit_fill	11865
makeunits	24914
subFB_change	26429
bnf_build_cycgen	26725
genback	28777
add_principal_part	32173
expandext	32194
isprincipalfact	32194
bnf_compactfu	37422
RgM_expbitprec	48797
get_regulator	48894
bnf_build_units	50737
matbotidembs	55461
matenlarge	55461
get_random_ideal	55625
rnd_rel	55625
rnd_rel_seq	55625
_nfnewprec	57729
matbotid	62495
Buchall	62600
class_group_gen	64020
small_norm_prec	64020
getfu	64021
nthideal	64021
automorphism_perms	64022
compute_invres	64022
primeneeded	64022
extract_full_lattice	64029
automorphism_matrices	64085
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	65234
init_famat	65770
FBgen	66275
ballvol	66275
FB_aut_perm	66276
delete_FB	66276
subFBgen	66276
small_norm	66748
small_norm_seq	66748
assign_subFB	67038
clean_cols	93037
bad_check	96188
compute_R	96249
compute_multiple_of_R	121719
get_embs	122409
pre_allocate	122450
trim_list	122450
cleanarchunit	133895
init_GRHcheck	134685
free_GRHcheck	134686
nfsign_from_logarch	162324
isprincipal	174534
divide_p_id	185395
nf_cxlog_normalize	197126
modIm	204627
nfsign_tu	239989
nfsign_fu	241155
Fincke_Pohst_ideal	266157
Fincke_Pohst_ideal_both	266157
Fincke_Pohst_bound	266158
bnf_get_ga	271813
bnf_get_GD	276769
bnf_build_cheapfu	285486
bnf_has_fu	285773
bad_subFB	307660
triv_gen	464660
GRHchk	496404
compute_multiple_of_R_pivot	576949
get_log_embed	725494
cache_prime_dec	921252
set_rel_alpha	947718
rel_embed	1016409
init_red_mod_units	1107798
red_mod_units	1107798
tailres	1129613
dump_gen	1228024
fact_ok	1228571
get_norm_fact	1231460
RgC_expbitprec	1237069
isprincipalarch	1237073
SPLIT_i	1252511
fixarch	1306923
Ur_ZC_mul	1392290
ZV_divrem	1392290
bnf_get_Ur	1392290
split_ideal	1392291
get_pr_lists	1392355
recover_partFB	1392355
bnf_get_vbase	1392374
bnf_get_W	1397267
isprincipalall	1408672
SPLIT	1408699
prec_arch	1410478
GRHok	1532903
bnfisprincipal0	1841076
fact_update	1978504
act_arch	2057277
add	2250132
set_fact	2253761
tailresback	2259199
add_rel	2426545
bnf_get_B	2784598
bnf_get_C	2819168
expbitprec	2840307
add_to_fact	2845229
already_known	2905881
add_rel_i	2910016
cleanarch	3070743
divide_p_quo	5286654
divide_p	5474468
addRe_modIm	6905439
get_fs	7511672
store	9210209
factorgen	16807896
can_factor	18220181
step	28184422

Generated by: LCOV version 1.16