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: 2025-11-27 09:21:46 Functions: 159 176 90.3 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62602
Buchall_deg1	1204
Buchall_param	65234
FB_aut_perm	66274
FBgen	66273
Fincke_Pohst_bound	266204
Fincke_Pohst_ideal	266207
Fincke_Pohst_ideal_both	266207
Fincke_Pohst_ideal_par	0
FlxqX_chinese_unit	1379
GRHchk	496405
GRHok	1532922
RgC_expbitprec	1237073
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1408697
SPLIT_i	1252510
SUnits_archclean	77
Ur_ZC_mul	1392288
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1392291
ZV_mul	7283
_nfnewprec	57727
act_arch	2057277
add	2250115
addRe_modIm	6905438
add_cyclotomic_units	64098
add_principal_part	32173
add_rel	2426590
add_rel_i	2910046
add_to_fact	2845288
already_known	2905910
assign_subFB	67041
automorphism_matrices	64084
automorphism_perms	64021
bad_check	96243
bad_subFB	307700
ballvol	66272
be_honest	7
bnf_build_cheapfu	285479
bnf_build_cycgen	26724
bnf_build_matalpha	20
bnf_build_units	50738
bnf_compactfu	37422
bnf_compactfu_mat	70
bnf_get_B	2784597
bnf_get_C	2819171
bnf_get_GD	276769
bnf_get_Ur	1392288
bnf_get_W	1397266
bnf_get_ga	271813
bnf_get_vbase	1392373
bnf_has_fu	285766
bnfinit0	2632
bnfinit_FP_worker	0
bnfisprincipal0	1841072
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65226
cache_prime_dec	921257
can_factor	18220407
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64022
clean_cols	93038
cleanarch	3070725
cleanarchunit	133895
compute_R	96305
compute_invres	64021
compute_multiple_of_R	121774
compute_multiple_of_R_pivot	576301
dbg_newrel	0
delete_FB	66275
delete_cache	64098
diagact_arch	64119
divide_p	5474485
divide_p_elt	2404
divide_p_id	185394
divide_p_quo	5286690
dump_gen	1228025
err_units	0
expand	0
expandext	32194
expbitprec	2840312
extract_full_lattice	64028
fact_ok	1228575
fact_update	1978538
factorgen	16808191
fixarch	1306920
free_GRHcheck	134687
genback	28777
get_archclean	40
get_clg2	64119
get_embs	122459
get_fs	7512102
get_log_embed	725522
get_norm_fact	1231461
get_norm_fact_primes	69
get_pr_lists	1392354
get_random_ideal	55679
get_regulator	48894
get_y	69
getfu	64019
i2print	0
idealHNF_mulred	3508
idealmulpowprime2	4488
init_GRHcheck	134684
init_famat	65770
init_red_mod_units	1107798
init_rel	64098
inv_fact	0
isprincipal	174534
isprincipalall	1408671
isprincipalarch	1237069
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24915
matbotid	62495
matbotidembs	55510
matenlarge	55510
modIm	204627
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	197126
nfcyclotomicunits	64098
nfsign_from_logarch	162325
nfsign_fu	241148
nfsign_tu	239978
nfsign_units	35
not_given	396
nthideal	64022
pack_FB	0
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122498
prec_arch	1410480
primeneeded	64022
reallocate	64098
recover_partFB	1392354
red_mod_units	1107799
rel_embed	1016434
rnd_rel	55679
rnd_rel_par	0
rnd_rel_seq	55679
set_fact	2253797
set_rel_alpha	947788
signunits	7
small_norm	66743
small_norm_par	0
small_norm_prec	64020
small_norm_seq	66744
split_ideal	1392290
step	28184677
store	9210311
subFB_change	26444
subFBgen	66271
tailres	1129648
tailresback	2259279
trim_list	122498
triv_gen	464660
try_elt	1704
unpack_FB	0
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16