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 30569-8181146aa1) Lines: 2215 2530 87.5 % Date: 2025-12-03 09:22:05 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	1683
divide_p_elt	2389
bnfinit0	2639
Vbase_to_FB	3461
pr_index	3461
idealHNF_mulred	3536
needed_bitprec	3857
idealmulpowprime2	4663
makecycgen	4956
ZV_mul	7325
pr_orbit_fill	11865
makeunits	24915
subFB_change	26438
bnf_build_cycgen	26726
genback	28812
add_principal_part	32171
expandext	32193
isprincipalfact	32194
bnf_compactfu	37429
RgM_expbitprec	48804
get_regulator	48901
bnf_build_units	50738
matbotidembs	55524
matenlarge	55524
rnd_rel	55644
rnd_rel_seq	55644
get_random_ideal	55645
_nfnewprec	57742
matbotid	62508
Buchall	62612
small_norm_prec	64032
automorphism_perms	64035
getfu	64035
class_group_gen	64036
compute_invres	64036
nthideal	64036
primeneeded	64036
extract_full_lattice	64043
automorphism_matrices	64096
add_cyclotomic_units	64110
init_rel	64110
nfcyclotomicunits	64110
reallocate	64110
delete_cache	64111
diagact_arch	64133
get_clg2	64133
buchall_end	65240
Buchall_param	65250
init_famat	65840
FBgen	66284
ballvol	66287
subFBgen	66287
FB_aut_perm	66288
delete_FB	66288
small_norm	66805
small_norm_seq	66805
assign_subFB	67044
clean_cols	93089
bad_check	96274
compute_R	96332
compute_multiple_of_R	121794
get_embs	122485
pre_allocate	122524
trim_list	122524
cleanarchunit	133916
init_GRHcheck	134699
free_GRHcheck	134701
nfsign_from_logarch	162327
isprincipal	174793
divide_p_id	185518
nf_cxlog_normalize	197126
modIm	204646
nfsign_tu	239984
nfsign_fu	241110
Fincke_Pohst_bound	266697
Fincke_Pohst_ideal	266700
Fincke_Pohst_ideal_both	266700
bnf_get_ga	271854
bnf_get_GD	276810
bnf_build_cheapfu	285493
bnf_has_fu	285775
bad_subFB	307740
triv_gen	464660
GRHchk	496653
compute_multiple_of_R_pivot	576985
get_log_embed	726437
cache_prime_dec	921661
set_rel_alpha	949074
rel_embed	1017720
init_red_mod_units	1107841
red_mod_units	1107841
tailres	1129954
dump_gen	1228057
fact_ok	1228571
get_norm_fact	1231502
RgC_expbitprec	1237111
isprincipalarch	1237112
SPLIT_i	1252848
fixarch	1306967
split_ideal	1392586
Ur_ZC_mul	1392589
bnf_get_Ur	1392589
ZV_divrem	1392591
get_pr_lists	1392649
recover_partFB	1392649
bnf_get_vbase	1392669
bnf_get_W	1397562
isprincipalall	1408973
SPLIT	1408992
prec_arch	1410777
GRHok	1533172
bnfisprincipal0	1841374
fact_update	2052763
act_arch	2057545
add	2250646
tailresback	2259902
set_fact	2316427
add_rel	2489556
bnf_get_B	2785196
bnf_get_C	2819768
expbitprec	2840405
add_to_fact	2920793
already_known	2970488
add_rel_i	2974623
cleanarch	3071816
divide_p_quo	5437739
divide_p	5625647
addRe_modIm	6907370
get_fs	7516581
store	9465542
factorgen	16944144
can_factor	18356794
step	28418918

Generated by: LCOV version 1.16