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: 2025-12-04 09:22:12 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	1670
divide_p_elt	2368
bnfinit0	2639
Vbase_to_FB	3461
pr_index	3461
idealHNF_mulred	3538
needed_bitprec	3857
idealmulpowprime2	4663
makecycgen	4956
ZV_mul	7325
pr_orbit_fill	11865
makeunits	24915
subFB_change	26426
bnf_build_cycgen	26726
genback	28812
add_principal_part	32173
expandext	32193
isprincipalfact	32193
bnf_compactfu	37429
RgM_expbitprec	48804
get_regulator	48900
bnf_build_units	50738
matbotidembs	55538
matenlarge	55539
get_random_ideal	55656
rnd_rel	55657
rnd_rel_seq	55657
_nfnewprec	57740
matbotid	62507
Buchall	62608
automorphism_perms	64036
class_group_gen	64036
compute_invres	64036
getfu	64036
nthideal	64036
primeneeded	64036
small_norm_prec	64036
extract_full_lattice	64043
automorphism_matrices	64098
add_cyclotomic_units	64110
delete_cache	64110
init_rel	64110
nfcyclotomicunits	64110
reallocate	64110
diagact_arch	64132
get_clg2	64132
buchall_end	65240
Buchall_param	65247
init_famat	65840
FBgen	66286
FB_aut_perm	66287
ballvol	66287
delete_FB	66287
subFBgen	66287
small_norm_seq	66807
small_norm	66808
assign_subFB	67050
clean_cols	93139
bad_check	96262
compute_R	96325
compute_multiple_of_R	121814
get_embs	122498
pre_allocate	122539
trim_list	122539
cleanarchunit	133915
init_GRHcheck	134699
free_GRHcheck	134701
nfsign_from_logarch	162321
isprincipal	174793
divide_p_id	185517
nf_cxlog_normalize	197126
modIm	204648
nfsign_tu	239974
nfsign_fu	241140
Fincke_Pohst_bound	266706
Fincke_Pohst_ideal_both	266710
Fincke_Pohst_ideal	266711
bnf_get_ga	271853
bnf_get_GD	276809
bnf_build_cheapfu	285496
bnf_has_fu	285783
bad_subFB	307720
triv_gen	464660
GRHchk	496655
compute_multiple_of_R_pivot	576705
get_log_embed	726416
cache_prime_dec	921662
set_rel_alpha	949061
rel_embed	1017651
red_mod_units	1107839
init_red_mod_units	1107841
tailres	1129948
dump_gen	1228055
fact_ok	1228570
get_norm_fact	1231498
RgC_expbitprec	1237109
isprincipalarch	1237110
SPLIT_i	1252844
fixarch	1306973
split_ideal	1392585
Ur_ZC_mul	1392586
bnf_get_Ur	1392586
ZV_divrem	1392587
get_pr_lists	1392649
recover_partFB	1392649
bnf_get_vbase	1392668
bnf_get_W	1397561
isprincipalall	1408972
SPLIT	1408994
prec_arch	1410783
GRHok	1533147
bnfisprincipal0	1841373
fact_update	2052750
act_arch	2057545
add	2250643
tailresback	2259882
set_fact	2316455
add_rel	2489588
bnf_get_B	2785186
bnf_get_C	2819772
expbitprec	2840401
add_to_fact	2920839
already_known	2970470
add_rel_i	2974616
cleanarch	3071820
divide_p_quo	5437857
divide_p	5625737
addRe_modIm	6907383
get_fs	7516756
store	9465725
factorgen	16944341
can_factor	18356944
step	28418931

Generated by: LCOV version 1.16