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 30535-d1c72762fc) Lines: 2215 2530 87.5 % Date: 2025-10-26 09:21:42 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	1686
divide_p_elt	2390
bnfinit0	2632
Vbase_to_FB	3349
pr_index	3349
idealHNF_mulred	3510
needed_bitprec	3849
idealmulpowprime2	4488
makecycgen	4956
ZV_mul	7283
pr_orbit_fill	11865
makeunits	24915
subFB_change	26415
bnf_build_cycgen	26726
genback	28777
add_principal_part	32173
expandext	32194
isprincipalfact	32194
bnf_compactfu	37422
RgM_expbitprec	48797
get_regulator	48894
bnf_build_units	50738
matbotidembs	55435
matenlarge	55435
get_random_ideal	55605
rnd_rel	55605
rnd_rel_seq	55605
_nfnewprec	57730
matbotid	62494
Buchall	62597
small_norm_prec	64019
primeneeded	64021
automorphism_perms	64022
class_group_gen	64022
compute_invres	64022
getfu	64022
nthideal	64022
extract_full_lattice	64028
automorphism_matrices	64085
nfcyclotomicunits	64096
add_cyclotomic_units	64097
delete_cache	64097
init_rel	64097
reallocate	64097
diagact_arch	64119
get_clg2	64119
buchall_end	65226
Buchall_param	65230
init_famat	65770
FBgen	66273
FB_aut_perm	66274
ballvol	66274
delete_FB	66274
subFBgen	66274
small_norm	66740
small_norm_seq	66740
assign_subFB	67033
clean_cols	93030
bad_check	96186
compute_R	96250
compute_multiple_of_R	121709
get_embs	122382
pre_allocate	122418
trim_list	122418
cleanarchunit	133896
init_GRHcheck	134684
free_GRHcheck	134685
nfsign_from_logarch	162327
isprincipal	174534
divide_p_id	185396
nf_cxlog_normalize	197126
modIm	204624
nfsign_tu	239984
nfsign_fu	241137
Fincke_Pohst_bound	266135
Fincke_Pohst_ideal	266137
Fincke_Pohst_ideal_both	266137
bnf_get_ga	271813
bnf_get_GD	276769
bnf_build_cheapfu	285474
bnf_has_fu	285761
bad_subFB	307614
triv_gen	464660
GRHchk	496408
compute_multiple_of_R_pivot	577041
get_log_embed	725448
cache_prime_dec	921260
set_rel_alpha	947716
rel_embed	1016353
red_mod_units	1107798
init_red_mod_units	1107799
tailres	1129635
dump_gen	1228025
fact_ok	1228576
get_norm_fact	1231453
isprincipalarch	1237071
RgC_expbitprec	1237073
SPLIT_i	1252511
fixarch	1306921
Ur_ZC_mul	1392289
bnf_get_Ur	1392289
ZV_divrem	1392290
split_ideal	1392291
get_pr_lists	1392354
recover_partFB	1392354
bnf_get_vbase	1392374
bnf_get_W	1397267
isprincipalall	1408672
SPLIT	1408696
prec_arch	1410482
GRHok	1532913
bnfisprincipal0	1841074
fact_update	1978540
act_arch	2057285
add	2250136
set_fact	2253699
tailresback	2259273
add_rel	2426511
bnf_get_B	2784592
bnf_get_C	2819174
expbitprec	2840311
add_to_fact	2845196
already_known	2905797
add_rel_i	2909928
cleanarch	3070734
divide_p_quo	5286711
divide_p	5474492
addRe_modIm	6905447
get_fs	7512111
store	9210155
factorgen	16808366
can_factor	18220562
step	28185460

Generated by: LCOV version 1.16