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 30552-d1d0643eee) Lines: 2215 2530 87.5 % Date: 2025-11-23 09:22:56 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	1652
divide_p_elt	2348
bnfinit0	2632
Vbase_to_FB	3349
pr_index	3349
idealHNF_mulred	3512
needed_bitprec	3849
idealmulpowprime2	4488
makecycgen	4956
ZV_mul	7283
pr_orbit_fill	11865
makeunits	24915
subFB_change	26390
bnf_build_cycgen	26726
genback	28776
add_principal_part	32173
expandext	32194
isprincipalfact	32194
bnf_compactfu	37422
RgM_expbitprec	48797
get_regulator	48894
bnf_build_units	50738
matbotidembs	55410
matenlarge	55411
get_random_ideal	55584
rnd_rel	55585
rnd_rel_seq	55585
_nfnewprec	57727
matbotid	62492
Buchall	62594
getfu	64019
small_norm_prec	64020
automorphism_perms	64021
class_group_gen	64021
nthideal	64021
primeneeded	64021
compute_invres	64022
extract_full_lattice	64028
automorphism_matrices	64084
add_cyclotomic_units	64095
delete_cache	64095
init_rel	64095
nfcyclotomicunits	64095
reallocate	64095
diagact_arch	64119
get_clg2	64119
Buchall_param	65226
buchall_end	65226
init_famat	65770
FBgen	66269
FB_aut_perm	66272
ballvol	66272
delete_FB	66272
subFBgen	66272
small_norm	66738
small_norm_seq	66738
assign_subFB	67034
clean_cols	92987
bad_check	96152
compute_R	96213
compute_multiple_of_R	121665
get_embs	122354
trim_list	122394
pre_allocate	122395
cleanarchunit	133893
free_GRHcheck	134686
init_GRHcheck	134686
nfsign_from_logarch	162323
isprincipal	174534
divide_p_id	185394
nf_cxlog_normalize	197126
modIm	204634
nfsign_tu	239965
nfsign_fu	241152
Fincke_Pohst_bound	266100
Fincke_Pohst_ideal	266100
Fincke_Pohst_ideal_both	266100
bnf_get_ga	271813
bnf_get_GD	276769
bnf_build_cheapfu	285471
bnf_has_fu	285758
bad_subFB	307578
triv_gen	464660
GRHchk	496406
compute_multiple_of_R_pivot	577062
get_log_embed	725377
cache_prime_dec	921254
set_rel_alpha	947656
rel_embed	1016228
init_red_mod_units	1107797
red_mod_units	1107799
tailres	1129639
dump_gen	1228026
fact_ok	1228575
get_norm_fact	1231462
RgC_expbitprec	1237071
isprincipalarch	1237074
SPLIT_i	1252511
fixarch	1306925
split_ideal	1392288
Ur_ZC_mul	1392290
bnf_get_Ur	1392290
ZV_divrem	1392291
get_pr_lists	1392350
recover_partFB	1392350
bnf_get_vbase	1392371
bnf_get_W	1397264
isprincipalall	1408672
SPLIT	1408698
prec_arch	1410482
GRHok	1532904
bnfisprincipal0	1841072
fact_update	1978401
act_arch	2057285
add	2250137
set_fact	2253567
tailresback	2259270
add_rel	2426330
bnf_get_B	2784595
bnf_get_C	2819172
expbitprec	2840307
add_to_fact	2845097
already_known	2905600
add_rel_i	2909730
cleanarch	3070730
divide_p_quo	5286581
divide_p	5474316
addRe_modIm	6905431
get_fs	7511930
store	9209891
factorgen	16807752
can_factor	18219972
step	28183126

Generated by: LCOV version 1.16