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 30582-6e9af8ee1d) Lines: 2215 2530 87.5 % Date: 2025-12-20 09:23:49 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	2350
bnfinit0	2639
Vbase_to_FB	3461
pr_index	3461
idealHNF_mulred	3537
needed_bitprec	3857
idealmulpowprime2	4663
makecycgen	4956
ZV_mul	7325
pr_orbit_fill	11865
makeunits	24915
subFB_change	26411
bnf_build_cycgen	26726
genback	28798
add_principal_part	32173
expandext	32194
isprincipalfact	32194
bnf_compactfu	37422
RgM_expbitprec	48797
get_regulator	48894
bnf_build_units	50738
matbotidembs	55528
matenlarge	55529
get_random_ideal	55646
rnd_rel_seq	55647
rnd_rel	55648
_nfnewprec	57733
matbotid	62499
Buchall	62581
small_norm_prec	64008
getfu	64020
automorphism_perms	64021
compute_invres	64021
nthideal	64021
class_group_gen	64022
primeneeded	64022
extract_full_lattice	64029
automorphism_matrices	64082
add_cyclotomic_units	64094
nfcyclotomicunits	64094
delete_cache	64095
init_rel	64095
reallocate	64095
diagact_arch	64119
get_clg2	64119
Buchall_param	65220
buchall_end	65226
init_famat	65826
ballvol	66269
FBgen	66270
subFBgen	66270
FB_aut_perm	66272
delete_FB	66272
small_norm	66778
small_norm_seq	66778
assign_subFB	67045
clean_cols	93057
bad_check	96249
compute_R	96310
compute_multiple_of_R	121765
get_embs	122459
pre_allocate	122498
trim_list	122498
cleanarchunit	133892
init_GRHcheck	134702
free_GRHcheck	134706
nfsign_from_logarch	162321
isprincipal	174786
divide_p_id	185501
nf_cxlog_normalize	197126
modIm	204629
nfsign_tu	239984
nfsign_fu	241164
Fincke_Pohst_bound	266651
Fincke_Pohst_ideal	266655
Fincke_Pohst_ideal_both	266655
bnf_get_ga	271840
bnf_get_GD	276797
bnf_build_cheapfu	285497
bnf_has_fu	285784
bad_subFB	307648
triv_gen	464660
GRHchk	496528
compute_multiple_of_R_pivot	577408
get_log_embed	726259
cache_prime_dec	921455
set_rel_alpha	948923
rel_embed	1017417
red_mod_units	1107826
init_red_mod_units	1107827
tailres	1129653
dump_gen	1228044
fact_ok	1228559
get_norm_fact	1231485
isprincipalarch	1237097
RgC_expbitprec	1237103
SPLIT_i	1252847
fixarch	1306958
split_ideal	1392568
Ur_ZC_mul	1392570
ZV_divrem	1392570
bnf_get_Ur	1392570
get_pr_lists	1392632
recover_partFB	1392632
bnf_get_vbase	1392651
bnf_get_W	1397544
isprincipalall	1408952
SPLIT	1408978
prec_arch	1410754
GRHok	1533355
bnfisprincipal0	1841356
fact_update	2052275
act_arch	2057424
add	2250563
tailresback	2259297
set_fact	2315683
add_rel	2488755
bnf_get_B	2785155
bnf_get_C	2819726
expbitprec	2840369
add_to_fact	2920044
already_known	2969424
add_rel_i	2973563
cleanarch	3071624
divide_p_quo	5436398
divide_p	5624242
addRe_modIm	6907060
get_fs	7514254
store	9462492
factorgen	16943413
can_factor	18355960
step	28417690

Generated by: LCOV version 1.16