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 30556-bb9f5f8fc8) Lines: 2215 2530 87.5 % Date: 2025-11-25 09:20:50 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	1162
FlxqX_chinese_unit	1379
try_elt	1610
divide_p_elt	2341
bnfinit0	2632
Vbase_to_FB	3349
pr_index	3349
idealHNF_mulred	3500
needed_bitprec	3849
idealmulpowprime2	4488
makecycgen	4928
ZV_mul	7283
pr_orbit_fill	11865
makeunits	24915
subFB_change	25194
bnf_build_cycgen	26698
genback	28343
add_principal_part	32173
expandext	32194
isprincipalfact	32194
bnf_compactfu	37330
RgM_expbitprec	48272
get_regulator	48369
bnf_build_units	50738
get_random_ideal	53515
rnd_rel	53515
rnd_rel_seq	53515
matbotidembs	54160
matenlarge	54160
_nfnewprec	56742
matbotid	61503
Buchall	61562
getfu	63033
class_group_gen	63034
automorphism_perms	63035
compute_invres	63035
nthideal	63035
primeneeded	63035
small_norm_prec	63035
extract_full_lattice	63042
automorphism_matrices	63098
add_cyclotomic_units	63106
delete_cache	63106
init_rel	63106
nfcyclotomicunits	63106
reallocate	63106
diagact_arch	63132
get_clg2	63132
Buchall_param	64195
buchall_end	64197
init_famat	64783
ballvol	65196
FBgen	65197
subFBgen	65197
delete_FB	65198
FB_aut_perm	65199
assign_subFB	65904
small_norm	66556
small_norm_seq	66556
clean_cols	91665
bad_check	94106
compute_R	94169
compute_multiple_of_R	119446
get_embs	120102
pre_allocate	120142
trim_list	120142
cleanarchunit	132170
init_GRHcheck	133699
free_GRHcheck	133700
nfsign_from_logarch	162273
isprincipal	174513
divide_p_id	185076
nf_cxlog_normalize	197126
modIm	202278
nfsign_tu	238881
nfsign_fu	240028
Fincke_Pohst_bound	262299
Fincke_Pohst_ideal	262304
Fincke_Pohst_ideal_both	262304
bnf_get_ga	270133
bnf_get_GD	275061
bnf_build_cheapfu	284285
bnf_has_fu	284572
bad_subFB	301990
triv_gen	464562
GRHchk	489899
compute_multiple_of_R_pivot	566036
get_log_embed	718726
cache_prime_dec	908397
set_rel_alpha	935011
rel_embed	1003485
init_red_mod_units	1107554
red_mod_units	1107554
tailres	1112511
dump_gen	1226128
fact_ok	1226649
get_norm_fact	1229565
RgC_expbitprec	1235144
isprincipalarch	1235149
SPLIT_i	1250897
fixarch	1304265
split_ideal	1390370
Ur_ZC_mul	1390374
ZV_divrem	1390374
bnf_get_Ur	1390374
get_pr_lists	1390433
recover_partFB	1390433
bnf_get_vbase	1390453
bnf_get_W	1395317
isprincipalall	1406754
SPLIT	1406779
prec_arch	1408521
GRHok	1526404
bnfisprincipal0	1839060
fact_update	1975105
act_arch	2047739
tailresback	2225021
set_fact	2234320
add	2242882
add_rel	2404547
bnf_get_B	2780763
bnf_get_C	2815293
add_to_fact	2825616
expbitprec	2835322
already_known	2876192
add_rel_i	2880178
cleanarch	3062780
divide_p_quo	5272999
divide_p	5460410
addRe_modIm	6890576
get_fs	7419008
store	9177727
factorgen	16782153
can_factor	18192424
step	28102912

Generated by: LCOV version 1.16