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 30540-a74e376001) Lines: 2215 2530 87.5 % Date: 2025-11-09 09:22:50 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	1204
FlxqX_chinese_unit	1379
try_elt	1685
divide_p_elt	2394
bnfinit0	2632
Vbase_to_FB	3349
pr_index	3349
idealHNF_mulred	3509
needed_bitprec	3849
idealmulpowprime2	4488
makecycgen	4956
ZV_mul	7283
pr_orbit_fill	11865
makeunits	24914
subFB_change	26418
bnf_build_cycgen	26726
genback	28777
add_principal_part	32172
expandext	32191
isprincipalfact	32191
bnf_compactfu	37422
RgM_expbitprec	48797
get_regulator	48893
bnf_build_units	50737
matbotidembs	55454
matenlarge	55454
rnd_rel	55621
get_random_ideal	55622
rnd_rel_seq	55622
_nfnewprec	57728
matbotid	62494
Buchall	62598
small_norm_prec	64018
automorphism_perms	64021
primeneeded	64021
class_group_gen	64022
compute_invres	64022
getfu	64022
nthideal	64022
extract_full_lattice	64028
automorphism_matrices	64084
add_cyclotomic_units	64097
delete_cache	64097
init_rel	64097
nfcyclotomicunits	64097
reallocate	64097
diagact_arch	64119
get_clg2	64119
buchall_end	65226
Buchall_param	65228
init_famat	65770
FB_aut_perm	66274
FBgen	66274
ballvol	66274
delete_FB	66274
subFBgen	66274
small_norm	66743
small_norm_seq	66743
assign_subFB	67040
clean_cols	93033
bad_check	96169
compute_R	96229
compute_multiple_of_R	121710
get_embs	122401
pre_allocate	122439
trim_list	122439
cleanarchunit	133896
free_GRHcheck	134677
init_GRHcheck	134683
nfsign_from_logarch	162323
isprincipal	174534
divide_p_id	185395
nf_cxlog_normalize	197126
modIm	204626
nfsign_tu	239987
nfsign_fu	241160
Fincke_Pohst_bound	266153
Fincke_Pohst_ideal	266154
Fincke_Pohst_ideal_both	266154
bnf_get_ga	271813
bnf_get_GD	276769
bnf_build_cheapfu	285482
bnf_has_fu	285769
bad_subFB	307623
triv_gen	464660
GRHchk	496406
compute_multiple_of_R_pivot	575912
get_log_embed	725459
cache_prime_dec	921263
set_rel_alpha	947667
rel_embed	1016298
init_red_mod_units	1107799
red_mod_units	1107799
tailres	1129651
dump_gen	1228022
fact_ok	1228574
get_norm_fact	1231456
isprincipalarch	1237073
RgC_expbitprec	1237074
SPLIT_i	1252509
fixarch	1306931
split_ideal	1392284
Ur_ZC_mul	1392287
bnf_get_Ur	1392287
ZV_divrem	1392288
recover_partFB	1392348
get_pr_lists	1392349
bnf_get_vbase	1392367
bnf_get_W	1397260
isprincipalall	1408672
SPLIT	1408694
prec_arch	1410482
GRHok	1532898
bnfisprincipal0	1841073
fact_update	1978575
act_arch	2057284
add	2250122
set_fact	2253708
tailresback	2259297
add_rel	2426515
bnf_get_B	2784591
bnf_get_C	2819173
expbitprec	2840312
add_to_fact	2845218
already_known	2905754
add_rel_i	2909899
cleanarch	3070732
divide_p_quo	5286668
divide_p	5474458
addRe_modIm	6905441
get_fs	7512457
store	9210229
factorgen	16808260
can_factor	18220493
step	28184885

Generated by: LCOV version 1.16