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 30446-bebd557ed6) Lines: 2205 2405 91.7 % Date: 2025-08-06 09:23:53 Functions: 156 167 93.4 % Legend: Lines: hit not hit

Function Name	Hit count
Buchall	62604
Buchall_deg1	1204
Buchall_param	65228
FB_aut_perm	66265
FBgen	66265
Fincke_Pohst_bound	266123
Fincke_Pohst_ideal	266122
FlxqX_chinese_unit	1379
GRHchk	496362
GRHok	1532869
RgC_expbitprec	1234944
RgM_expbitprec	48797
RgV_is1	105
SPLIT	1406569
SPLIT_i	1250410
SUnits_archclean	77
Ur_ZC_mul	1390162
Vbase_to_FB	3349
ZM_remove_unused	164
ZV_divrem	1390161
ZV_mul	7283
_nfnewprec	57725
act_arch	2055136
add	2247990
addRe_modIm	6901093
add_cyclotomic_units	64088
add_principal_part	32173
add_rel	2426362
add_rel_i	2909735
add_to_fact	2845125
already_known	2905595
assign_subFB	67019
automorphism_matrices	64077
automorphism_perms	64015
bad_check	96170
bad_subFB	307593
ballvol	66264
be_honest	7
bnf_build_cheapfu	285469
bnf_build_cycgen	26724
bnf_build_matalpha	20
bnf_build_units	50731
bnf_compactfu	37415
bnf_compactfu_mat	70
bnf_get_B	2780336
bnf_get_C	2814916
bnf_get_GD	276769
bnf_get_Ur	1390162
bnf_get_W	1395135
bnf_get_ga	271813
bnf_get_vbase	1390242
bnf_has_fu	285749
bnfinit0	2625
bnfisprincipal0	1838869
bnfnewprec	7
bnfnewprec_shallow	97
bnftestprimes	63
bnrnewprec	7
bnrnewprec_shallow	0
buchall_end	65219
cache_prime_dec	921169
can_factor	18216005
chinese_unit	94
chinese_unit_slice	274
chinese_unit_worker	274
class_group_gen	64015
clean_cols	93021
cleanarch	3066363
cleanarchunit	133887
compute_R	96233
compute_invres	64014
compute_multiple_of_R	121685
compute_multiple_of_R_pivot	576754
dbg_newrel	0
delete_FB	66265
delete_cache	64088
diagact_arch	64109
divide_p	5474288
divide_p_elt	2347
divide_p_id	185366
divide_p_quo	5286577
dump_gen	1225898
err_units	0
expand	0
expandext	32194
expbitprec	2838181
extract_full_lattice	64021
fact_ok	1226445
fact_update	1978548
factorgen	16805901
fixarch	1304800
free_GRHcheck	134680
genback	28777
get_archclean	40
get_clg2	64109
get_embs	122370
get_fs	7512216
get_log_embed	725382
get_norm_fact	1229332
get_norm_fact_primes	69
get_pr_lists	1390226
get_random_ideal	55604
get_regulator	48894
get_y	69
getfu	64015
i2print	0
idealHNF_mulred	3512
idealmulpowprime2	4488
init_GRHcheck	134677
init_famat	65763
init_red_mod_units	1107799
init_rel	64088
inv_fact	0
isprincipal	174534
isprincipalall	1406543
isprincipalarch	1234945
isprincipalfact	32194
isprincipalfact_or_fail	0
isprincipalforce	0
isprincipalgen	0
isprincipalgenforce	0
log2Mbound	94
log2fubound	94
makecycgen	4956
makematal	20
makeunits	24908
matbotid	62492
matbotidembs	55446
matenlarge	55446
modIm	204635
myprecdbl	73
needed_bitprec	3849
nf_cxlog_normalize	194924
nfcyclotomicunits	64088
nfsign_from_logarch	162317
nfsign_fu	241158
nfsign_tu	239976
nfsign_units	35
not_given	396
nthideal	64014
pr_index	3349
pr_orbit_fill	11865
pre_allocate	122408
prec_arch	1408354
primeneeded	64015
reallocate	64088
recover_partFB	1390226
red_mod_units	1107799
rel_embed	1016217
rnd_rel	55605
set_fact	2253597
set_rel_alpha	947718
signunits	7
small_norm	66732
small_norm_prec	64013
split_ideal	1390159
step	28183566
store	9209910
subFB_change	26415
subFBgen	66264
tailres	1129545
tailresback	2259088
trim_list	122408
triv_gen	464583
try_elt	1650
vec_chinese_units	94
wr_rel	0

Generated by: LCOV version 1.16