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 30550-07450a7a86) Lines: 2215 2530 87.5 % Date: 2025-11-19 09:22:25 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	1741
divide_p_elt	2450
bnfinit0	2632
Vbase_to_FB	3349
pr_index	3349
idealHNF_mulred	3506
needed_bitprec	3849
idealmulpowprime2	4488
makecycgen	4956
ZV_mul	7283
pr_orbit_fill	11865
makeunits	24915
subFB_change	26459
bnf_build_cycgen	26726
genback	28777
add_principal_part	32173
expandext	32194
isprincipalfact	32194
bnf_compactfu	37422
RgM_expbitprec	48797
get_regulator	48894
bnf_build_units	50738
matbotidembs	55532
matenlarge	55533
get_random_ideal	55689
rnd_rel	55689
rnd_rel_seq	55689
_nfnewprec	57727
matbotid	62496
Buchall	62603
small_norm_prec	64019
class_group_gen	64021
automorphism_perms	64022
compute_invres	64022
getfu	64022
nthideal	64022
primeneeded	64022
extract_full_lattice	64029
automorphism_matrices	64085
add_cyclotomic_units	64100
delete_cache	64100
init_rel	64100
nfcyclotomicunits	64100
reallocate	64100
diagact_arch	64119
get_clg2	64119
buchall_end	65226
Buchall_param	65234
init_famat	65770
FBgen	66276
FB_aut_perm	66277
ballvol	66277
delete_FB	66277
subFBgen	66277
small_norm	66754
small_norm_seq	66754
assign_subFB	67043
clean_cols	93093
bad_check	96221
compute_R	96283
compute_multiple_of_R	121793
get_embs	122483
pre_allocate	122522
trim_list	122522
cleanarchunit	133894
init_GRHcheck	134685
free_GRHcheck	134686
nfsign_from_logarch	162327
isprincipal	174534
divide_p_id	185393
nf_cxlog_normalize	197126
modIm	204631
nfsign_tu	239985
nfsign_fu	241162
Fincke_Pohst_bound	266226
Fincke_Pohst_ideal	266231
Fincke_Pohst_ideal_both	266231
bnf_get_ga	271812
bnf_get_GD	276768
bnf_build_cheapfu	285474
bnf_has_fu	285761
bad_subFB	307730
triv_gen	464660
GRHchk	496402
compute_multiple_of_R_pivot	576316
get_log_embed	725585
cache_prime_dec	921256
set_rel_alpha	947829
rel_embed	1016537
init_red_mod_units	1107799
red_mod_units	1107799
tailres	1129670
dump_gen	1228026
fact_ok	1228574
get_norm_fact	1231461
isprincipalarch	1237071
RgC_expbitprec	1237073
SPLIT_i	1252512
fixarch	1306930
split_ideal	1392287
Ur_ZC_mul	1392289
bnf_get_Ur	1392289
ZV_divrem	1392290
get_pr_lists	1392351
recover_partFB	1392351
bnf_get_vbase	1392370
bnf_get_W	1397263
isprincipalall	1408672
SPLIT	1408699
prec_arch	1410481
GRHok	1532913
bnfisprincipal0	1841075
fact_update	1978741
act_arch	2057271
add	2250107
set_fact	2253982
tailresback	2259327
add_rel	2426791
bnf_get_B	2784596
bnf_get_C	2819171
expbitprec	2840310
add_to_fact	2845450
already_known	2906156
add_rel_i	2910302
cleanarch	3070741
divide_p_quo	5286915
divide_p	5474756
addRe_modIm	6905458
get_fs	7512230
store	9210757
factorgen	16808830
can_factor	18221101
step	28187274

Generated by: LCOV version 1.16