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:

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 30367-364c17a628) Lines: 2197 2397 91.7 %
Date: 2025-07-03 09:21:30 Functions: 155 166 93.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Buchall 62605
Buchall_deg1 1204
Buchall_param 65224
FB_aut_perm 66259
FBgen 66258
Fincke_Pohst_bound 265697
Fincke_Pohst_ideal 265700
FlxqX_chinese_unit 1379
GRHchk 496210
GRHok 1532686
RgC_expbitprec 1234926
RgM_expbitprec 48789
RgV_is1 105
SPLIT 1406548
SPLIT_i 1250413
SUnits_archclean 77
Ur_ZC_mul 1390139
Vbase_to_FB 3349
ZM_remove_unused 164
ZV_divrem 1390140
ZV_mul 7283
_nfnewprec 57719
act_arch 2055039
add 2247878
addRe_modIm 6896365
add_cyclotomic_units 64082
add_principal_part 32152
add_rel 2422558
add_rel_i 2905996
add_to_fact 2841596
already_known 2901876
assign_subFB 67029
automorphism_matrices 64071
automorphism_perms 64008
bad_check 96185
bad_subFB 307556
ballvol 66258
be_honest 7
bnf_build_cheapfu 285479
bnf_build_cycgen 26726
bnf_build_matalpha 20
bnf_build_units 50731
bnf_compactfu 37415
bnf_compactfu_mat 70
bnf_get_B 2780298
bnf_get_C 2814830
bnf_get_GD 276751
bnf_get_Ur 1390139
bnf_get_W 1395113
bnf_get_ga 271795
bnf_get_vbase 1390220
bnf_has_fu 285758
bnfinit0 2618
bnfisprincipal0 1838848
bnfnewprec 7
bnfnewprec_shallow 97
bnftestprimes 63
bnrnewprec 7
bnrnewprec_shallow 0
buchall_end 65212
cache_prime_dec 920989
can_factor 18122140
chinese_unit 94
chinese_unit_slice 274
chinese_unit_worker 274
class_group_gen 64008
clean_cols 93053
cleanarch 3064781
cleanarchunit 133867
compute_R 96248
compute_invres 64007
compute_multiple_of_R 121716
compute_multiple_of_R_pivot 577116
dbg_newrel 0
delete_FB 66259
delete_cache 64082
diagact_arch 64105
divide_p 5458850
divide_p_elt 2365
divide_p_id 185346
divide_p_quo 5271145
dump_gen 1225896
err_units 0
expand 0
expandext 32173
expbitprec 2838083
extract_full_lattice 64013
fact_ok 1226446
fact_update 1978579
factorgen 16712037
fixarch 1304763
free_GRHcheck 134658
genback 28770
get_archclean 40
get_clg2 64105
get_embs 122404
get_fs 7506843
get_log_embed 723854
get_norm_fact 1229311
get_norm_fact_primes 69
get_pr_lists 1390202
get_random_ideal 55639
get_regulator 48887
get_y 69
getfu 64006
i2print 0
idealHNF_mulred 3511
idealmulpowprime2 4488
init_GRHcheck 134654
init_famat 65756
init_red_mod_units 1107780
init_rel 64081
inv_fact 0
isprincipal 174513
isprincipalall 1406502
isprincipalarch 1234926
isprincipalfact 32173
isprincipalfact_or_fail 0
isprincipalforce 0
isprincipalgen 0
isprincipalgenforce 0
log2Mbound 94
log2fubound 94
makecycgen 4956
makematal 20
makeunits 24908
matbotid 62486
matbotidembs 55486
matenlarge 55486
modIm 204590
myprecdbl 73
needed_bitprec 3831
nf_cxlog_normalize 194924
nfcyclotomicunits 64082
nfsign_from_logarch 162326
nfsign_fu 241149
nfsign_tu 239980
nfsign_units 35
not_given 389
nthideal 64008
pr_index 3349
pr_orbit_fill 11865
pre_allocate 122443
prec_arch 1408310
primeneeded 64008
reallocate 64081
recover_partFB 1390202
red_mod_units 1107780
rel_embed 1014782
rnd_rel 55639
set_fact 2250079
set_rel_alpha 946259
signunits 7
small_norm 66730
split_ideal 1390137
step 28026463
store 9190986
subFB_change 26409
subFBgen 66258
tailres 1129381
tailresback 2258755
trim_list 122443
triv_gen 464583
try_elt 1670
vec_chinese_units 94
wr_rel 0

Generated by: LCOV version 1.16