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 30482-15ec328664) Lines: 2205 2405 91.7 %
Date: 2025-09-06 09:24:15 Functions: 156 167 93.4 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
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
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 1664
divide_p_elt 2374
bnfinit0 2625
Vbase_to_FB 3349
pr_index 3349
idealHNF_mulred 3511
needed_bitprec 3849
idealmulpowprime2 4488
makecycgen 4956
ZV_mul 7283
pr_orbit_fill 11865
makeunits 24908
subFB_change 26398
bnf_build_cycgen 26725
genback 28777
add_principal_part 32172
expandext 32193
isprincipalfact 32193
bnf_compactfu 37415
RgM_expbitprec 48797
get_regulator 48894
bnf_build_units 50731
matbotidembs 55457
matenlarge 55457
rnd_rel 55606
get_random_ideal 55607
_nfnewprec 57727
matbotid 62493
Buchall 62603
small_norm_prec 64013
getfu 64014
automorphism_perms 64015
class_group_gen 64015
compute_invres 64015
nthideal 64015
primeneeded 64015
extract_full_lattice 64021
automorphism_matrices 64075
add_cyclotomic_units 64089
delete_cache 64089
init_rel 64089
nfcyclotomicunits 64089
reallocate 64089
diagact_arch 64112
get_clg2 64112
buchall_end 65219
Buchall_param 65229
init_famat 65763
FB_aut_perm 66265
FBgen 66265
ballvol 66266
delete_FB 66266
subFBgen 66266
small_norm 66738
assign_subFB 67040
clean_cols 93028
bad_check 96171
compute_R 96231
compute_multiple_of_R 121689
get_embs 122382
pre_allocate 122421
trim_list 122421
cleanarchunit 133888
free_GRHcheck 134680
init_GRHcheck 134680
nfsign_from_logarch 162323
isprincipal 174534
divide_p_id 185367
nf_cxlog_normalize 194924
modIm 204631
nfsign_tu 239989
nfsign_fu 241161
Fincke_Pohst_bound 266132
Fincke_Pohst_ideal 266134
bnf_get_ga 271812
bnf_get_GD 276769
bnf_build_cheapfu 285482
bnf_has_fu 285761
bad_subFB 307581
triv_gen 464583
GRHchk 496358
compute_multiple_of_R_pivot 577271
get_log_embed 725402
cache_prime_dec 921162
set_rel_alpha 947753
rel_embed 1016326
init_red_mod_units 1107798
red_mod_units 1107799
tailres 1129528
dump_gen 1225896
fact_ok 1226447
get_norm_fact 1229330
RgC_expbitprec 1234945
isprincipalarch 1234946
SPLIT_i 1250409
fixarch 1304800
Ur_ZC_mul 1390160
bnf_get_Ur 1390160
ZV_divrem 1390161
split_ideal 1390161
get_pr_lists 1390225
recover_partFB 1390225
bnf_get_vbase 1390244
bnf_get_W 1395137
isprincipalall 1406544
SPLIT 1406571
prec_arch 1408353
GRHok 1532893
bnfisprincipal0 1838870
fact_update 1978454
act_arch 2055136
add 2247977
set_fact 2253628
tailresback 2259046
add_rel 2426408
bnf_get_B 2780340
bnf_get_C 2814916
expbitprec 2838183
add_to_fact 2845153
already_known 2905722
add_rel_i 2909857
cleanarch 3066367
divide_p_quo 5286598
divide_p 5474334
addRe_modIm 6901132
get_fs 7512298
store 9209973
factorgen 16806411
can_factor 18216463
step 28185322

Generated by: LCOV version 1.16