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 - lll.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30371-bd27ad7662) Lines: 1335 1641 81.4 %
Date: 2025-07-06 09:22:54 Functions: 125 130 96.2 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
Babai 0
RgM_flop 0
dbg_flatter 0
dbg_flattergram 0
fplll 0
matkerint0 28
lllgramkerim 35
lllkerim 35
kerint 42
lllgen 42
lllgramgen 42
lllgramkerimgen 42
lllkerimgen 42
qflllgram 63
kerint0 70
incrementalGSgen 168
lllallgen 168
lllgramallgen 168
lllint 183
REDgen 196
do_SWAPgen 196
qflllgram0 245
qflll0 301
pslg 504
ZM_flattergram 961
ZM_flattergram_rank 961
gramschmidt_upper 1336
RgM_Cholesky_dynprec 2967
flattergram_i 2967
ZM_to_RM 4244
fplll_heuristic 4244
gc_lll 4833
lllgram 9089
truncexpo 12138
ZC_to_RC 15945
dpeM_diagonal_shallow 20287
RgM_flip 34918
lllgramint 36439
lllall 36699
get_gaussred 44553
RgM_is_square_mat 45828
dpetor 94271
setG2_heuristic 187610
realsqrdotproduct 197413
setG_heuristic 205626
dpe_negz 244449
submulzu2n 262549
addmulzu2n 271563
Babai_heuristic 288770
mulshift 318942
dpe_addmuluz 342913
absrsmall2 401466
dpe_submuluz 412447
rotateG 443280
ZM_is_knapsack 606516
ZM_flatter_rank 623998
fplll_flatter 624959
ZM_flatter 626012
dperotate 652462
addmuliu642n 671548
u64toineg 671548
submuliu642n 687471
absrsmall 696466
lll_trivial 771025
dpe_muluz 799911
get_gramschmidt 1097880
realdotproduct 1183370
ZM_is_lower 1204048
lll 1243282
drop 1345284
potential 1345285
flat 1345286
sizered 1345286
affii_or_copy_gc 1390589
dpe_abssmall 1390593
submulshift 1507243
fplll_dpe 1602662
dpe_addz 1943191
vectail_inplace 2089688
fplll_fast 2103210
lll_finish 2163906
dbldotsquare 2480247
gramschmidt_dynprec 2690568
affdbldpe 3205322
cget_dpemat 3205325
mpabscmp 4091942
addmuliu2n 4106917
submuliu2n 4201074
ZM_is_upper 4231931
addmulziu 4580873
Babai_dpe 4653254
GS_extraprec 4723417
condition_bound 4723417
ZM2_lll_norms 4840147
gsisinv 5191049
dpe_cmp 5261477
dpe_cmpmul 5261477
lllfp 5365955
spread 5848480
submulziu 5923594
ZM_lll_norms 7128672
nbits2prec64 7483458
cget_dblmat 8412828
addmuliu64_inplace 9581364
submuliu64_inplace 9632106
pari_rint 10795007
rotateG_fast 11545884
update_alpha 11989301
cget_dpevec 13289452
dpe_divz 14073834
dpe_abscmp 14514312
setG2_fast 17026973
addzi 17783994
subzi 18525392
u64toi 19900941
affidpe 20747018
setG_fast 22654838
set_line 24924649
affdpe 25730022
Babai_fast 30200147
rotate 31929939
dblrotate 34637659
cget_dblvec 34972803
dpe_normalize 48105846
dpe_submulz 51700598
dpe_subz 53731781
dpe_mulz 56961951
dpe_normalize0 108554441
dbldotproduct 118224432
itodbl_exp 162627834

Generated by: LCOV version 1.16