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 30401-87099e65a6) Lines: 1335 1641 81.4 %
Date: 2025-07-18 09:23:12 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 244421
submulzu2n 262549
addmulzu2n 271563
Babai_heuristic 288770
mulshift 318942
dpe_addmuluz 342913
absrsmall2 401466
dpe_submuluz 412447
rotateG 443280
ZM_is_knapsack 606420
ZM_flatter_rank 623985
fplll_flatter 624946
ZM_flatter 625999
dperotate 652462
addmuliu642n 671548
u64toineg 671548
submuliu642n 687471
absrsmall 696466
lll_trivial 771018
dpe_muluz 799911
get_gramschmidt 1097857
realdotproduct 1183370
ZM_is_lower 1204025
lll 1243282
potential 1345196
drop 1345197
flat 1345197
sizered 1345197
affii_or_copy_gc 1390573
dpe_abssmall 1390588
submulshift 1507243
fplll_dpe 1602641
dpe_addz 1943190
vectail_inplace 2089569
fplll_fast 2103091
lll_finish 2163787
dbldotsquare 2480063
gramschmidt_dynprec 2690389
cget_dpemat 3205276
affdbldpe 3205277
mpabscmp 4091550
addmuliu2n 4107270
submuliu2n 4201119
ZM_is_upper 4231731
addmulziu 4580822
Babai_dpe 4653170
GS_extraprec 4723192
condition_bound 4723192
ZM2_lll_norms 4840033
gsisinv 5190811
dpe_cmpmul 5261402
dpe_cmp 5261404
lllfp 5365685
spread 5848144
submulziu 5923566
ZM_lll_norms 7128419
nbits2prec64 7483009
cget_dblmat 8412345
addmuliu64_inplace 9581364
submuliu64_inplace 9632106
pari_rint 10794230
rotateG_fast 11545065
update_alpha 11988479
cget_dpevec 13289116
dpe_divz 14073614
dpe_abscmp 14514111
setG2_fast 17025833
addzi 17783519
subzi 18524811
u64toi 19900941
affidpe 20746634
setG_fast 22653209
set_line 24922784
affdpe 25729715
Babai_fast 30198228
rotate 31927455
dblrotate 34635125
cget_dblvec 34970372
dpe_normalize 48105053
dpe_submulz 51699780
dpe_subz 53730909
dpe_mulz 56960962
dpe_normalize0 108552253
dbldotproduct 118217551
itodbl_exp 162610935

Generated by: LCOV version 1.16