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 30365-beea1ff998) Lines: 1335 1641 81.4 %
Date: 2025-07-02 09:21:24 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 244445
submulzu2n 262549
addmulzu2n 271563
Babai_heuristic 288770
mulshift 318942
dpe_addmuluz 342913
absrsmall2 401466
dpe_submuluz 412446
rotateG 443280
ZM_is_knapsack 606462
ZM_flatter_rank 623995
fplll_flatter 624956
ZM_flatter 626009
dperotate 652461
addmuliu642n 671548
u64toineg 671548
submuliu642n 687471
absrsmall 696466
lll_trivial 771019
dpe_muluz 799910
get_gramschmidt 1097857
realdotproduct 1183370
ZM_is_lower 1204029
lll 1243280
drop 1345281
flat 1345281
potential 1345281
sizered 1345281
affii_or_copy_gc 1390571
dpe_abssmall 1390591
submulshift 1507243
fplll_dpe 1602643
dpe_addz 1943191
vectail_inplace 2089606
fplll_fast 2103140
lll_finish 2163823
dbldotsquare 2480065
gramschmidt_dynprec 2690560
affdbldpe 3205284
cget_dpemat 3205297
mpabscmp 4091996
addmuliu2n 4105122
submuliu2n 4197185
ZM_is_upper 4231903
addmulziu 4580842
Babai_dpe 4653169
GS_extraprec 4723380
condition_bound 4723381
ZM2_lll_norms 4840178
gsisinv 5190988
dpe_cmpmul 5261389
dpe_cmp 5261392
lllfp 5365937
spread 5848362
submulziu 5923596
ZM_lll_norms 7128640
nbits2prec64 7483390
cget_dblmat 8412538
addmuliu64_inplace 9581364
submuliu64_inplace 9632106
pari_rint 10794558
rotateG_fast 11545520
update_alpha 11988928
cget_dpevec 13289100
dpe_divz 14073600
dpe_abscmp 14514129
setG2_fast 17026727
addzi 17783773
subzi 18525196
u64toi 19900941
affidpe 20746542
setG_fast 22654347
set_line 24924256
affdpe 25729767
Babai_fast 30199493
rotate 31928831
dblrotate 34636522
cget_dblvec 34971745
dpe_normalize 48105494
dpe_submulz 51700284
dpe_subz 53731444
dpe_mulz 56961482
dpe_normalize0 108553219
dbldotproduct 118220437
itodbl_exp 162598532

Generated by: LCOV version 1.16