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 30532-0c728fd268) Lines: 1335 1641 81.4 %
Date: 2025-10-20 09:22:51 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 4246
fplll_heuristic 4246
gc_lll 4835
lllgram 9089
truncexpo 12139
ZC_to_RC 15952
dpeM_diagonal_shallow 20287
RgM_flip 34918
lllgramint 36439
lllall 36699
get_gaussred 44560
RgM_is_square_mat 45828
dpetor 94271
setG2_heuristic 188352
realsqrdotproduct 198160
setG_heuristic 206374
dpe_negz 244433
submulzu2n 262549
addmulzu2n 271563
Babai_heuristic 289747
mulshift 318943
dpe_addmuluz 342913
absrsmall2 402705
dpe_submuluz 412454
rotateG 443711
ZM_is_knapsack 606408
ZM_flatter_rank 624465
fplll_flatter 625426
ZM_flatter 626479
dperotate 652462
addmuliu642n 671548
u64toineg 671548
submuliu642n 687471
absrsmall 698128
lll_trivial 771727
dpe_muluz 799916
get_gramschmidt 1098348
realdotproduct 1186355
ZM_is_lower 1204529
lll 1243329
drop 1345894
potential 1345895
flat 1345898
sizered 1345898
affii_or_copy_gc 1390596
dpe_abssmall 1390599
submulshift 1507251
fplll_dpe 1603162
dpe_addz 1943187
vectail_inplace 2090072
fplll_fast 2103594
lll_finish 2164296
dbldotsquare 2480558
gramschmidt_dynprec 2691796
cget_dpemat 3206317
affdbldpe 3206322
mpabscmp 4092926
addmuliu2n 4106990
submuliu2n 4200809
ZM_is_upper 4233640
addmulziu 4580852
Babai_dpe 4654180
GS_extraprec 4724663
condition_bound 4724664
ZM2_lll_norms 4843614
gsisinv 5192300
dpe_cmpmul 5262370
dpe_cmp 5262384
lllfp 5367844
spread 5849623
submulziu 5923721
ZM_lll_norms 7132522
nbits2prec64 7486420
cget_dblmat 8414366
addmuliu64_inplace 9581364
submuliu64_inplace 9632106
pari_rint 10793517
rotateG_fast 11544399
update_alpha 11988331
cget_dpevec 13292709
dpe_divz 14075028
dpe_abscmp 14515526
setG2_fast 17024963
addzi 17783894
subzi 18525339
u64toi 19900941
affidpe 20749497
setG_fast 22652932
set_line 24923247
affdpe 25731174
Babai_fast 30197592
rotate 31927798
dblrotate 34633239
cget_dblvec 34977191
dpe_normalize 48107899
dpe_submulz 51701585
dpe_subz 53732790
dpe_mulz 56963796
dpe_normalize0 108559437
dbldotproduct 118211244
itodbl_exp 162540795

Generated by: LCOV version 1.16