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: 2025-07-07 09:23:05 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 44553
RgM_is_square_mat 45828
dpetor 94271
setG2_heuristic 188352
realsqrdotproduct 198160
setG_heuristic 206374
dpe_negz 244438
submulzu2n 262549
addmulzu2n 271563
Babai_heuristic 289747
mulshift 318943
dpe_addmuluz 342912
absrsmall2 402705
dpe_submuluz 412446
rotateG 443711
ZM_is_knapsack 606403
ZM_flatter_rank 623979
fplll_flatter 624941
ZM_flatter 625993
dperotate 652462
addmuliu642n 671548
u64toineg 671548
submuliu642n 687471
absrsmall 698128
lll_trivial 771027
dpe_muluz 799909
get_gramschmidt 1097857
realdotproduct 1186355
ZM_is_lower 1204026
lll 1243281
drop 1345178
flat 1345178
potential 1345179
sizered 1345179
affii_or_copy_gc 1390574
dpe_abssmall 1390589
submulshift 1507251
fplll_dpe 1602643
dpe_addz 1943190
vectail_inplace 2089557
fplll_fast 2103084
lll_finish 2163775
dbldotsquare 2480141
gramschmidt_dynprec 2690354
cget_dpemat 3205283
affdbldpe 3205286
mpabscmp 4091252
addmuliu2n 4105645
submuliu2n 4200437
ZM_is_upper 4231695
addmulziu 4580846
Babai_dpe 4653152
GS_extraprec 4723118
condition_bound 4723119
ZM2_lll_norms 4839908
gsisinv 5190751
dpe_cmpmul 5261365
dpe_cmp 5261368
lllfp 5365634
spread 5848060
submulziu 5923656
ZM_lll_norms 7128274
nbits2prec64 7482956
cget_dblmat 8412300
addmuliu64_inplace 9581364
submuliu64_inplace 9632106
pari_rint 10793674
rotateG_fast 11543202
update_alpha 11986992
cget_dpevec 13289231
dpe_divz 14073242
dpe_abscmp 14513699
setG2_fast 17022768
addzi 17783978
subzi 18525318
u64toi 19900941
affidpe 20746341
setG_fast 22649900
set_line 24919481
affdpe 25729442
Babai_fast 30192864
rotate 31923984
dblrotate 34629537
cget_dblvec 34969110
dpe_normalize 48102879
dpe_submulz 51697700
dpe_subz 53728888
dpe_mulz 56958957
dpe_normalize0 108547899
dbldotproduct 118193853
itodbl_exp 162586426

Generated by: LCOV version 1.16