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 30418-83092bf331) Lines: 1335 1641 81.4 %
Date: 2025-07-29 09:22:49 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 244430
submulzu2n 262549
addmulzu2n 271563
Babai_heuristic 289747
mulshift 318943
dpe_addmuluz 342913
absrsmall2 402705
dpe_submuluz 412446
rotateG 443710
ZM_is_knapsack 606513
ZM_flatter_rank 623978
fplll_flatter 624939
ZM_flatter 625992
dperotate 652460
addmuliu642n 671548
u64toineg 671548
submuliu642n 687471
absrsmall 698128
lll_trivial 771023
dpe_muluz 799910
get_gramschmidt 1097857
realdotproduct 1186355
ZM_is_lower 1204023
lll 1243279
drop 1345208
flat 1345208
potential 1345208
sizered 1345208
affii_or_copy_gc 1390556
dpe_abssmall 1390583
submulshift 1507251
fplll_dpe 1602639
dpe_addz 1943191
vectail_inplace 2089670
fplll_fast 2103189
lll_finish 2163888
dbldotsquare 2480217
gramschmidt_dynprec 2690417
affdbldpe 3205275
cget_dpemat 3205277
mpabscmp 4091846
addmuliu2n 4104535
submuliu2n 4196941
ZM_is_upper 4231749
addmulziu 4580824
Babai_dpe 4653193
GS_extraprec 4723209
condition_bound 4723209
ZM2_lll_norms 4839932
gsisinv 5190841
dpe_cmpmul 5261411
dpe_cmp 5261414
lllfp 5365721
spread 5848261
submulziu 5923592
ZM_lll_norms 7128427
nbits2prec64 7483070
cget_dblmat 8412751
addmuliu64_inplace 9581364
submuliu64_inplace 9632106
pari_rint 10795135
rotateG_fast 11545778
update_alpha 11989589
cget_dpevec 13289246
dpe_divz 14073720
dpe_abscmp 14514227
setG2_fast 17026846
addzi 17783469
subzi 18524873
u64toi 19900941
affidpe 20746808
setG_fast 22654793
set_line 24924719
affdpe 25729795
Babai_fast 30199769
rotate 31931766
dblrotate 34637203
cget_dblvec 34973232
dpe_normalize 48105843
dpe_submulz 51700511
dpe_subz 53731708
dpe_mulz 56961784
dpe_normalize0 108554236
dbldotproduct 118219948
itodbl_exp 162614418

Generated by: LCOV version 1.16