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 - hnf_snf.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30387-12623f1693) Lines: 1602 1778 90.1 %
Date: 2025-07-11 09:22:46 Functions: 96 106 90.6 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
FpM_echelon 3361361
FpM_hnfend 3361547
FpV_Fp_mul_part_ip 5408090
FpV_red_part_ipvec 37668180
Minus 2056686
RgC_elem 511
RgM_hnfall 42
RgM_reduce 84
RgXM_snf 49
ZC_elem 41181427
ZC_lincomb1z 21850247
ZC_lincomb1z_i 21859940
ZM_hnf 89392
ZM_hnf_knapsack 238
ZM_hnfall 29159
ZM_hnfall_i 752422
ZM_hnfcenter 25201
ZM_hnflll 232758
ZM_hnfmod 162504
ZM_hnfmodall 5131552
ZM_hnfmodall_i 5182836
ZM_hnfmodid 4528999
ZM_hnfmodprime 3361377
ZM_hnfperm 385
ZM_redpart 1551711
ZM_reduce 4477899
ZM_rowrankprofile 227249
ZM_snf 15869
ZM_snf_group 712827
ZM_snf_no_divide 1235212
ZM_snfall 64190
ZM_snfall_i 796432
ZM_snfclean 1029684
ZMrow_divexact_inplace 976584
ZV_allequal 322723
ZV_extgcd 110572
ZV_gcdext_i 110586
ZV_hnfgcdext 21
ZV_snf_group 316764
ZV_snf_rank 91
ZV_snf_rank_u 49
ZV_snf_trunc 0
ZV_snfall 316763
ZV_snfclean 227093
ZpM_echelon 528263
addmulzii 517900630
addzi 239431606
affii2_or_copy_gc 47792276
allhnfmod 438196
bezout_step 820355
col_dup 2615069
col_mul 3086956
count 8104239
count2 420935
do_zero 0
findi 106008718
findi_normalize 106004227
gbezout_step 882
gsmith 0
gsmithall 0
gsnf_no_divide 196
hnf 14
hnf_divscale 197406
hnf_i 61710
hnf_invimage 547298
hnf_invscale 275326
hnf_solve 461167
hnfadd 0
hnfadd_i 92463
hnfall 14
hnfallgen 21
hnfdivide 133
hnffinal 227249
hnflll 7
hnfmerge_get_1 816103
hnfmod 14
hnfmodid 438182
hnfperm 14
hnfspec 0
hnfspec_i 134786
hnfswap 8496208
is_RgX 2590
mathnf0 287
mathnfspec 0
matsnf0 469
must_swap 4631830
negcmpii 602130
normalize_as_RgX 364
optimal_D 5180794
p_mat 0
reduce1 967385
reduce2 52991409
remove_0cols 335591
reverse_rows 465507
smith 385
smithall 35
smithclean 693
snf_group 1029687
snf_pile 1071761
snf_pile1 48
snfrank 154
subzi 6456808
trivsmith 0
update 771751
zlm_echelon 4797746
zv_snf_rank 0

Generated by: LCOV version 1.16