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 30530-11e908049b) Lines: 1602 1778 90.1 %
Date: 2025-10-14 09:22:50 Functions: 96 106 90.6 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
FpM_echelon 3363977
FpM_hnfend 3364190
FpV_Fp_mul_part_ip 5411283
FpV_red_part_ipvec 37678797
Minus 2058929
RgC_elem 511
RgM_hnfall 42
RgM_reduce 84
RgXM_snf 49
ZC_elem 41179560
ZC_lincomb1z 21862755
ZC_lincomb1z_i 21872777
ZM_hnf 89376
ZM_hnf_knapsack 238
ZM_hnfall 29177
ZM_hnfall_i 752454
ZM_hnfcenter 25199
ZM_hnflll 232822
ZM_hnfmod 162582
ZM_hnfmodall 5133848
ZM_hnfmodall_i 5185111
ZM_hnfmodid 4531198
ZM_hnfmodprime 3363989
ZM_hnfperm 385
ZM_redpart 1551909
ZM_reduce 4470223
ZM_rowrankprofile 227293
ZM_snf 15925
ZM_snf_group 712878
ZM_snf_no_divide 1235333
ZM_snfall 64204
ZM_snfall_i 796555
ZM_snfclean 1029744
ZMrow_divexact_inplace 976642
ZV_allequal 322719
ZV_extgcd 110572
ZV_gcdext_i 110586
ZV_hnfgcdext 21
ZV_snf_group 316769
ZV_snf_rank 91
ZV_snf_rank_u 49
ZV_snf_trunc 0
ZV_snfall 316769
ZV_snfclean 227086
ZpM_echelon 528253
addmulzii 518075936
addzi 239454614
affii2_or_copy_gc 47838174
allhnfmod 438234
bezout_step 820424
col_dup 2616832
col_mul 3087077
count 8149277
count2 421286
do_zero 0
findi 106056327
findi_normalize 106047983
gbezout_step 882
gsmith 0
gsmithall 0
gsnf_no_divide 196
hnf 14
hnf_divscale 197453
hnf_i 61704
hnf_invimage 547297
hnf_invscale 275336
hnf_solve 461162
hnfadd 0
hnfadd_i 92478
hnfall 14
hnfallgen 21
hnfdivide 133
hnffinal 227292
hnflll 7
hnfmerge_get_1 816133
hnfmod 14
hnfmodid 438220
hnfperm 14
hnfspec 0
hnfspec_i 134816
hnfswap 8500663
is_RgX 2590
mathnf0 287
mathnfspec 0
matsnf0 469
must_swap 4631285
negcmpii 602135
normalize_as_RgX 364
optimal_D 5183085
p_mat 0
reduce1 967385
reduce2 53012049
remove_0cols 335603
reverse_rows 465627
smith 385
smithall 35
smithclean 693
snf_group 1029747
snf_pile 1071856
snf_pile1 48
snfrank 154
subzi 6459836
trivsmith 0
update 771779
zlm_echelon 4801424
zv_snf_rank 0

Generated by: LCOV version 1.16