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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 30504-e6f76a2795) Lines: 1602 1778 90.1 % Date: 2025-09-29 09:23:05 Functions: 96 106 90.6 % Legend: Lines: hit not hit

Function Name	Hit count
ZV_snf_trunc	0
do_zero	0
gsmith	0
gsmithall	0
hnfadd	0
hnfspec	0
mathnfspec	0
p_mat	0
trivsmith	0
zv_snf_rank	0
hnflll	7
hnf	14
hnfall	14
hnfmod	14
hnfperm	14
ZV_hnfgcdext	21
hnfallgen	21
smithall	35
RgM_hnfall	42
snf_pile1	48
RgXM_snf	49
ZV_snf_rank_u	49
RgM_reduce	84
ZV_snf_rank	91
hnfdivide	133
snfrank	154
gsnf_no_divide	196
ZM_hnf_knapsack	238
mathnf0	287
normalize_as_RgX	364
ZM_hnfperm	385
smith	385
matsnf0	469
RgC_elem	511
smithclean	693
gbezout_step	882
is_RgX	2590
ZM_snf	15925
ZM_hnfcenter	25201
ZM_hnfall	29180
hnf_i	61739
ZM_snfall	64204
ZM_hnf	89414
hnfadd_i	92494
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134813
ZM_hnfmod	162582
hnf_divscale	197442
ZV_snfclean	227093
ZM_rowrankprofile	227309
hnffinal	227310
ZM_hnflll	232840
hnf_invscale	275331
ZV_snf_group	316767
ZV_snfall	316767
ZV_allequal	322718
remove_0cols	335602
count2	421187
hnfmodid	438217
allhnfmod	438231
hnf_solve	461144
reverse_rows	465661
ZpM_echelon	528251
hnf_invimage	547277
negcmpii	602119
ZM_snf_group	712894
ZM_hnfall_i	752456
update	771774
ZM_snfall_i	796565
hnfmerge_get_1	816103
bezout_step	820417
reduce1	967385
ZMrow_divexact_inplace	976625
ZM_snfclean	1029746
snf_group	1029755
snf_pile	1071869
ZM_snf_no_divide	1235337
ZM_redpart	1551908
Minus	2058969
col_dup	2616900
col_mul	3087040
FpM_echelon	3363963
ZM_hnfmodprime	3363981
FpM_hnfend	3364125
ZM_reduce	4477195
ZM_hnfmodid	4531263
must_swap	4633211
zlm_echelon	4801252
ZM_hnfmodall	5133858
optimal_D	5183264
ZM_hnfmodall_i	5185164
FpV_Fp_mul_part_ip	5411242
subzi	6461042
count	8149539
hnfswap	8502187
ZC_lincomb1z	21868992
ZC_lincomb1z_i	21875624
FpV_red_part_ipvec	37679792
ZC_elem	41186207
affii2_or_copy_gc	47853072
reduce2	53018507
findi_normalize	106062020
findi	106069890
addzi	239569120
addmulzii	518271204

Generated by: LCOV version 1.16