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 30558-88b7dc3357) Lines: 1603 1779 90.1 % Date: 2025-11-26 09:22:00 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	25199
ZM_hnfall	29199
hnf_i	61738
ZM_snfall	64203
ZM_hnf	89432
hnfadd_i	92479
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134810
ZM_hnfmod	162581
hnf_divscale	197454
ZV_snfclean	227088
ZM_rowrankprofile	227290
hnffinal	227290
ZM_hnflll	232821
hnf_invscale	275331
ZV_snf_group	316773
ZV_snfall	316773
ZV_allequal	322724
remove_0cols	335653
count2	421256
hnfmodid	438217
allhnfmod	438231
hnf_solve	461159
reverse_rows	465631
ZpM_echelon	528371
hnf_invimage	547293
negcmpii	602129
ZM_snf_group	712878
ZM_hnfall_i	752480
update	771795
ZM_snfall_i	796548
hnfmerge_get_1	816120
bezout_step	820439
reduce1	967385
ZMrow_divexact_inplace	976577
ZM_snfclean	1029746
snf_group	1029749
snf_pile	1071873
ZM_snf_no_divide	1235309
ZM_redpart	1551860
Minus	2059229
col_dup	2616750
col_mul	3087090
ZM_hnfmodprime	3364022
FpM_echelon	3364025
FpM_hnfend	3364227
ZM_reduce	4477155
ZM_hnfmodid	4531120
must_swap	4633204
zlm_echelon	4801467
ZM_hnfmodall	5133770
optimal_D	5183042
ZM_hnfmodall_i	5185052
FpV_Fp_mul_part_ip	5411538
subzi	6461506
count	8150202
hnfswap	8503383
ZC_lincomb1z	21872402
ZC_lincomb1z_i	21881995
FpV_red_part_ipvec	37679290
ZC_elem	41188777
affii2_or_copy_gc	47855261
reduce2	53035728
findi_normalize	106084803
findi	106092304
addzi	239695122
addmulzii	518402257

Generated by: LCOV version 1.16