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 30552-d1d0643eee) Lines: 1603 1779 90.1 % Date: 2025-11-21 09:22:16 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	25203
ZM_hnfall	29179
hnf_i	61733
ZM_snfall	64204
ZM_hnf	89407
hnfadd_i	92414
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134814
ZM_hnfmod	162581
hnf_divscale	197442
ZV_snfclean	227093
ZM_rowrankprofile	227229
hnffinal	227230
ZM_hnflll	232757
hnf_invscale	275337
ZV_snfall	316770
ZV_snf_group	316771
ZV_allequal	322717
remove_0cols	335638
count2	421080
hnfmodid	438212
allhnfmod	438225
hnf_solve	461149
reverse_rows	465497
ZpM_echelon	528387
hnf_invimage	547286
negcmpii	602128
ZM_snf_group	712900
ZM_hnfall_i	752464
update	771762
ZM_snfall_i	796572
hnfmerge_get_1	816139
bezout_step	820431
reduce1	967385
ZMrow_divexact_inplace	976612
ZM_snfclean	1029740
snf_group	1029744
snf_pile	1071864
ZM_snf_no_divide	1235352
ZM_redpart	1552020
Minus	2058621
col_dup	2616811
col_mul	3087010
FpM_echelon	3364047
ZM_hnfmodprime	3364047
FpM_hnfend	3364273
ZM_reduce	4476112
ZM_hnfmodid	4531359
must_swap	4632754
zlm_echelon	4801574
ZM_hnfmodall	5134023
optimal_D	5183189
ZM_hnfmodall_i	5185293
FpV_Fp_mul_part_ip	5411415
subzi	6458717
count	8148631
hnfswap	8500174
ZC_lincomb1z	21860758
ZC_lincomb1z_i	21872734
FpV_red_part_ipvec	37683412
ZC_elem	41190000
affii2_or_copy_gc	47834628
reduce2	53012348
findi_normalize	106053850
findi	106061705
addzi	239460602
addmulzii	518119636

Generated by: LCOV version 1.16