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 30446-bebd557ed6) Lines: 1602 1778 90.1 % Date: 2025-08-05 09:23:54 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	29173
hnf_i	61695
ZM_snfall	64196
ZM_hnf	89391
hnfadd_i	92464
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134809
ZM_hnfmod	162567
hnf_divscale	197450
ZV_snfclean	227094
ZM_rowrankprofile	227273
hnffinal	227275
ZM_hnflll	232805
hnf_invscale	275323
ZV_snfall	316768
ZV_snf_group	316769
ZV_allequal	322718
remove_0cols	335594
count2	421358
hnfmodid	438218
allhnfmod	438232
hnf_solve	461141
reverse_rows	465586
ZpM_echelon	528236
hnf_invimage	547290
negcmpii	602123
ZM_snf_group	712873
ZM_hnfall_i	752446
update	771814
ZM_snfall_i	796541
hnfmerge_get_1	816131
bezout_step	820474
reduce1	967385
ZMrow_divexact_inplace	976591
ZM_snfclean	1029719
snf_group	1029724
snf_pile	1071829
ZM_snf_no_divide	1235312
ZM_redpart	1551867
Minus	2059506
col_dup	2616874
col_mul	3087227
FpM_echelon	3361833
ZM_hnfmodprime	3361839
FpM_hnfend	3362095
ZM_reduce	4471003
ZM_hnfmodid	4528827
must_swap	4631895
zlm_echelon	4799216
ZM_hnfmodall	5131434
optimal_D	5180704
ZM_hnfmodall_i	5182718
FpV_Fp_mul_part_ip	5408944
subzi	6459046
count	8149536
hnfswap	8501052
ZC_lincomb1z	21871585
ZC_lincomb1z_i	21880763
FpV_red_part_ipvec	37664459
ZC_elem	41168921
affii2_or_copy_gc	47846139
reduce2	53022377
findi_normalize	106078114
findi	106087087
addzi	239594295
addmulzii	518282855

Generated by: LCOV version 1.16