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 30288-703288f808) Lines: 1602 1778 90.1 % Date: 2025-05-19 09:23:07 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	10864
ZM_hnfcenter	25151
ZM_hnfall	28766
hnf_i	61694
ZM_snfall	63959
ZM_hnf	88977
hnfadd_i	91311
ZV_extgcd	110572
ZV_gcdext_i	110586
hnfspec_i	134201
ZM_hnfmod	162495
hnf_divscale	196587
ZV_snfclean	214525
ZM_rowrankprofile	225511
hnffinal	225515
ZM_hnflll	231007
hnf_invscale	237687
ZV_allequal	282416
ZV_snf_group	304178
ZV_snfall	304178
remove_0cols	322617
hnf_solve	370779
hnfmodid	409274
allhnfmod	409288
count2	420125
hnf_invimage	422128
reverse_rows	462037
negcmpii	520888
ZpM_echelon	528073
ZM_snf_group	644537
update	675167
bezout_step	703221
ZM_snfall_i	722908
ZM_hnfall_i	726445
hnfmerge_get_1	743867
ZMrow_divexact_inplace	864093
ZM_snfclean	948746
snf_group	948750
reduce1	967385
snf_pile	985837
ZM_snf_no_divide	1077639
ZM_redpart	1388967
Minus	2048994
col_dup	2607960
col_mul	2700617
ZM_hnfmodprime	3143236
FpM_echelon	3143246
FpM_hnfend	3143391
ZM_reduce	4145058
ZM_hnfmodid	4265673
must_swap	4614100
zlm_echelon	4670595
ZM_hnfmodall	4839098
optimal_D	4887826
ZM_hnfmodall_i	4889684
FpV_Fp_mul_part_ip	5309250
subzi	6445273
count	8099574
hnfswap	8473642
ZC_lincomb1z	21821536
ZC_lincomb1z_i	21829263
FpV_red_part_ipvec	35915401
ZC_elem	39726285
affii2_or_copy_gc	47809227
reduce2	52899306
findi_normalize	105810486
findi	105824181
addzi	240130129
addmulzii	518671324

Generated by: LCOV version 1.16