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 29950-285c5b69ed) Lines: 1612 1788 90.2 % Date: 2025-02-05 09:09:51 Functions: 97 107 90.7 % 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	10850
ZM_hnfcenter	25213
ZM_hnfall	28742
hnf_i	61660
ZM_snfall	63986
ZM_hnf	88924
hnfadd_i	91115
ZV_extgcd	109221
ZV_gcdext_i	109235
hnfspec_i	134298
ZM_hnfmod	162378
hnf_divscale	196916
ZV_snfclean	214274
ZV_allequal	219992
ZM_rowrankprofile	225412
hnffinal	225414
ZM_hnflll	230923
hnf_invscale	237237
ZV_snf_group	303907
ZV_snfall	303907
hnf_solve	321091
remove_0cols	321738
hnf_invimage	372342
hnfmodid	408043
allhnfmod	408057
count2	420342
reverse_rows	461834
negcmpii	520243
ZpM_echelon	528338
ZM_snf_group	643730
update	674816
bezout_step	702932
ZM_snfall_i	722099
ZM_hnfall_i	725468
hnfmerge_get_1	742435
ZMrow_divexact_inplace	862976
ZM_snfclean	947713
snf_group	947719
reduce1	950524
snf_pile	984819
ZM_snf_no_divide	1077094
ZM_redpart	1388543
Minus	2050891
col_dup	2609370
col_mul	2699158
ZM_hnfmodprime	3143007
FpM_echelon	3143013
FpM_hnfend	3143162
ZM_reduce	4140751
ZM_hnfmodid	4296482
must_swap	4613977
zlm_echelon	4670404
ZM_hnfmodall	4868389
optimal_D	4916800
ZM_hnfmodall_i	4918932
FpV_Fp_mul_part_ip	5311763
subzi	6448754
count	8102235
affii_or_copy_gc	8457834
hnfswap	8470657
ZC_lincomb1z	21819170
ZC_lincomb1z_i	21829434
FpV_red_part_ipvec	35882283
ZC_elem	39685077
affii2_or_copy_gc	47775639
reduce2	52902577
findi_normalize	105834750
findi	105841394
addzi	239229358
addmulzii	517527714

Generated by: LCOV version 1.16