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 - grossenchar.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30482-15ec328664) Lines: 1033 1048 98.6 % Date: 2025-09-06 09:24:15 Functions: 66 66 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
eulerf_gchar	14
gchar_algebraic_basis	70
gcharlog	70
col_2ei	112
gchar_algebraicnormtype	154
gcharisalgebraic	189
gchar_algebraicoftype	210
cm_select	224
gchar_conductor	224
gchari_conductor	224
gcharalgebraic	280
lfungchar	392
gcharlocal	497
bestS	623
compute_Lcyc	623
gcharDLdata	623
gchar_hnfreduce_shallow	623
gchar_snfbasis_shallow	623
localstar	623
gcharinit	644
vecan_gchar	693
lll_block	726
hnf_block	1211
rowreverse	1211
cleanup_vga	1323
conductor_expo_pr	1330
gchari_lfun	1372
gcharmat_tinverse	1573
gcharlog_conductor_f	1589
gcharmatnewprec_shallow	1748
gcharduallog	1799
gcharnewprec	1806
gcharnewprec_i	1806
gchar_Sval	1904
gchar_nflog	1904
sprk_get_ncp	2016
check_gchari	2079
safelgcols	2079
shallowmatinsert	2324
vec_v0	2324
mextraprec	2519
gchar_identify_i	3941
gchareval	3969
gchar_identify	4011
gchar_identify_init	4011
same_arg	4552
vaffect_shallow	4552
shallow_clean_rat	5050
embedcol	6657
check_gchar	7070
gchar_internal	7070
gchari_duallog	8708
is_gchar_group	8897
check_gchar_i	9128
check_gchar_group	11431
check_localstar	13223
_check_gchar_group	13237
gcharlog_conductor_oo	16863
RgV_frac_inplace	23982
gchari_eval	184681
gchar_log	188468
gcharisprincipal	188468
gchar_logm	190372
nfembedlog	194924
gcharlog_eval_raw	199339
gaddmul	2476278

Generated by: LCOV version 1.16