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 30499-74bdd0ac5b) Lines: 1033 1048 98.6 % Date: 2025-09-18 09:23:44 Functions: 66 66 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
RgV_frac_inplace	24024
_check_gchar_group	13279
bestS	630
check_gchar	7084
check_gchar_group	11445
check_gchar_i	9184
check_gchari	2121
check_localstar	13265
cleanup_vga	1351
cm_select	231
col_2ei	112
compute_Lcyc	630
conductor_expo_pr	1358
embedcol	6706
eulerf_gchar	14
gaddmul	2492623
gcharDLdata	630
gchar_Sval	1911
gchar_algebraic_basis	70
gchar_algebraicnormtype	154
gchar_algebraicoftype	210
gchar_conductor	224
gchar_hnfreduce_shallow	630
gchar_identify	4011
gchar_identify_i	3941
gchar_identify_init	4011
gchar_internal	7084
gchar_log	190673
gchar_logm	192584
gchar_nflog	1911
gchar_snfbasis_shallow	630
gcharalgebraic	280
gcharduallog	1799
gchareval	3969
gchari_conductor	224
gchari_duallog	8750
gchari_eval	186886
gchari_lfun	1400
gcharinit	651
gcharisalgebraic	189
gcharisprincipal	190673
gcharlocal	497
gcharlog	70
gcharlog_conductor_f	1617
gcharlog_conductor_oo	16891
gcharlog_eval_raw	201544
gcharmat_tinverse	1575
gcharmatnewprec_shallow	1743
gcharnewprec	1834
gcharnewprec_i	1834
hnf_block	1239
is_gchar_group	8911
lfungchar	406
lll_block	733
localstar	630
mextraprec	2509
nfembedlog	197126
rowreverse	1239
safelgcols	2121
same_arg	4542
shallow_clean_rat	5041
shallowmatinsert	2326
sprk_get_ncp	2051
vaffect_shallow	4542
vec_v0	2326
vecan_gchar	707

Generated by: LCOV version 1.16