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

Generated by: LCOV version 1.16