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 - QX_factor.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30209-fa4743ed68) Lines: 913 954 95.7 % Date: 2025-04-25 09:18:24 Functions: 61 64 95.3 % Legend: Lines: hit not hit

Function Name	Hit count
BD_deg1	0
Rg_is_QXk	0
ZXk_divexact	0
next2pow	14
LLL_cmbf	126
chk_factors	140
QXk_gcd	189
polcyclofactors	315
chk_factors_get	350
BD_odd	406
QX_factor	791
poliscycloprod	1029
LLL_check_progress	1547
myconcat	2310
BD	2359
QX_gcd	18630
_gcd	18819
invphi	19578
ZX_factor	49574
cmbf	49707
cmbf_precs	49707
combine_factors	49707
fact_from_DDF	50358
ZX_factor_i	50365
Beauzamy_bound	60194
Mignotte_bound	60194
factor_bound	60194
poliscyclo	98955
ZX_is_irred	102184
root_bound	109944
ZX_gcd_chinese	115227
ZX_gcd_filter	121381
ZX_DDF	151869
shifteval	183318
ZX_is_squarefree	197661
ZX_DDF_max	203667
ZX_squff	332515
DDF_roots	1622731
nfrootsQ	1622738
ZXk_gcd	1686063
rec	1714455
pick_prime	1826398
ZXkX_ZXk_divexact	2528103
ZXk_divexact_i	2529297
ZXkX_ZXk_divexact_s	2571335
ZX_radical	2662461
ZXk_divides_i	2789715
centeri2n	3214540
ZXkX_ZXk_divides_s	3264969
ZX_gcd_slice	3354132
ZX_gcd_worker	3354134
ZX_gcd_Flx	3365779
ZXk_content_shallow	3445402
dividesii	3481571
ZXk_center2n	4910915
ZXk_renormalize	4961344
ZXk_divides	6218604
ZX_divides	6553125
ZX_divides_i	6581783
ZXk_divexact_s	7584467
ZXk_gcd_i	8689704
ZXk_divides_s	10123448
ZX_gcd	10622967
ZX_gcd_all	13958358

Generated by: LCOV version 1.16