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 30318-7d854b8994) Lines: 913 954 95.7 % Date: 2025-06-06 09:19:58 Functions: 61 64 95.3 % Legend: Lines: hit not hit

Function Name	Hit count
BD	2359
BD_deg1	0
BD_odd	406
Beauzamy_bound	60256
DDF_roots	1622141
LLL_check_progress	1547
LLL_cmbf	126
Mignotte_bound	60256
QX_factor	791
QX_gcd	18623
QXk_gcd	189
Rg_is_QXk	0
ZX_DDF	151910
ZX_DDF_max	203788
ZX_divides	6553215
ZX_divides_i	6581985
ZX_factor	49574
ZX_factor_i	50365
ZX_gcd	10623090
ZX_gcd_Flx	3365827
ZX_gcd_all	13957359
ZX_gcd_chinese	115245
ZX_gcd_filter	121398
ZX_gcd_slice	3354185
ZX_gcd_worker	3354185
ZX_is_irred	102242
ZX_is_squarefree	197747
ZX_radical	2661323
ZX_squff	332522
ZXkX_ZXk_divexact	2528103
ZXkX_ZXk_divexact_s	2571335
ZXkX_ZXk_divides_s	3264969
ZXk_center2n	4910915
ZXk_content_shallow	3445402
ZXk_divexact	0
ZXk_divexact_i	2529297
ZXk_divexact_s	7584467
ZXk_divides	6218604
ZXk_divides_i	2789715
ZXk_divides_s	10123448
ZXk_gcd	1686063
ZXk_gcd_i	8689704
ZXk_renormalize	4961344
_gcd	18812
centeri2n	3214540
chk_factors	140
chk_factors_get	350
cmbf	49770
cmbf_precs	49770
combine_factors	49770
dividesii	3481571
fact_from_DDF	50358
factor_bound	60256
invphi	19620
myconcat	2310
next2pow	14
nfrootsQ	1622141
pick_prime	1825929
polcyclofactors	315
poliscyclo	98975
poliscycloprod	1029
rec	1714455
root_bound	110013
shifteval	183466

Generated by: LCOV version 1.16