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 - nffactor.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30622-caa25a75db) Lines: 1223 1314 93.1 % Date: 2026-01-22 09:18:00 Functions: 75 79 94.9 % Legend: Lines: hit not hit

Function Name	Hit count
FlxqXQV_fixedalg	0
FpC_ratlift	5199179
FpM_ratlift	2720647
FpX_ratlift	356947
FqX_centermod	48914
QXQX_gcd	3003
QXQX_normalize	34374
RgX_galconj_bound	63
RgX_int_normalize	33122
ZXQX_gcd	5264
ZXirred_is_cyclo_translate	2788
ZqX	17041
ZqX_normalize	17006
_norml2	448401
arch_for_T2	183039
bestlift_bound	17041
bestlift_init	17041
cmbf_maxK	105445
ensure_lt_INT	33048
fact_from_sqff	11347
fix_nf	32885
fixedalg_order	0
get_Bhigh	10940
get_R	17260
get_V	474
get_good_factor	426504
get_maxf	29045
get_nbprimes	29045
get_nfsqff_data	33038
get_trace	201128
guess_roots	23353
init_div_data	17076
init_proj	17041
init_trace	21700
lead_simplify	108419
lift_to_frac	26479750
max_radius	17260
nf_Beauzamy_bound	10850
nf_DDF_roots	6150
nf_L2_bound	21302
nf_LLL_cmbf	90
nf_Mignotte_bound	10850
nf_bestlift	239080
nf_bestlift_to_pol	143958
nf_chk_factors	97
nf_combine_factors	10850
nf_factor_bound	10850
nf_pick_prime	29045
nf_pol_lift	33448
nf_root_bounds	17000
nf_to_Zq	148718
nfcmbf	10850
nffactor	11670
nffactor_i	11679
nffactormod	7
nfgcd	42264
nfgcd_all	80694
nfissquarefree	43988
nfroots	39596
nfroots_if_split	21
nfrootsof1	58936
nfsqff	37608
nfsqff_trager	175
nfsqff_use_Trager	62105
normTp	23561
normlp	20846
polfnf	14
proper_nf	11085
record	116814
rnfabelianconjgen	0
rnfabelianconjgen_i	42
rnffrobeniuslift	35
rnfgaloisanalysis	35
rnfgaloisconj_bound	42
rnfisabelian	42
trivroots	50685
update_target	22113
update_trace	190510
zerofact	0

Generated by: LCOV version 1.16