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 30670-52869c8c38) Lines: 1223 1314 93.1 % Date: 2026-02-05 09:23:49 Functions: 75 79 94.9 % Legend: Lines: hit not hit

Function Name	Hit count
FlxqXQV_fixedalg	0
FpC_ratlift	5329751
FpM_ratlift	2781800
FpX_ratlift	363498
FqX_centermod	52933
QXQX_gcd	3003
QXQX_normalize	36239
RgX_galconj_bound	63
RgX_int_normalize	36645
ZXQX_gcd	5264
ZXirred_is_cyclo_translate	2940
ZqX	18382
ZqX_normalize	18347
_norml2	477313
arch_for_T2	202266
bestlift_bound	18382
bestlift_init	18382
cmbf_maxK	112679
ensure_lt_INT	34916
fact_from_sqff	12572
fix_nf	34748
fixedalg_order	0
get_Bhigh	12166
get_R	18600
get_V	476
get_good_factor	450940
get_maxf	30898
get_nbprimes	30898
get_nfsqff_data	34902
get_trace	206125
guess_roots	24997
init_div_data	18417
init_proj	18382
init_trace	24150
lead_simplify	118757
lift_to_frac	27316700
max_radius	18600
nf_Beauzamy_bound	12075
nf_DDF_roots	6265
nf_L2_bound	22662
nf_LLL_cmbf	91
nf_Mignotte_bound	12075
nf_bestlift	261432
nf_bestlift_to_pol	156592
nf_chk_factors	98
nf_combine_factors	12075
nf_factor_bound	12075
nf_pick_prime	30898
nf_pol_lift	36602
nf_root_bounds	18340
nf_to_Zq	161301
nfcmbf	12075
nffactor	12894
nffactor_i	12901
nffactormod	7
nfgcd	48046
nfgcd_all	88345
nfissquarefree	49826
nfroots	40236
nfroots_if_split	21
nfrootsof1	64714
nfsqff	39480
nfsqff_trager	175
nfsqff_use_Trager	65820
normTp	25018
normlp	20902
polfnf	14
proper_nf	12299
record	125222
rnfabelianconjgen	0
rnfabelianconjgen_i	42
rnffrobeniuslift	35
rnfgaloisanalysis	35
rnfgaloisconj_bound	42
rnfisabelian	42
trivroots	55579
update_target	24409
update_trace	208860
zerofact	0

Generated by: LCOV version 1.16