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 30838-aa3635ec72) Lines: 1226 1317 93.1 % Date: 2026-04-27 09:26:59 Functions: 76 80 95.0 % Legend: Lines: hit not hit

Function Name	Hit count
FlxqXQV_fixedalg	0
fixedalg_order	0
rnfabelianconjgen	0
zerofact	0
nffactormod	7
polfnf	14
nfroots_if_split	21
rnffrobeniuslift	35
rnfgaloisanalysis	35
rnfabelianconjgen_i	42
rnfgaloisconj_bound	42
rnfisabelian	42
RgX_galconj_bound	63
nf_LLL_cmbf	91
nf_chk_factors	98
nfsqff_trager	175
get_V	476
ZXirred_is_cyclo_translate	2989
QXQX_gcd	3003
ZXQX_gcd	5264
nf_DDF_roots	6257
nfroots_worker	12016
nf_Beauzamy_bound	12075
nf_Mignotte_bound	12075
nf_combine_factors	12075
nf_factor_bound	12075
nfcmbf	12075
get_Bhigh	12166
proper_nf	12299
fact_from_sqff	12572
nffactor	12894
nffactor_i	12901
nf_root_bounds	18332
ZqX_normalize	18339
ZqX	18374
bestlift_bound	18374
bestlift_init	18374
init_proj	18374
init_div_data	18409
get_R	18592
max_radius	18592
normlp	20814
nf_L2_bound	22654
init_trace	24150
update_target	24409
normTp	25002
guess_roots	25046
get_maxf	30882
get_nbprimes	30882
nf_pick_prime	30883
fix_nf	34740
get_nfsqff_data	34894
ensure_lt_INT	34908
QXQX_normalize	36231
nf_pol_lift	36602
RgX_int_normalize	36645
nfsqff	39479
nfroots	41138
nfgcd	48048
nfissquarefree	49825
FqX_centermod	52933
trivroots	55580
nfrootsof1	64764
nfsqff_use_Trager	65798
nfgcd_all	88339
cmbf_maxK	112693
lead_simplify	118751
record	125175
nf_bestlift_to_pol	156576
nf_to_Zq	161277
arch_for_T2	202270
get_trace	206125
update_trace	208860
nf_bestlift	261415
FpX_ratlift	363609
get_good_factor	450695
_norml2	477303
FpM_ratlift	2782542
FpC_ratlift	5330976
lift_to_frac	27265739

Generated by: LCOV version 1.16