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 30256-57c6c2b57f) Lines: 1223 1314 93.1 % Date: 2025-05-09 09:19:30 Functions: 75 79 94.9 % 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	168
get_V	476
ZXirred_is_cyclo_translate	2933
QXQX_gcd	3150
ZXQX_gcd	5439
nf_DDF_roots	6258
nf_Beauzamy_bound	12075
nf_Mignotte_bound	12075
nf_combine_factors	12075
nf_factor_bound	12075
nfcmbf	12075
get_Bhigh	12166
proper_nf	12271
fact_from_sqff	12537
nffactor	12866
nffactor_i	12873
nf_root_bounds	18333
ZqX_normalize	18340
ZqX	18375
bestlift_bound	18375
bestlift_init	18375
init_proj	18375
init_div_data	18410
get_R	18621
max_radius	18621
normlp	20860
nf_L2_bound	22410
init_trace	24150
update_target	24458
normTp	25004
guess_roots	25011
get_maxf	27511
get_nbprimes	27511
nf_pick_prime	27511
fix_nf	30738
get_nfsqff_data	30885
ensure_lt_INT	30899
QXQX_normalize	32201
nfsqff	34840
nfroots	36142
nf_pol_lift	36609
RgX_int_normalize	36694
nfgcd	47604
nfissquarefree	49391
FqX_centermod	52933
trivroots	55348
nfsqff_use_Trager	58417
nfrootsof1	64475
nfgcd_all	84061
cmbf_maxK	110922
lead_simplify	114289
record	122723
nf_bestlift_to_pol	156592
nf_to_Zq	161056
arch_for_T2	201822
get_trace	205943
update_trace	208944
nf_bestlift	261402
FpX_ratlift	362616
get_good_factor	427065
_norml2	476821
FpM_ratlift	2740819
FpC_ratlift	5293462
lift_to_frac	27129416

Generated by: LCOV version 1.16