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 30587-f85873d515) Lines: 1223 1314 93.1 % Date: 2025-12-27 09:21:13 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	175
get_V	476
ZXirred_is_cyclo_translate	2940
QXQX_gcd	3003
ZXQX_gcd	5264
nf_DDF_roots	6265
nf_Beauzamy_bound	12075
nf_Mignotte_bound	12075
nf_combine_factors	12075
nf_factor_bound	12075
nfcmbf	12075
get_Bhigh	12166
proper_nf	12298
fact_from_sqff	12572
nffactor	12893
nffactor_i	12901
nf_root_bounds	18340
ZqX_normalize	18346
ZqX	18381
bestlift_bound	18382
bestlift_init	18382
init_proj	18382
init_div_data	18417
get_R	18600
max_radius	18600
normlp	20902
nf_L2_bound	22661
init_trace	24150
update_target	24409
guess_roots	24996
normTp	25018
get_maxf	30892
get_nbprimes	30892
nf_pick_prime	30892
fix_nf	34742
get_nfsqff_data	34896
ensure_lt_INT	34910
QXQX_normalize	36233
nf_pol_lift	36602
RgX_int_normalize	36645
nfsqff	39474
nfroots	40230
nfgcd	48045
nfissquarefree	49825
FqX_centermod	52933
trivroots	55573
nfrootsof1	64708
nfsqff_use_Trager	65809
nfgcd_all	88336
cmbf_maxK	112483
lead_simplify	118740
record	125217
nf_bestlift_to_pol	156592
nf_to_Zq	161288
arch_for_T2	202268
get_trace	206125
update_trace	208860
nf_bestlift	261432
FpX_ratlift	363488
get_good_factor	450911
_norml2	477306
FpM_ratlift	2781675
FpC_ratlift	5328846
lift_to_frac	27056287

Generated by: LCOV version 1.16