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 30640-c2c58e18c5) Lines: 1223 1314 93.1 % Date: 2026-01-27 08:51:18 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	2556
QXQX_gcd	3003
ZXQX_gcd	5264
nf_DDF_roots	5691
nf_Beauzamy_bound	7664
nf_Mignotte_bound	7664
nf_combine_factors	7664
nf_factor_bound	7664
nfcmbf	7664
get_Bhigh	7755
proper_nf	7918
fact_from_sqff	8161
nffactor	8483
nffactor_i	8490
nf_root_bounds	13355
ZqX_normalize	13362
ZqX	13397
bestlift_bound	13397
bestlift_init	13397
init_proj	13397
init_div_data	13432
get_R	13615
max_radius	13615
init_trace	15328
nfgcd	17414
nf_L2_bound	17617
guess_roots	17662
nfissquarefree	19060
normTp	19459
update_target	19581
normlp	20586
get_maxf	23019
get_nbprimes	23019
nf_pick_prime	23019
fix_nf	26813
get_nfsqff_data	26967
ensure_lt_INT	26981
RgX_int_normalize	27406
QXQX_normalize	28304
nf_pol_lift	30130
nfsqff	31555
nfroots	36712
FqX_centermod	46042
trivroots	47997
nfgcd_all	49778
nfsqff_use_Trager	50007
nfrootsof1	52797
lead_simplify	65262
cmbf_maxK	87409
record	97411
nf_to_Zq	130068
nf_bestlift_to_pol	133145
arch_for_T2	156982
update_trace	194392
get_trace	199894
nf_bestlift	216543
FpX_ratlift	339538
get_good_factor	362797
_norml2	421938
FpM_ratlift	2590586
FpC_ratlift	4993380
lift_to_frac	25882013

Generated by: LCOV version 1.16