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) Coverage Total Hit Test: PARI/GP v2.19.0 lcov report (development 31057-89c4d54ba6) Lines: 93.2 % 1317 1227 Test Date: 2026-07-25 17:02:42 Functions: 95.0 % 80 76 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	3045
ZXQX_gcd	5544
nf_DDF_roots	6941
nf_Beauzamy_bound	12075
nf_Mignotte_bound	12075
nf_combine_factors	12075
nf_factor_bound	12075
nfcmbf	12075
get_Bhigh	12166
fact_from_sqff	12572
proper_nf	12752
nffactor	12894
nffactor_i	12901
nfroots_worker	13952
nf_root_bounds	19016
ZqX_normalize	19023
ZqX	19058
bestlift_bound	19058
bestlift_init	19058
init_proj	19058
init_div_data	19093
get_R	19276
max_radius	19276
normlp	21738
nf_L2_bound	23338
init_trace	24150
update_target	24409
guess_roots	25046
normTp	26370
get_maxf	31927
get_nbprimes	31927
nf_pick_prime	31927
fix_nf	36449
get_nfsqff_data	36603
ensure_lt_INT	36617
nf_pol_lift	36624
RgX_int_normalize	36645
QXQX_normalize	38367
nfsqff	42315
nfroots	43211
nfgcd	48049
nfissquarefree	49826
FqX_centermod	52955
trivroots	55587
nfrootsof1	64771
nfsqff_use_Trager	68551
nfgcd_all	90329
cmbf_maxK	114786
lead_simplify	121394
record	129423
nf_bestlift_to_pol	158557
nf_to_Zq	165208
arch_for_T2	202270
get_trace	206133
update_trace	208864
nf_bestlift	263401
FpX_ratlift	364208
get_good_factor	462893
_norml2	477366
FpM_ratlift	2785274
FpC_ratlift	5347682
lift_to_frac	27604714

Generated by: LCOV version 2.0-1