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 30848-b1463d63da) Lines: 1226 1317 93.1 % Date: 2026-04-30 09:27:33 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	3066
ZXQX_gcd	5537
nf_DDF_roots	6391
nf_Beauzamy_bound	12075
nf_Mignotte_bound	12075
nf_combine_factors	12075
nf_factor_bound	12075
nfcmbf	12075
get_Bhigh	12166
nfroots_worker	12291
proper_nf	12299
fact_from_sqff	12572
nffactor	12894
nffactor_i	12901
nf_root_bounds	18466
ZqX_normalize	18473
ZqX	18508
bestlift_bound	18508
bestlift_init	18508
init_proj	18508
init_div_data	18543
get_R	18726
max_radius	18726
normlp	21014
nf_L2_bound	22788
init_trace	24150
update_target	24409
guess_roots	25046
normTp	25270
get_maxf	31483
get_nbprimes	31483
nf_pick_prime	31483
fix_nf	35968
get_nfsqff_data	36124
ensure_lt_INT	36138
nf_pol_lift	36602
RgX_int_normalize	36645
QXQX_normalize	37936
nfsqff	42172
nfroots	42746
nfgcd	48049
nfissquarefree	49824
FqX_centermod	52933
trivroots	55579
nfrootsof1	64764
nfsqff_use_Trager	67626
nfgcd_all	89843
cmbf_maxK	115241
lead_simplify	120894
record	125870
nf_bestlift_to_pol	156851
nf_to_Zq	161756
arch_for_T2	202262
get_trace	206124
update_trace	208860
nf_bestlift	261691
FpX_ratlift	363795
get_good_factor	453477
_norml2	477297
FpM_ratlift	2783162
FpC_ratlift	5333103
lift_to_frac	27291615

Generated by: LCOV version 1.16