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 30572-91e0396466) Lines: 1223 1314 93.1 % Date: 2025-12-14 09:22:17 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	12208
nf_Mignotte_bound	12208
nf_combine_factors	12208
nf_factor_bound	12208
nfcmbf	12208
get_Bhigh	12299
proper_nf	12467
fact_from_sqff	12740
nffactor	13062
nffactor_i	13069
nf_root_bounds	18473
ZqX_normalize	18480
ZqX	18515
bestlift_bound	18515
bestlift_init	18515
init_proj	18515
init_div_data	18550
get_R	18747
max_radius	18747
normlp	20930
nf_L2_bound	22795
init_trace	24416
update_target	24514
guess_roots	25032
normTp	25151
get_maxf	31062
get_nbprimes	31062
nf_pick_prime	31062
fix_nf	34912
get_nfsqff_data	35066
ensure_lt_INT	35080
QXQX_normalize	36438
nf_pol_lift	36728
RgX_int_normalize	36883
nfsqff	39644
nfroots	40232
nfgcd	48070
nfissquarefree	49852
FqX_centermod	53059
trivroots	55594
nfrootsof1	64743
nfsqff_use_Trager	66149
nfgcd_all	88533
cmbf_maxK	112854
lead_simplify	118968
record	125905
nf_bestlift_to_pol	157145
nf_to_Zq	162540
arch_for_T2	204715
get_trace	206195
update_trace	209098
nf_bestlift	262543
FpX_ratlift	363835
get_good_factor	454656
_norml2	479592
FpM_ratlift	2782450
FpC_ratlift	5330903
lift_to_frac	27303855

Generated by: LCOV version 1.16