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 30483-b6b1f87815) Lines: 1223 1314 93.1 % Date: 2025-09-12 09:24:16 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	2933
QXQX_gcd	3003
ZXQX_gcd	5264
nf_DDF_roots	6264
nf_Beauzamy_bound	12201
nf_Mignotte_bound	12201
nf_combine_factors	12201
nf_factor_bound	12201
nfcmbf	12201
get_Bhigh	12292
proper_nf	12460
fact_from_sqff	12733
nffactor	13055
nffactor_i	13062
nf_root_bounds	18465
ZqX_normalize	18471
ZqX	18506
bestlift_bound	18507
bestlift_init	18507
init_proj	18507
init_div_data	18542
get_R	18739
max_radius	18739
normlp	20926
nf_L2_bound	22780
init_trace	24402
update_target	24507
guess_roots	25010
normTp	25142
get_maxf	31052
get_nbprimes	31052
nf_pick_prime	31052
fix_nf	34902
get_nfsqff_data	35056
ensure_lt_INT	35068
QXQX_normalize	36428
nf_pol_lift	36721
RgX_int_normalize	36869
nfsqff	39634
nfroots	40229
nfgcd	48054
nfissquarefree	49839
FqX_centermod	53052
trivroots	55586
nfrootsof1	64721
nfsqff_use_Trager	66129
nfgcd_all	88507
cmbf_maxK	112819
lead_simplify	118940
record	125863
nf_bestlift_to_pol	157122
nf_to_Zq	162494
arch_for_T2	204659
get_trace	206195
update_trace	209084
nf_bestlift	262493
FpX_ratlift	363735
get_good_factor	454550
_norml2	479531
FpM_ratlift	2779315
FpC_ratlift	5327583
lift_to_frac	27314217

Generated by: LCOV version 1.16