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:

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 30499-74bdd0ac5b) Lines: 1223 1314 93.1 %
Date: 2025-09-16 09:24:07 Functions: 75 79 94.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
FlxqXQV_fixedalg 0
FpC_ratlift 5329724
FpM_ratlift 2781437
FpX_ratlift 363733
FqX_centermod 53051
QXQX_gcd 3003
QXQX_normalize 36430
RgX_galconj_bound 63
RgX_int_normalize 36869
ZXQX_gcd 5264
ZXirred_is_cyclo_translate 2940
ZqX 18506
ZqX_normalize 18471
_norml2 479535
arch_for_T2 204665
bestlift_bound 18508
bestlift_init 18508
cmbf_maxK 112818
ensure_lt_INT 35072
fact_from_sqff 12733
fix_nf 34904
fixedalg_order 0
get_Bhigh 12292
get_R 18740
get_V 476
get_good_factor 454565
get_maxf 31054
get_nbprimes 31054
get_nfsqff_data 35058
get_trace 206195
guess_roots 25018
init_div_data 18543
init_proj 18507
init_trace 24402
lead_simplify 118948
lift_to_frac 27303283
max_radius 18740
nf_Beauzamy_bound 12201
nf_DDF_roots 6265
nf_L2_bound 22781
nf_LLL_cmbf 91
nf_Mignotte_bound 12201
nf_bestlift 262496
nf_bestlift_to_pol 157124
nf_chk_factors 98
nf_combine_factors 12201
nf_factor_bound 12201
nf_pick_prime 31054
nf_pol_lift 36721
nf_root_bounds 18466
nf_to_Zq 162498
nfcmbf 12201
nffactor 13055
nffactor_i 13062
nffactormod 7
nfgcd 48057
nfgcd_all 88510
nfissquarefree 49839
nfroots 40231
nfroots_if_split 21
nfrootsof1 64729
nfsqff 39636
nfsqff_trager 175
nfsqff_use_Trager 66133
normTp 25144
normlp 20930
polfnf 14
proper_nf 12460
record 125866
rnfabelianconjgen 0
rnfabelianconjgen_i 42
rnffrobeniuslift 35
rnfgaloisanalysis 35
rnfgaloisconj_bound 42
rnfisabelian 42
trivroots 55586
update_target 24507
update_trace 209084
zerofact 0

Generated by: LCOV version 1.16