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 - base1.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30849-48ff4d246c) Lines: 1734 1830 94.8 %
Date: 2026-05-01 09:26:53 Functions: 141 159 88.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
ZX_to_monic 0
checksqmat 0
elt_galoismatrixapply 0
embednorm_T2 0
factoredpolred 0
factoredpolred2 0
idealramfrobenius 0
nf_get_allroots 0
nfinitred2 0
nfsplitting 0
polred2 0
polredabs2 0
polredabsall 0
pr_galoismatrixapply 0
rnfnewprec 0
smallpolred 0
smallpolred2 0
vecgaloismatrixapply 0
pr_galoisapply 7
pr_make 7
vecgaloisapply 7
polred 14
polredord 21
poltomonic 42
badp 49
elt_galoisapply 49
polred0 56
rnfnewprec_shallow 56
Polred 70
nfisisom 77
idealfrobenius_aut 98
idealfrobenius 105
get_bnfpol 112
nfisincl 112
idealramgroups 126
nfnewprec 161
nfinitred 182
nfpolred 280
rnfpolredabs 280
tests_OK 287
rnfpolredbest 357
idealramgroupswild 497
incl_disc 539
idealramfrobenius_aut 616
rnfpolred_i 637
v9checkgal 665
v13checkgchar 938
nfisincl_from_fact_frac 1232
nfsplitting_auto 1232
RgFV_to_FlxqV 1239
nfgaloispermtobasis 1379
nfsplitting_composite 1421
nfsplitting0 1435
idealquasifrob 1491
idealinertiagroup 1834
idealramgroupstame 1911
idealramgroups_aut 2408
gal_check_pol 2513
get_nfindex 2597
nfcertify 3367
primes_certify 3367
polredbest 3528
polredbest_i 3885
nfinit_basic_partial 3920
polredbest_aux 4067
filter 4095
polred_aux 4130
zk_galoisapplymod 6276
check_ZKmodule 6737
check_ZKmodule_i 6793
nfisincl_from_fact 7224
nfinit 7311
nfisincl0 7336
partmap_reverse 7343
tschirnhaus 7633
partmap_reverse_frac 8084
partmap_reverse_frac_worker 8084
RgF_to_Flxq 8092
get_aut 8190
FpX_FpC_nfpoleval 8824
ZXX_Q_mul 8897
nfpoleval 11151
nfinit0 11721
ZM_image_shallow 13083
polredabs 13426
nfgaloismatrixapply 13916
polredabs0 14000
remove_duplicates 14000
chk_gen_init 14266
findmindisc 14273
polredabs_i 14273
nfinit_basic_flag 14343
polred_init 18361
set_mulid 22708
checkabgrp 24136
get_bnf 28525
make_Tr 28814
ZX_cmp 30324
chk_gen_prec 32613
v11checkbnf 42749
rawchecknf 51072
rawcheckbnf 51926
ZX_is_better 52054
embed_T2 72148
get_red_G 73949
nf_multable 85365
get_Tr 85366
nfmaxord_to_nf 85366
nfinit_complete 85367
nf_input_type 87407
nfinit_basic 87407
ZX_canon_neg 89776
nfnewprec_shallow 91873
nf_basden 91901
nfgaloismatrix 96509
QX_table_nfpoleval 97404
ZC_galoisapply 97627
chk_gen 100461
get_polchar 100461
set_LLL_basis 103449
get_nf 116578
typv6 126511
cmpii_polred 128468
galoisapply 128839
try_polmin 136483
real_norm 167490
nfmaxord_complete 170734
nffp_init 177670
get_bas_den 206417
v10checknf 217203
get_roots 242738
get_pol 264472
make_M_G 269547
make_G 269563
make_M 269566
nftyp 269871
prec_fix 302172
quicktrace 393716
checkrnf 425525
v13checkrnf 426246
checkrnf_i 437246
nf_multable_worker 557248
checknfelt_mod 615773
get_nfpol 680808
ZX_Q_normalize 845215
ZX_primitive_to_monic 845531
ZX_Z_normalize 848217
nf_get_prec 1281279
checkbid 1521434
checkbid_i 1791322
checkbnr 1797950
checkbnr_i 1981192
checkbnf 3391405
checkbnf_i 5390382
ZX_Q_mul 7032398
embed_norm 17957083
complex_norm 33952950
checknf 89477547
checknf_i 92657563

Generated by: LCOV version 1.16