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 30835-e55edf4b45) Lines: 1734 1830 94.8 %
Date: 2026-04-24 09:27:20 Functions: 141 159 88.7 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
FpX_FpC_nfpoleval 8824
Polred 70
QX_table_nfpoleval 97408
RgFV_to_FlxqV 1239
RgF_to_Flxq 8092
ZC_galoisapply 97626
ZM_image_shallow 13083
ZXX_Q_mul 8897
ZX_Q_mul 6905783
ZX_Q_normalize 845209
ZX_Z_normalize 848205
ZX_canon_neg 89776
ZX_cmp 30323
ZX_is_better 52054
ZX_primitive_to_monic 845528
ZX_to_monic 0
badp 49
check_ZKmodule 6737
check_ZKmodule_i 6793
checkabgrp 24136
checkbid 1521439
checkbid_i 1791351
checkbnf 3391426
checkbnf_i 5390415
checkbnr 1797952
checkbnr_i 1981200
checknf 89472893
checknf_i 92652859
checknfelt_mod 614794
checkrnf 425525
checkrnf_i 437239
checksqmat 0
chk_gen 100461
chk_gen_init 14266
chk_gen_prec 32613
cmpii_polred 128466
complex_norm 33953321
elt_galoisapply 49
elt_galoismatrixapply 0
embed_T2 72148
embed_norm 17957263
embednorm_T2 0
factoredpolred 0
factoredpolred2 0
filter 4095
findmindisc 14273
gal_check_pol 2513
galoisapply 128841
get_Tr 85357
get_aut 8190
get_bas_den 206396
get_bnf 28525
get_bnfpol 112
get_nf 116578
get_nfindex 2597
get_nfpol 679084
get_pol 264469
get_polchar 100461
get_red_G 73940
get_roots 242725
idealfrobenius 105
idealfrobenius_aut 98
idealinertiagroup 1834
idealquasifrob 1491
idealramfrobenius 0
idealramfrobenius_aut 616
idealramgroups 126
idealramgroups_aut 2408
idealramgroupstame 1911
idealramgroupswild 497
incl_disc 539
make_G 269539
make_M 269550
make_M_G 269547
make_Tr 28810
nf_basden 91904
nf_get_allroots 0
nf_get_prec 1281167
nf_input_type 87402
nf_multable 85359
nf_multable_worker 557308
nfcertify 3367
nffp_init 177651
nfgaloismatrix 96508
nfgaloismatrixapply 13916
nfgaloispermtobasis 1379
nfinit 7311
nfinit0 11714
nfinit_basic 87404
nfinit_basic_flag 14343
nfinit_basic_partial 3920
nfinit_complete 85355
nfinitred 182
nfinitred2 0
nfisincl 112
nfisincl0 7336
nfisincl_from_fact 7224
nfisincl_from_fact_frac 1232
nfisisom 77
nfmaxord_complete 170708
nfmaxord_to_nf 85356
nfnewprec 161
nfnewprec_shallow 91876
nfpoleval 11151
nfpolred 280
nfsplitting 0
nfsplitting0 1435
nfsplitting_auto 1232
nfsplitting_composite 1421
nftyp 269871
partmap_reverse 7343
partmap_reverse_frac 8085
partmap_reverse_frac_worker 8085
polred 14
polred0 56
polred2 0
polred_aux 4130
polred_init 18361
polredabs 13426
polredabs0 14000
polredabs2 0
polredabs_i 14273
polredabsall 0
polredbest 3528
polredbest_aux 4067
polredbest_i 3885
polredord 21
poltomonic 42
pr_galoisapply 7
pr_galoismatrixapply 0
pr_make 7
prec_fix 302158
primes_certify 3367
quicktrace 393683
rawcheckbnf 51926
rawchecknf 51072
real_norm 167490
remove_duplicates 14000
rnfnewprec 0
rnfnewprec_shallow 56
rnfpolred_i 637
rnfpolredabs 280
rnfpolredbest 357
set_LLL_basis 103436
set_mulid 22708
smallpolred 0
smallpolred2 0
tests_OK 287
try_polmin 136485
tschirnhaus 7632
typv6 126511
v10checknf 217203
v11checkbnf 42749
v13checkgchar 938
v13checkrnf 426246
v9checkgal 665
vecgaloisapply 7
vecgaloismatrixapply 0
zk_galoisapplymod 6276

Generated by: LCOV version 1.16