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 30625-1bbc371a2f) Lines: 1734 1830 94.8 %
Date: 2026-01-23 09:24:12 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 7628
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 11714
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 22707
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 72149
get_red_G 73892
nfinit_complete 85305
nfmaxord_to_nf 85309
get_Tr 85311
nf_multable 85311
nf_input_type 87337
nfinit_basic 87340
ZX_canon_neg 89776
nfnewprec_shallow 91809
nf_basden 91837
QX_table_nfpoleval 96143
ZC_galoisapply 96359
nfgaloismatrix 96459
chk_gen 100463
get_polchar 100463
set_LLL_basis 103391
get_nf 116578
typv6 126511
galoisapply 127575
cmpii_polred 128468
try_polmin 136486
real_norm 167486
nfmaxord_complete 170616
nffp_init 177553
get_bas_den 206302
v10checknf 217203
get_roots 242561
get_pol 264474
make_G 269382
make_M_G 269382
make_M 269383
nftyp 269871
prec_fix 301996
quicktrace 393556
checkrnf 425525
v13checkrnf 426246
checkrnf_i 437239
nf_multable_worker 557003
checknfelt_mod 618741
get_nfpol 678703
ZX_Q_normalize 842750
ZX_primitive_to_monic 843072
ZX_Z_normalize 845746
nf_get_prec 1281284
checkbid 1521439
checkbid_i 1791349
checkbnr 1797948
checkbnr_i 1981196
checkbnf 3391307
checkbnf_i 5390295
ZX_Q_mul 6683490
embed_norm 17957579
complex_norm 33955431
checknf 89463205
checknf_i 92643263

Generated by: LCOV version 1.16