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 - buch1.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30816-9c15a02229) Lines: 679 711 95.5 %
Date: 2026-04-15 09:25:30 Functions: 52 56 92.9 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
GRH_last_prime 0
buchimag 0
buchreal 0
dbg_all 0
imag_be_honest 7
real_be_honest 7
mpqs_relations 336
bnf_increase_LIMC 2358
qfr3_canon_safe 3710
Buchquad 4424
quadclassunit0 4424
quadclassnos 5008
real_relations 5145
rel_to_col 8813
isless_iu 10416
gcdreal 33978
crabs 55146
quadclassno 112955
quad_be_honest 122166
nthidealquad 122175
get_clgp 122178
compute_invresquad 122191
trivial_relations 122192
subFBquad 122282
FBquad 122287
Buchquad_i 122392
sub_fact 150025
qfr3_pf 159390
get_R 159888
qfr3_random 161567
powsubFBquad 171959
imag_relations 175831
dist 184688
dist_set 184688
qfr5_factorback 197015
qfr5_pf 217588
qfr5_rho_pow 220157
qfi_factorback 263860
clearhash 294214
GRH_ensure 454718
is_bad 688067
QFR3_comp 1007545
qfr3_canon 1166963
QFR5_comp 1735160
quadGRHchk 1807211
qfr5_canon 1952748
cache_prime_quad 2051666
add_fact 3103693
largeprime 3471462
hash 3471561
qfi_random 5504755
random_form 5666351
init_form 6127844
Z_isquasismooth_prod 7090421
factorquad 7096675
QFI_comp 16466716

Generated by: LCOV version 1.16