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 30822-5d69697d32) Lines: 679 711 95.5 %
Date: 2026-04-17 09:24:44 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 2361
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 112951
quad_be_honest 122168
get_clgp 122178
nthidealquad 122178
compute_invresquad 122187
trivial_relations 122192
subFBquad 122279
FBquad 122287
Buchquad_i 122384
sub_fact 149750
qfr3_pf 159390
get_R 159709
qfr3_random 161567
powsubFBquad 171767
imag_relations 175606
dist 184688
dist_set 184688
qfr5_factorback 197015
qfr5_pf 217588
qfr5_rho_pow 220157
qfi_factorback 263685
clearhash 294026
GRH_ensure 454704
is_bad 688075
QFR3_comp 1007545
qfr3_canon 1166963
QFR5_comp 1735160
quadGRHchk 1807201
qfr5_canon 1952748
cache_prime_quad 2051638
add_fact 3103293
largeprime 3470832
hash 3470868
qfi_random 5503725
random_form 5665314
init_form 6126764
Z_isquasismooth_prod 7090716
factorquad 7097206
QFI_comp 16465826

Generated by: LCOV version 1.16