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 30605-980f9eb85c) Lines: 679 711 95.5 %
Date: 2026-01-11 09:21:30 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 2348
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 61174
nthidealquad 70431
quad_be_honest 70432
get_clgp 70433
trivial_relations 70446
compute_invresquad 70447
subFBquad 70522
FBquad 70524
Buchquad_i 70606
get_R 91843
sub_fact 98233
imag_relations 99264
powsubFBquad 99427
qfr3_pf 159390
qfi_factorback 160669
qfr3_random 161567
clearhash 169937
dist 184688
dist_set 184688
qfr5_factorback 197015
qfr5_pf 217588
qfr5_rho_pow 220157
is_bad 392238
GRH_ensure 402228
QFR3_comp 1007545
quadGRHchk 1034483
qfr3_canon 1166963
cache_prime_quad 1175440
QFR5_comp 1735160
add_fact 1893695
qfr5_canon 1952748
hash 2566228
largeprime 2566230
qfi_random 3543808
random_form 3705381
init_form 4063389
Z_isquasismooth_prod 5031841
factorquad 5038265
QFI_comp 11745067

Generated by: LCOV version 1.16