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 30674-be81ecfdd4) Lines: 679 711 95.5 %
Date: 2026-02-11 09:23:10 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 2350
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 61173
quad_be_honest 70429
get_clgp 70432
nthidealquad 70432
compute_invresquad 70445
trivial_relations 70446
subFBquad 70522
FBquad 70523
Buchquad_i 70606
get_R 91743
sub_fact 98197
imag_relations 99139
powsubFBquad 99277
qfr3_pf 159390
qfi_factorback 160583
qfr3_random 161567
clearhash 169784
dist 184688
dist_set 184688
qfr5_factorback 197015
qfr5_pf 217588
qfr5_rho_pow 220157
is_bad 392228
GRH_ensure 402224
QFR3_comp 1007545
quadGRHchk 1034425
qfr3_canon 1166963
cache_prime_quad 1175365
QFR5_comp 1735160
add_fact 1893257
qfr5_canon 1952748
largeprime 2565404
hash 2565434
qfi_random 3542735
random_form 3704310
init_form 4062233
Z_isquasismooth_prod 5030870
factorquad 5037272
QFI_comp 11742673

Generated by: LCOV version 1.16