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 - prime.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30370-b9c4b6d044) Lines: 644 707 91.1 %
Date: 2025-07-05 09:22:59 Functions: 71 77 92.2 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
is_2_prp_101 0
ispseudoprime 0
primecert 0
uis2psp 0
uislucaspsp 0
uprime 0
gprimepi_lower_bound 1
gprimepi_upper_bound 1
gispseudoprime 14
primepi_lower_bound 14
cleanprimetab 21
millerrabin 28
removeprimes 28
rmprime 28
rmprimes 28
_isprimePL 42
primecertexport 49
addp_union 56
check_ecppcert 56
prime_successor 56
primecertisvalid 56
primes_interval_i 79
PL_isvalid 84
primecert0 84
primes_zv 91
randomprime 91
prime_table_closest_p 97
cert_type 98
primes 105
prime_interval 147
randomprime0 154
addp 189
addprimes 189
primes0 231
primes_interval 231
primepi 252
prime_table_find_n 273
prime 280
primes_upto_zv 336
check_ecppcertentry 392
PL_certify 531
init_MR_Jaeschke 557
BLS_test 560
ispsp 990
BPSW_try_PL 1482
pl831 2734
isprimePL 2982
PL_certificate 3045
primecertPL 3066
MR_Jaeschke 7323
primes_interval_zv 14523
PRIMES_interval 14633
uisprime_101 16487
LucasMod 28529
islucaspsp 28529
uisprime_661 29150
Z_isanypower_nosmalldiv 45052
BPSW_psp_nosmalldiv 51782
is2psp 149907
_uispsp 259270
pari_set_primetab 342447
uispsp 360942
primepi_upper_bound 404990
iu_coprime 438438
get_disc 1134243
uislucaspsp_pre 1134248
u_LucasMod_pre 1134468
BPSW_isprime 3918656
BPSW_isprime_small 3938615
uispsp_pre 8569045
_uisprime 8575393
uprimepi 8940937
gisprime 36953430
isprime 37679300
BPSW_psp 48352926
PRIMES_search 55979731
uisprime 74619232

Generated by: LCOV version 1.16