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 30532-0c728fd268) Lines: 643 707 90.9 %
Date: 2025-10-20 09:22:51 Functions: 71 77 92.2 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
BLS_test 560
BPSW_isprime 3952646
BPSW_isprime_small 3973106
BPSW_psp 48774578
BPSW_psp_nosmalldiv 51775
BPSW_try_PL 1482
LucasMod 28550
MR_Jaeschke 7351
PL_certificate 3045
PL_certify 531
PL_isvalid 84
PRIMES_interval 14633
PRIMES_search 56973301
Z_isanypower_nosmalldiv 45116
_isprimePL 42
_uisprime 8586351
_uispsp 256528
addp 189
addp_union 56
addprimes 189
cert_type 98
check_ecppcert 56
check_ecppcertentry 392
cleanprimetab 21
get_disc 1136049
gisprime 37383882
gispseudoprime 14
gprimepi_lower_bound 1
gprimepi_upper_bound 1
init_MR_Jaeschke 558
is2psp 150169
is_2_prp_101 0
islucaspsp 28550
isprime 38102272
isprimePL 2982
ispseudoprime 0
ispsp 991
iu_coprime 438951
millerrabin 28
pari_set_primetab 342704
pl831 2734
prime 280
prime_interval 147
prime_successor 56
prime_table_closest_p 97
prime_table_find_n 273
primecert 0
primecert0 84
primecertPL 3066
primecertexport 49
primecertisvalid 56
primepi 252
primepi_lower_bound 14
primepi_upper_bound 405110
primes 105
primes0 231
primes_interval 231
primes_interval_i 79
primes_interval_zv 14523
primes_upto_zv 336
primes_zv 91
randomprime 91
randomprime0 154
removeprimes 28
rmprime 28
rmprimes 28
u_LucasMod_pre 1136247
uis2psp 0
uislucaspsp 0
uislucaspsp_pre 1136055
uisprime 75103305
uisprime_101 16487
uisprime_661 28031
uispsp 358133
uispsp_pre 8581600
uprime 0
uprimepi 9087976

Generated by: LCOV version 1.16