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 30711-c92306d4b4) Lines: 644 707 91.1 %
Date: 2026-02-25 09:24:21 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 3955214
BPSW_isprime_small 3975431
BPSW_psp 48886161
BPSW_psp_nosmalldiv 46602
BPSW_try_PL 1482
LucasMod 28454
MR_Jaeschke 7351
PL_certificate 3045
PL_certify 531
PL_isvalid 84
PRIMES_interval 21336
PRIMES_search 57300827
Z_isanypower_nosmalldiv 40820
_isprimePL 42
_uisprime 8622727
_uispsp 293209
addp 189
addp_union 56
addprimes 189
cert_type 98
check_ecppcert 56
check_ecppcertentry 392
cleanprimetab 21
get_disc 1136560
gisprime 37458785
gispseudoprime 14
gprimepi_lower_bound 1
gprimepi_upper_bound 1
init_MR_Jaeschke 561
is2psp 145014
is_2_prp_101 0
islucaspsp 28454
isprime 38184504
isprimePL 2982
ispseudoprime 0
ispsp 994
iu_coprime 438998
millerrabin 28
pari_set_primetab 373303
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 457115
primes 105
primes0 238
primes_interval 238
primes_interval_i 79
primes_interval_zv 14513
primes_upto_zv 7056
primes_zv 91
randomprime 91
randomprime0 154
removeprimes 28
rmprime 28
rmprimes 28
u_LucasMod_pre 1136759
uis2psp 0
uislucaspsp 0
uislucaspsp_pre 1136564
uisprime 74992184
uisprime_101 16487
uisprime_661 29919
uispsp 405120
uispsp_pre 8625614
uprime 0
uprimepi 9259560

Generated by: LCOV version 1.16