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 30401-87099e65a6) Lines: 644 707 91.1 %
Date: 2025-07-18 09:23:12 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 45104
BPSW_psp_nosmalldiv 51833
is2psp 149895
_uispsp 258625
pari_set_primetab 343163
uispsp 360267
primepi_upper_bound 405008
iu_coprime 438140
get_disc 1135545
uislucaspsp_pre 1135546
u_LucasMod_pre 1135738
BPSW_isprime 3946675
BPSW_isprime_small 3967110
uispsp_pre 8578007
_uisprime 8584245
uprimepi 9084690
gisprime 37238648
isprime 37960901
BPSW_psp 48630290
PRIMES_search 56229037
uisprime 74952530

Generated by: LCOV version 1.16