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 - language - forprime.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30367-364c17a628) Lines: 454 520 87.3 %
Date: 2025-07-03 09:21:30 Functions: 39 41 95.1 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
maxprime_check 0
set_optimize 0
u_forprime_restrict 63
forcomposite 70
forcomposite_init 70
maxprimeN 196
forcomposite_next 238
forprime 966
forprimestep 1092
forprime_init 1315
ZV_copy_alloc 1890
ZV_size 1890
good_arena_size 1890
initprimes 1890
initprimes0 1890
initprimes1 1890
initprimetable 1890
pari_close_primes 1890
pari_init_primes 1890
pari_sieve_init 1890
set_prodprimes 1890
forprimestep_init 2427
sieve_chunk 7242
sieve_block 9163
arith_set 102080
prodprimes 932860
prodprimeslim 932860
init_modular_small 4600116
u_forprime_sieve_init 5523331
u_forprime_set_prime_table 8368870
optimize_chunk 8922607
sieve_init 8922609
init_modular_big 11047515
u_forprime_init 18219386
u_forprime_arith_init 18825998
u_forprime_sieve_arith_init 24349235
maxprime 34510826
forprime_next 45413399
maxprimelim 74854994
shift_cache 130273092
u_forprime_next 205736331

Generated by: LCOV version 1.16