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 - random.c (source / functions) Coverage Total Hit
Test: PARI/GP v2.18.1 lcov report (development 31041-bd73e9fcdd) Lines: 99.4 % 162 161
Test Date: 2026-07-22 22:45:42 Functions: 100.0 % 17 17
Legend: Lines:     hit not hit

Function Name Sort by function name Hit count Sort by function hit count
random_zv 59
randomr 4473
pari_rand 94984
setrand 110704
polrandom 156772
pari_init_rand 378486
init_xor4096i 440916
_32to64 448111
random_F2x 546425
getrand 1458690
randomi 2883010
genrand 5592018
_64to32 13724897
random_bits 23997516
random_Fl 40370307
rand64 82812382
block 193822188

Generated by: LCOV version 2.0-1