git » libfiu » next » tree

[next] / tests / test-set_prng_seed-env.py 

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
"""
Test that we get reproducible results when setting PRNG seed via the
environment.
"""

# Set the environment variable _before_ initializing the library.
import os

os.environ["FIU_PRNG_SEED"] = "1234"

import fiu

fiu.enable_random("p1", probability=0.5)
result = {True: 0, False: 0}
for i in range(1000):
    result[fiu.fail("p1")] += 1

assert result == {False: 516, True: 484}, result