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from __future__ import annotations
import random
from collections import Counter
import pytest
from distributed.compatibility import randbytes
def test_randbytes():
with pytest.warns(
DeprecationWarning,
match=r"randbytes is deprecated and will be removed in a future release; "
r"use random\.randbytes instead\.",
):
x = randbytes(256_000)
assert isinstance(x, bytes)
assert len(x) == 256_000
c = Counter(x)
for i in range(256):
assert 800 < c[i] < 1200, (i, c[i])
def test_randbytes_seed():
state = random.getstate()
try:
random.seed(0)
with pytest.warns(
DeprecationWarning,
match=r"randbytes is deprecated and will be removed in a future release; "
r"use random\.randbytes instead\.",
):
assert randbytes(8) == b"\xcd\x07,\xd8\xbeo\x9fb"
finally:
random.setstate(state)
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