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# Copyright (c) Frederick Dean
# See LICENSE for details.
"""
Unit tests for `OpenSSL.rand`.
"""
import pytest
from OpenSSL import rand
class TestRand(object):
@pytest.mark.parametrize('args', [
(b"foo", None),
(None, 3),
])
def test_add_wrong_args(self, args):
"""
`OpenSSL.rand.add` raises `TypeError` if called with arguments not of
type `str` and `int`.
"""
with pytest.raises(TypeError):
rand.add(*args)
def test_add(self):
"""
`OpenSSL.rand.add` adds entropy to the PRNG.
"""
rand.add(b'hamburger', 3)
def test_status(self):
"""
`OpenSSL.rand.status` returns `1` if the PRNG has sufficient entropy,
`0` otherwise.
"""
assert rand.status() == 1
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