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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.
from __future__ import absolute_import, division, print_function
import pytest
import six
from cryptography.hazmat.primitives import constant_time
class TestConstantTimeBytesEq(object):
def test_reject_unicode(self):
with pytest.raises(TypeError):
constant_time.bytes_eq(b"foo", six.u("foo"))
with pytest.raises(TypeError):
constant_time.bytes_eq(six.u("foo"), b"foo")
with pytest.raises(TypeError):
constant_time.bytes_eq(six.u("foo"), six.u("foo"))
def test_compares(self):
assert constant_time.bytes_eq(b"foo", b"foo") is True
assert constant_time.bytes_eq(b"foo", b"bar") is False
assert constant_time.bytes_eq(b"foobar", b"foo") is False
assert constant_time.bytes_eq(b"foo", b"foobar") is False
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