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import pytest
from itsdangerous.encoding import base64_decode
from itsdangerous.encoding import base64_encode
from itsdangerous.encoding import bytes_to_int
from itsdangerous.encoding import int_to_bytes
from itsdangerous.encoding import want_bytes
from itsdangerous.exc import BadData
@pytest.mark.parametrize("value", ("mañana", b"tomorrow"))
def test_want_bytes(value):
out = want_bytes(value)
assert isinstance(out, bytes)
@pytest.mark.parametrize("value", ("無限", b"infinite"))
def test_base64(value):
enc = base64_encode(value)
assert isinstance(enc, bytes)
dec = base64_decode(enc)
assert dec == want_bytes(value)
def test_base64_bad():
with pytest.raises(BadData):
base64_decode("12345")
@pytest.mark.parametrize(
("value", "expect"), ((0, b""), (192, b"\xc0"), (18446744073709551615, b"\xff" * 8))
)
def test_int_bytes(value, expect):
enc = int_to_bytes(value)
assert enc == expect
dec = bytes_to_int(enc)
assert dec == value
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