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# Copyright 2013-2018 Donald Stufft and individual contributors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
from typing import Callable, Dict, List, Optional, Tuple
import pytest
def assert_equal(x: object, y: object) -> None:
assert x == y
assert not (x != y)
def assert_not_equal(x: object, y: object) -> None:
assert x != y
assert not (x == y)
def read_crypto_test_vectors(
fname: str, maxels: int = 0, delimiter: Optional[bytes] = None
) -> List[Tuple[bytes, ...]]:
assert delimiter is not None and isinstance(delimiter, bytes)
vectors = []
path = os.path.join(os.path.dirname(__file__), "data", fname)
with open(path, "rb") as fp:
for line in fp:
line = line.rstrip()
if line and line[0] != b"#"[0]:
splt = [x for x in line.split(delimiter)]
if maxels:
splt = splt[:maxels]
vectors.append(tuple(splt))
return vectors
def read_kv_test_vectors(
fname: str,
delimiter: Optional[bytes] = None,
newrecord: Optional[bytes] = None,
) -> List[Dict[str, bytes]]:
assert delimiter is not None and isinstance(delimiter, bytes)
assert newrecord is not None and isinstance(newrecord, bytes)
vectors = []
path = os.path.join(os.path.dirname(__file__), "data", fname)
vector: Dict[str, bytes] = {}
with open(path, "rb") as fp:
for line in fp:
line = line.rstrip()
if line and line[0] != b"#"[0]:
[k, v] = line.split(delimiter, 1)
k, v = k.strip(), v.strip()
if k == newrecord and k.decode("utf-8") in vector:
vectors.append(vector)
vector = {}
vector[k.decode("utf-8")] = v
vectors.append(vector)
return vectors
def flip_byte(original: bytes, byte_offset: int) -> bytes:
return (
original[:byte_offset]
+ bytes([0x01 ^ original[byte_offset]])
+ original[byte_offset + 1 :]
)
# Type safety: it's fine to use `...` here, but mypy config doesn't like it because it's
# an explict `Any`.
def check_type_error( # type: ignore[misc]
expected: str, f: Callable[..., object], *args: object
) -> None:
with pytest.raises(TypeError) as e:
f(*args)
assert expected in str(e.value)
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