# Copyright 2013 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.

from __future__ import absolute_import, division, print_function

import pytest

import nacl.encoding
import nacl.hash


@pytest.mark.parametrize(("inp", "expected"), [
    (
        b"The quick brown fox jumps over the lazy dog.",
        b"ef537f25c895bfa782526529a9b63d97aa631564d5d789c2b765448c8635fb6c",
    ),
    (
        b"",
        b"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
    )
])
def test_sha256_hex(inp, expected):
    assert nacl.hash.sha256(inp) == expected


@pytest.mark.parametrize(("inp", "expected"), [
    (
        b"The quick brown fox jumps over the lazy dog.",
        (b"\xEFS\x7F%\xC8\x95\xBF\xA7\x82Re)\xA9\xB6=\x97\xAAc\x15d\xD5\xD7"
         b"\x89\xC2\xB7eD\x8C\x865\xFBl"),
    ),
    (
        b"",
        (b"\xe3\xb0\xc4B\x98\xfc\x1c\x14\x9a\xfb\xf4\xc8\x99o\xb9$'\xaeA\xe4d"
         b"\x9b\x93L\xa4\x95\x99\x1bxR\xb8U"),
    )
])
def test_sha256_binary(inp, expected):
    assert nacl.hash.sha256(inp, encoder=nacl.encoding.RawEncoder) == expected


@pytest.mark.parametrize(("inp", "expected"), [
    (
        b"The quick brown fox jumps over the lazy dog.",
        (b"91ea1245f20d46ae9a037a989f54f1f790f0a47607eeb8a14d12890cea77a1bbc6c"
         b"7ed9cf205e67b7f2b8fd4c7dfd3a7a8617e45f3c463d481c7e586c39ac1ed"),
    ),
    (
        b"",
        (b"cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d"
         b"0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e"),
    )
])
def test_sha512_hex(inp, expected):
    assert nacl.hash.sha512(inp) == expected


@pytest.mark.parametrize(("inp", "expected"), [
    (
        b"The quick brown fox jumps over the lazy dog.",
        (b"\x91\xEA\x12E\xF2\rF\xAE\x9A\x03z\x98\x9FT\xF1\xF7\x90\xF0\xA4v\a"
         b"\xEE\xB8\xA1M\x12\x89\f\xEAw\xA1\xBB\xC6\xC7\xED\x9C\xF2\x05\xE6{"
         b"\x7F+\x8F\xD4\xC7\xDF\xD3\xA7\xA8a~E\xF3\xC4c\xD4\x81\xC7\xE5\x86"
         b"\xC3\x9A\xC1\xED"),
    ),
    (
        b"",
        (b"\xCF\x83\xE15~\xEF\xB8\xBD\xF1T(P\xD6m\x80\a\xD6 \xE4\x05\vW\x15"
         b"\xDC\x83\xF4\xA9!\xD3l\xE9\xCEG\xD0\xD1<]\x85\xF2\xB0\xFF\x83\x18"
         b"\xD2\x87~\xEC/c\xB91\xBDGAz\x81\xA582z\xF9'\xDA>"),
    )
])
def test_sha512_binary(inp, expected):
    assert nacl.hash.sha512(inp, encoder=nacl.encoding.RawEncoder) == expected