python-fido2/test/test_utils.py

119 lines
4.4 KiB
Python

# coding=utf-8
# Copyright (c) 2013 Yubico AB
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or
# without modification, are permitted provided that the following
# conditions are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
import unittest
from binascii import a2b_hex
from threading import Event
from fido_host.utils import (
Timeout,
hmac_sha256,
sha256,
websafe_encode,
websafe_decode
)
class TestSha256(unittest.TestCase):
def test_sha256_vectors(self):
self.assertEqual(sha256(b'abc'), a2b_hex(b'ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad')) # noqa
self.assertEqual(sha256(b'abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq'), a2b_hex(b'248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1')) # noqa
class TestHmacSha256(unittest.TestCase):
def test_hmac_sha256_vectors(self):
self.assertEqual(hmac_sha256(
b'\x0b'*20,
b'Hi There'
), a2b_hex(b'b0344c61d8db38535ca8afceaf0bf12b881dc200c9833da726e9376c2e32cff7')) # noqa
self.assertEqual(hmac_sha256(
b'Jefe',
b'what do ya want for nothing?'
), a2b_hex(b'5bdcc146bf60754e6a042426089575c75a003f089d2739839dec58b964ec3843')) # noqa
class TestWebSafe(unittest.TestCase):
# Base64 vectors adapted from https://tools.ietf.org/html/rfc4648#section-10
def test_websafe_decode(self):
self.assertEqual(websafe_decode(b''), b'')
self.assertEqual(websafe_decode(b'Zg'), b'f')
self.assertEqual(websafe_decode(b'Zm8'), b'fo')
self.assertEqual(websafe_decode(b'Zm9v'), b'foo')
self.assertEqual(websafe_decode(b'Zm9vYg'), b'foob')
self.assertEqual(websafe_decode(b'Zm9vYmE'), b'fooba')
self.assertEqual(websafe_decode(b'Zm9vYmFy'), b'foobar')
def test_websafe_decode_unicode(self):
self.assertEqual(websafe_decode(u''), b'')
self.assertEqual(websafe_decode(u'Zm9vYmFy'), b'foobar')
def test_websafe_encode(self):
self.assertEqual(websafe_encode(b''), u'')
self.assertEqual(websafe_encode(b'f'), u'Zg')
self.assertEqual(websafe_encode(b'fo'), u'Zm8')
self.assertEqual(websafe_encode(b'foo'), u'Zm9v')
self.assertEqual(websafe_encode(b'foob'), u'Zm9vYg')
self.assertEqual(websafe_encode(b'fooba'), u'Zm9vYmE')
self.assertEqual(websafe_encode(b'foobar'), u'Zm9vYmFy')
def test_websafe_encode_unicode(self):
self.assertEqual(websafe_encode(u''), u'')
self.assertEqual(websafe_encode(u'foobar'), u'Zm9vYmFy')
class TestTimeout(unittest.TestCase):
def test_event(self):
event = Event()
timeout = Timeout(event)
self.assertIsNone(timeout.timer)
with timeout as e:
self.assertIs(event, e)
self.assertFalse(e.is_set())
self.assertFalse(event.is_set())
def test_timer_stops(self):
timeout = Timeout(10)
self.assertFalse(timeout.timer.is_alive())
with timeout as e:
self.assertTrue(timeout.timer.is_alive())
self.assertFalse(e.is_set())
self.assertFalse(timeout.timer.is_alive())
self.assertFalse(e.is_set())
def test_timer_triggers(self):
with Timeout(0.01) as e:
self.assertTrue(e.wait(0.02))
self.assertTrue(e.is_set())