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# Copyright 2016 Google Inc. All rights reserved.
#
# 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 unittest
import mock
from oauth2client import _pkce
class PKCETests(unittest.TestCase):
@mock.patch('oauth2client._pkce.os.urandom')
def test_verifier(self, fake_urandom):
canned_randomness = (
b'\x98\x10D7\xf3\xb7\xaa\xfc\xdd\xd3M\xe2'
b'\xa3,\x06\xa0\xb0\xa9\xb4\x8f\xcb\xd0'
b'\xf5\x86N2p\x8c]!W\x9a\xed54\x99\x9d'
b'\x8dv\\\xa7/\x81\xf3J\x98\xc3\x90\xee'
b'\xb0\x8c\xb7Zc#\x05M0O\x08\xda\t\x1f\x07'
)
fake_urandom.return_value = canned_randomness
expected = (
b'mBBEN_O3qvzd003ioywGoLCptI_L0PWGTjJwjF0hV5rt'
b'NTSZnY12XKcvgfNKmMOQ7rCMt1pjIwVNME8I2gkfBw'
)
result = _pkce.code_verifier()
self.assertEqual(result, expected)
def test_verifier_too_long(self):
with self.assertRaises(ValueError) as caught:
_pkce.code_verifier(97)
self.assertIn("too long", str(caught.exception))
def test_verifier_too_short(self):
with self.assertRaises(ValueError) as caught:
_pkce.code_verifier(30)
self.assertIn("too short", str(caught.exception))
def test_challenge(self):
result = _pkce.code_challenge(b'SOME_VERIFIER')
expected = b'6xJCQsjTtS3zjUwd8_ZqH0SyviGHnp5PsHXWKOCqDuI'
self.assertEqual(result, expected)
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