49 lines
1.8 KiB
Python
49 lines
1.8 KiB
Python
# -*- coding:utf-8 -*-
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#
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# Copyright 2015 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import unittest
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import mock
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from anchor import util
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class UtilTests(unittest.TestCase):
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@mock.patch('hmac.compare_digest', create=True)
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def test_compare_with_hmac(self, compare_digest):
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compare_digest.return_value = True
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self.assertTrue(util.constant_time_compare("", ""))
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@mock.patch('hmac.compare_digest', create=True)
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def test_compare_with_shim_eq(self, compare_digest):
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compare_digest.side_effect = AttributeError(
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"'hmac' has no attribute 'compare_digest'")
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self.assertTrue(util.constant_time_compare("abc", "abc"))
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@mock.patch('hmac.compare_digest', create=True)
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def test_compare_with_shim_ne(self, compare_digest):
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compare_digest.side_effect = AttributeError(
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"'hmac' has no attribute 'compare_digest'")
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self.assertFalse(util.constant_time_compare("abc", "def"))
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@mock.patch('hmac.compare_digest', create=True)
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def test_compare_with_shim_different_len(self, compare_digest):
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compare_digest.side_effect = AttributeError(
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"'hmac' has no attribute 'compare_digest'")
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self.assertFalse(util.constant_time_compare("abc", ""))
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