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83e34eed87
python-modernize, format and some manual lint fixes No-Try: True Bug: None Change-Id: I89d9f97f238be887962c67e18cc6480a8f6f3ac4 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/264551 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Tomas Gunnarsson <tommi@webrtc.org> Cr-Commit-Position: refs/heads/main@{#37071}
74 lines
2.4 KiB
Python
Executable file
74 lines
2.4 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
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#
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# Use of this source code is governed by a BSD-style license
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# that can be found in the LICENSE file in the root of the source
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# tree. An additional intellectual property rights grant can be found
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# in the file PATENTS. All contributing project authors may
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# be found in the AUTHORS file in the root of the source tree.
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"""Run the tests with
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python misc_test.py
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or
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python3 misc_test.py
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"""
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from __future__ import division
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from __future__ import absolute_import
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import random
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import unittest
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from six.moves import range
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from six.moves import zip
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import misc
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class TestMisc(unittest.TestCase):
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def testUnwrapMod3(self):
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data = [0, 1, 2, 0, -1, -2, -3, -4]
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unwrapped_3 = misc.Unwrap(data, 3)
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self.assertEqual([0, 1, 2, 3, 2, 1, 0, -1], unwrapped_3)
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def testUnwrapMod4(self):
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data = [0, 1, 2, 0, -1, -2, -3, -4]
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unwrapped_4 = misc.Unwrap(data, 4)
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self.assertEqual([0, 1, 2, 0, -1, -2, -3, -4], unwrapped_4)
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def testDataShouldNotChangeAfterUnwrap(self):
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data = [0, 1, 2, 0, -1, -2, -3, -4]
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_ = misc.Unwrap(data, 4)
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self.assertEqual([0, 1, 2, 0, -1, -2, -3, -4], data)
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def testRandomlyMultiplesOfModAdded(self):
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# `unwrap` definition says only multiples of mod are added.
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random_data = [random.randint(0, 9) for _ in range(100)]
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for mod in range(1, 100):
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random_data_unwrapped_mod = misc.Unwrap(random_data, mod)
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for (old_a, a) in zip(random_data, random_data_unwrapped_mod):
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self.assertEqual((old_a - a) % mod, 0)
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def testRandomlyAgainstInequalityDefinition(self):
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# Data has to satisfy -mod/2 <= difference < mod/2 for every
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# difference between consecutive values after unwrap.
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random_data = [random.randint(0, 9) for _ in range(100)]
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for mod in range(1, 100):
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random_data_unwrapped_mod = misc.Unwrap(random_data, mod)
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for (a, b) in zip(random_data_unwrapped_mod,
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random_data_unwrapped_mod[1:]):
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self.assertTrue(-mod / 2 <= b - a < mod / 2)
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def testRandomlyDataShouldNotChangeAfterUnwrap(self):
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random_data = [random.randint(0, 9) for _ in range(100)]
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random_data_copy = random_data[:]
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for mod in range(1, 100):
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_ = misc.Unwrap(random_data, mod)
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self.assertEqual(random_data, random_data_copy)
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if __name__ == "__main__":
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unittest.main()
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