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84 lines
3.2 KiB
Python
84 lines
3.2 KiB
Python
#!/usr/bin/env python
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#-*- coding: utf-8 -*-
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# Stéganô - Stéganô is a basic Python Steganography module.
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# Copyright (C) 2010-2017 Cédric Bonhomme - https://www.cedricbonhomme.org
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#
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# For more information : https://github.com/cedricbonhomme/Stegano
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>
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__author__ = "Cedric Bonhomme"
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__version__ = "$Revision: 0.1 $"
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__date__ = "$Date: 2017/03/01 $"
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__revision__ = "$Date: 2017/03/01 $"
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__license__ = "GPLv3"
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import unittest
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import itertools
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from stegano.lsbset import generators
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class TestGenerators(unittest.TestCase):
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def test_identity(self):
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"""
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Test the identity generator.
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"""
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self.assertEqual(tuple(itertools.islice(generators.identity(), 15)),
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(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14))
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def test_fibonacci(self):
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"""
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Test the Fibonacci generator.
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"""
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self.assertEqual(tuple(itertools.islice(generators.fibonacci(), 20)),
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(1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610,
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987, 1597, 2584, 4181, 6765, 10946))
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def test_fermat(self):
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"""
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Test the Fermat generator.
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"""
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self.assertEqual(tuple(itertools.islice(generators.fermat(), 9)),
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(3, 5, 17, 257, 65537, 4294967297, 18446744073709551617,
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340282366920938463463374607431768211457,
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115792089237316195423570985008687907853269984665640564039457584007913129639937))
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def test_triangular_numbers(self):
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"""
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Test the Triangular numbers generator.
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"""
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self.assertEqual(tuple(itertools.islice(generators.triangular_numbers(), 54)),
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(0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91,
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105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300,
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325, 351, 378, 406, 435, 465, 496, 528, 561, 595, 630,
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666, 703, 741, 780, 820, 861, 903, 946, 990, 1035, 1081,
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1128, 1176, 1225, 1275, 1326, 1378, 1431))
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# def test_mersenne(self):
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# """
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# Test the Mersenne generator.
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# """
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# self.assertEqual(tuple(itertools.islice(generators.mersenne(), 20)),
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# (3, 7, 31, 127, 2047, 8191, 131071, 524287, 8388607,
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# 536870911, 2147483647, 137438953471, 2199023255551,
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# 8796093022207, 140737488355327, 9007199254740991,
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# 576460752303423487, 2305843009213693951,
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# 147573952589676412927, 2361183241434822606847))
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if __name__ == '__main__':
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unittest.main()
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