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140 lines
5.3 KiB
Python
140 lines
5.3 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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# Stegano - Stegano is a pure Python steganography module.
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# Copyright (C) 2010-2019 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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"""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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"""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_eratosthenes(self):
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"""Test the Eratosthenes sieve.
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"""
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with open('./tests/expected-results/eratosthenes', 'r') as f:
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self.assertEqual(tuple(itertools.islice(generators.eratosthenes(), 168)),
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tuple(int(line) for line in f))
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def test_composite(self):
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"""Test the composite sieve.
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"""
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with open('./tests/expected-results/composite', 'r') as f:
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self.assertEqual(tuple(itertools.islice(generators.composite(), 114)),
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tuple(int(line) for line in f))
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def test_fermat(self):
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"""Test the Fermat generator.
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"""
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with open('./tests/expected-results/fermat', 'r') as f:
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self.assertEqual(tuple(itertools.islice(generators.fermat(), 9)),
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tuple(int(line) for line in f))
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def test_triangular_numbers(self):
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"""Test the Triangular numbers generator.
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"""
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with open('./tests/expected-results/triangular_numbers', 'r') as f:
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self.assertEqual(tuple(itertools.islice(generators.triangular_numbers(), 54)),
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tuple(int(line) for line in f))
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def test_mersenne(self):
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"""Test the Mersenne generator.
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"""
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with open('./tests/expected-results/mersenne', 'r') as f:
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self.assertEqual(tuple(itertools.islice(generators.mersenne(), 20)),
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tuple(int(line) for line in f))
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def test_carmichael(self):
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"""Test the Carmichael generator.
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"""
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with open('./tests/expected-results/carmichael', 'r') as f:
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self.assertEqual(tuple(itertools.islice(generators.carmichael(), 33)),
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tuple(int(line) for line in f))
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def test_ackermann_slow(self):
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"""Test the Ackermann set.
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"""
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with open('./tests/expected-results/ackermann', 'r') as f:
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self.assertEqual(generators.ackermann_slow(
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3, 1), int(f.readline()))
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self.assertEqual(generators.ackermann_slow(
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3, 2), int(f.readline()))
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def test_ackermann_naive(self):
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"""Test the Naive Ackermann generator
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"""
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gen = generators.ackermann_naive(3)
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next(gen)
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with open('./tests/expected-results/ackermann', 'r') as f:
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self.assertEqual(next(gen), int(f.readline()))
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self.assertEqual(next(gen), int(f.readline()))
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def test_ackermann_fast(self):
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"""Test the Ackermann set.
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"""
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with open('./tests/expected-results/ackermann', 'r') as f:
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self.assertEqual(generators.ackermann_fast(
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3, 1), int(f.readline()))
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self.assertEqual(generators.ackermann_fast(
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3, 2), int(f.readline()))
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self.assertEqual(generators.ackermann_fast(
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4, 1), int(f.readline()))
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self.assertEqual(generators.ackermann_fast(
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4, 2), int(f.readline()))
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def test_ackermann(self):
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"""Test the Ackermann generator
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"""
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gen = generators.ackermann(3)
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next(gen)
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with open('./tests/expected-results/ackermann', 'r') as f:
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self.assertEqual(next(gen), int(f.readline()))
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self.assertEqual(next(gen), int(f.readline()))
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def test_LFSR(self):
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""" Test the LFSR generator
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"""
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with open('./tests/expected-results/LFSR', 'r') as f:
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self.assertEqual(tuple(itertools.islice(generators.LFSR(2**8), 256)),
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tuple(int(line) for line in f))
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if __name__ == '__main__':
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unittest.main()
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