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# Copyright 2010 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import unittest
import genbackupdatalib
class DataGeneratorTests(unittest.TestCase):
def setUp(self):
self.g1 = genbackupdatalib.DataGenerator(0)
self.g2 = genbackupdatalib.DataGenerator(0)
def test_every_generator_returns_same_sequence(self):
amount = 1024
self.assertEqual(self.g1.generate(amount), self.g2.generate(amount))
def test_returns_different_sequence_for_different_seed(self):
amount = 1024
g3 = genbackupdatalib.DataGenerator(1)
self.assertNotEqual(self.g1.generate(amount), g3.generate(amount))
def test_returns_distinct_64k_chunks(self):
size = 64 * 1024
chunk1 = self.g1.generate(size)
num_chunks = 100
for i in range(num_chunks):
self.assertNotEqual(self.g1.generate(size), chunk1)
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