Eos/eos/psgjjr/tests.py

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# Eos - Verifiable elections
# Copyright © 2017 RunasSudo (Yingtong Li)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from eos.core.tests import *
from eos.core.bigint import *
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from eos.psgjjr.bitstream import *
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from eos.psgjjr.crypto import *
class EGTestCase(EosTestCase):
def test_eg(self):
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pt = DEFAULT_GROUP.random_element()
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sk = EGPrivateKey.generate()
ct = sk.public_key.encrypt(pt)
m = sk.decrypt(ct)
self.assertEqualJSON(pt, m)
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class BitStreamTestCase(EosTestCase):
def test_bitstream(self):
bs = BitStream(BigInt('100101011011', 2))
self.assertEqual(bs.read(4), 0b1001)
self.assertEqual(bs.read(4), 0b0101)
self.assertEqual(bs.read(4), 0b1011)
bs = BitStream()
bs.write(BigInt('100101011011', 2))
bs.seek(0)
self.assertEqual(bs.read(4), 0b1001)
self.assertEqual(bs.read(4), 0b0101)
self.assertEqual(bs.read(4), 0b1011)
bs.seek(4)
bs.write(BigInt('11', 2))
bs.seek(0)
self.assertEqual(bs.read(4), 0b1001)
self.assertEqual(bs.read(4), 0b1101)
self.assertEqual(bs.read(4), 0b0110)
self.assertEqual(bs.read(2), 0b11)