2023-08-01 23:15:00 +02:00
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"""Tests for structures"""
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2021-08-01 18:57:30 +02:00
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import unittest
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import struct
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from binascii import unhexlify
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from minode import structure
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class TestStructure(unittest.TestCase):
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"""Testing structures serializing and deserializing"""
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def test_varint(self):
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"""Test varint serializing and deserializing"""
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s = structure.VarInt(0)
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self.assertEqual(s.to_bytes(), b'\x00')
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s = structure.VarInt.from_bytes(b'\x00')
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self.assertEqual(s.n, 0)
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s = structure.VarInt(42)
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self.assertEqual(s.to_bytes(), b'*')
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s = structure.VarInt.from_bytes(b'*')
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self.assertEqual(s.n, 42)
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s = structure.VarInt(252)
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self.assertEqual(s.to_bytes(), unhexlify('fc'))
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s = structure.VarInt.from_bytes(unhexlify('fc'))
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self.assertEqual(s.n, 252)
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s = structure.VarInt(253)
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self.assertEqual(s.to_bytes(), unhexlify('fd00fd'))
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s = structure.VarInt.from_bytes(unhexlify('fd00fd'))
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self.assertEqual(s.n, 253)
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s = structure.VarInt(100500)
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self.assertEqual(s.to_bytes(), unhexlify('fe00018894'))
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s = structure.VarInt.from_bytes(unhexlify('fe00018894'))
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self.assertEqual(s.n, 100500)
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s = structure.VarInt(65535)
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self.assertEqual(s.to_bytes(), unhexlify('fdffff'))
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s = structure.VarInt.from_bytes(unhexlify('fdffff'))
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self.assertEqual(s.n, 65535)
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s = structure.VarInt(4294967295)
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self.assertEqual(s.to_bytes(), unhexlify('feffffffff'))
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s = structure.VarInt.from_bytes(unhexlify('feffffffff'))
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self.assertEqual(s.n, 4294967295)
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s = structure.VarInt(4294967296)
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self.assertEqual(s.to_bytes(), unhexlify('ff0000000100000000'))
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s = structure.VarInt.from_bytes(unhexlify('ff0000000100000000'))
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self.assertEqual(s.n, 4294967296)
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s = structure.VarInt(18446744073709551615)
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self.assertEqual(s.to_bytes(), unhexlify('ffffffffffffffffff'))
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s = structure.VarInt.from_bytes(unhexlify('ffffffffffffffffff'))
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self.assertEqual(s.n, 18446744073709551615)
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def test_address(self):
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"""Check address encoding in structure.NetAddrNoPrefix()"""
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addr = structure.NetAddrNoPrefix(1, '127.0.0.1', 8444)
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self.assertEqual(
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addr.to_bytes()[8:24],
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b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xFF\xFF'
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+ struct.pack('>L', 2130706433))
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addr = structure.NetAddrNoPrefix(1, '191.168.1.1', 8444)
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self.assertEqual(
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addr.to_bytes()[8:24],
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unhexlify('00000000000000000000ffffbfa80101'))
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addr = structure.NetAddrNoPrefix(1, '1.1.1.1', 8444)
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self.assertEqual(
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addr.to_bytes()[8:24],
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unhexlify('00000000000000000000ffff01010101'))
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addr = structure.NetAddrNoPrefix(
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1, '0102:0304:0506:0708:090A:0B0C:0D0E:0F10', 8444)
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self.assertEqual(
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addr.to_bytes()[8:24],
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unhexlify('0102030405060708090a0b0c0d0e0f10'))
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