"""Tests for messages""" import unittest from binascii import unhexlify from minode import message from minode.shared import magic_bytes # 500 identical peers: # import ipaddress # from hyperbit import net, packet # [packet.Address( # 1626611891, 1, 1, net.ipv6(ipaddress.ip_address('127.0.0.1')).packed, # 8444 # ) for _ in range(1000)] sample_addr_data = unhexlify( 'fd01f4' + ( '0000000060f420b30000000' '1000000000000000100000000000000000000ffff7f00000120fc' ) * 500 ) # protocol.CreatePacket(b'ping', b'test') sample_ping_msg = unhexlify( 'e9beb4d970696e67000000000000000000000004ee26b0dd74657374') # from pybitmessage import pathmagic # pathmagic.setup() # import protocol # msg = protocol.assembleVersionMessage('127.0.0.1', 8444, [1, 2, 3]) sample_version_msg = unhexlify( 'e9beb4d976657273696f6e00000000000000006b1b06b182000000030000000000000003' '0000000064fdd3e1000000000000000100000000000000000000ffff7f00000120fc0000' '00000000000300000000000000000000ffff7f00000120fc00c0b6c3eefb2adf162f5079' '4269746d6573736167653a302e362e332e322f03010203' ) class TestMessage(unittest.TestCase): """Test assembling and disassembling of network mesages""" def test_packet(self): """Check packet creation and parsing by message.Message""" msg = message.Message(b'ping', b'test').to_bytes() self.assertEqual(msg[:len(magic_bytes)], magic_bytes) with self.assertRaises(ValueError): # wrong magic message.Message.from_bytes(msg[1:]) with self.assertRaises(ValueError): # wrong length message.Message.from_bytes(msg[:-1]) with self.assertRaises(ValueError): # wrong checksum message.Message.from_bytes(msg[:-1] + b'\x00') msg = message.Message.from_bytes(sample_ping_msg) self.assertEqual(msg.command, b'ping') self.assertEqual(msg.payload, b'test') def test_addr(self): """Test addr messages""" msg = message.Message(b'addr', sample_addr_data) addr_packet = message.Addr.from_message(msg) self.assertEqual(len(addr_packet.addresses), 500) address = addr_packet.addresses.pop() self.assertEqual(address.stream, 1) self.assertEqual(address.services, 1) self.assertEqual(address.port, 8444) self.assertEqual(address.host, '127.0.0.1') def test_version(self): """Test version message""" msg = message.Message.from_bytes(sample_version_msg) self.assertEqual(msg.command, b'version') version_packet = message.Version.from_message(msg) self.assertEqual(version_packet.host, '127.0.0.1') self.assertEqual(version_packet.port, 8444) self.assertEqual(version_packet.protocol_version, 3) self.assertEqual(version_packet.services, 3) self.assertEqual(version_packet.user_agent, b'/PyBitmessage:0.6.3.2/') self.assertEqual(version_packet.streams, [1, 2, 3]) msg = version_packet.to_bytes() # omit header and timestamp self.assertEqual(msg[24:36], sample_version_msg[24:36]) self.assertEqual(msg[44:], sample_version_msg[44:])