250 lines
11 KiB
Python
250 lines
11 KiB
Python
import asyncio
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import scribe
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from unittest.mock import Mock
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from scribe.blockchain.network import LBCRegTest
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from scribe.hub.udp import StatusServer
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from scribe.hub.session import LBRYElectrumX
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from lbry.wallet.network import Network
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from lbry.wallet.orchstr8 import Conductor
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from lbry.wallet.orchstr8.node import SPVNode
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from lbry.wallet.rpc import RPCSession
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from lbry.testcase import IntegrationTestCase, AsyncioTestCase
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from lbry.conf import Config
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class NetworkTests(IntegrationTestCase):
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async def test_remote_height_updated_automagically(self):
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initial_height = self.ledger.network.remote_height
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await self.blockchain.generate(1)
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await self.ledger.network.on_header.first
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self.assertEqual(self.ledger.network.remote_height, initial_height + 1)
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async def test_server_features(self):
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self.assertDictEqual({
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'genesis_hash': LBCRegTest.GENESIS_HASH,
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'hash_function': 'sha256',
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'hosts': {},
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'protocol_max': '0.199.0',
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'protocol_min': '0.54.0',
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'pruning': None,
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'description': '',
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'payment_address': '',
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'donation_address': '',
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'daily_fee': '0',
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'server_version': scribe.__version__,
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'trending_algorithm': 'fast_ar',
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}, await self.ledger.network.get_server_features())
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# await self.conductor.spv_node.stop()
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payment_address, donation_address = await self.account.get_addresses(limit=2)
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original_address = self.conductor.spv_node.server.env.payment_address
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original_donation_address = self.conductor.spv_node.server.env.donation_address
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original_description = self.conductor.spv_node.server.env.description
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original_daily_fee = self.conductor.spv_node.server.env.daily_fee
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self.conductor.spv_node.server.env.payment_address = payment_address
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self.conductor.spv_node.server.env.donation_address = donation_address
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self.conductor.spv_node.server.env.description = 'Fastest server in the west.'
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self.conductor.spv_node.server.env.daily_fee = '42'
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LBRYElectrumX.set_server_features(self.conductor.spv_node.server.env)
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# await self.ledger.network.on_connected.first
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self.assertDictEqual({
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'genesis_hash': LBCRegTest.GENESIS_HASH,
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'hash_function': 'sha256',
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'hosts': {},
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'protocol_max': '0.199.0',
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'protocol_min': '0.54.0',
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'pruning': None,
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'description': 'Fastest server in the west.',
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'payment_address': payment_address,
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'donation_address': donation_address,
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'daily_fee': '42',
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'server_version': scribe.__version__,
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'trending_algorithm': 'fast_ar',
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}, await self.ledger.network.get_server_features())
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# cleanup the changes since the attributes are set on the class
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self.conductor.spv_node.server.env.payment_address = original_address
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self.conductor.spv_node.server.env.donation_address = original_donation_address
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self.conductor.spv_node.server.env.description = original_description
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self.conductor.spv_node.server.env.daily_fee = original_daily_fee
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LBRYElectrumX.set_server_features(self.conductor.spv_node.server.env)
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class ReconnectTests(IntegrationTestCase):
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async def test_multiple_servers(self):
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# we have a secondary node that connects later, so
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node2 = SPVNode(node_number=2)
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await node2.start(self.blockchain)
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self.ledger.network.config['explicit_servers'].append((node2.hostname, node2.port))
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self.ledger.network.config['explicit_servers'].reverse()
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self.assertEqual(50002, self.ledger.network.client.server[1])
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await self.ledger.stop()
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await self.ledger.start()
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self.assertTrue(self.ledger.network.is_connected)
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self.assertEqual(50003, self.ledger.network.client.server[1])
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await node2.stop(True)
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self.assertFalse(self.ledger.network.is_connected)
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await self.ledger.resolve([], ['derp'])
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self.assertEqual(50002, self.ledger.network.client.server[1])
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async def test_direct_sync(self):
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await self.ledger.stop()
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initial_height = self.ledger.local_height_including_downloaded_height
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await self.blockchain.generate(100)
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while self.conductor.spv_node.server.session_manager.notified_height < initial_height + 99: # off by 1
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await asyncio.sleep(0.1)
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self.assertEqual(initial_height, self.ledger.local_height_including_downloaded_height)
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await self.ledger.headers.open()
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await self.ledger.network.start()
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await self.ledger.network.on_connected.first
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await self.ledger.initial_headers_sync()
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self.assertEqual(initial_height + 100, self.ledger.local_height_including_downloaded_height)
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async def test_connection_drop_still_receives_events_after_reconnected(self):
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address1 = await self.account.receiving.get_or_create_usable_address()
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# disconnect and send a new tx, should reconnect and get it
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self.ledger.network.client.transport.close()
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self.assertFalse(self.ledger.network.is_connected)
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await self.ledger.resolve([], 'derp')
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sendtxid = await self.send_to_address_and_wait(address1, 1.1337, 1)
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self.assertLess(self.ledger.network.client.response_time, 1) # response time properly set lower, we are fine
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await self.assertBalance(self.account, '1.1337')
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# is it real? are we rich!? let me see this tx...
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d = self.ledger.network.get_transaction(sendtxid)
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# what's that smoke on my ethernet cable? oh no!
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master_client = self.ledger.network.client
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self.ledger.network.client.connection_lost(Exception())
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with self.assertRaises(asyncio.TimeoutError):
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await d
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self.assertIsNone(master_client.response_time) # response time unknown as it failed
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# rich but offline? no way, no water, let's retry
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with self.assertRaisesRegex(ConnectionError, 'connection is not available'):
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await self.ledger.network.get_transaction(sendtxid)
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# * goes to pick some water outside... * time passes by and another donation comes in
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sendtxid = await self.blockchain.send_to_address(address1, 42)
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await self.blockchain.generate(1)
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# (this is just so the test doesn't hang forever if it doesn't reconnect)
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if not self.ledger.network.is_connected:
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await asyncio.wait_for(self.ledger.network.on_connected.first, timeout=10.0)
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# omg, the burned cable still works! torba is fire proof!
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await self.ledger.network.get_transaction(sendtxid)
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async def test_timeout_then_reconnect(self):
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# tests that it connects back after some failed attempts
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await self.conductor.spv_node.stop()
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self.assertFalse(self.ledger.network.is_connected)
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await asyncio.sleep(0.2) # let it retry and fail once
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await self.conductor.spv_node.start(self.conductor.lbcwallet_node)
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await self.ledger.network.on_connected.first
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self.assertTrue(self.ledger.network.is_connected)
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async def test_timeout_and_concurrency_propagated_from_config(self):
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conf = Config()
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self.assertEqual(self.ledger.network.client.timeout, 30)
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self.assertEqual(self.ledger.network.client.concurrency, 32)
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conf.hub_timeout = 123.0
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conf.concurrent_hub_requests = 42
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conf.known_hubs = self.ledger.config['known_hubs']
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conf.wallet_dir = self.ledger.config['data_path']
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self.manager.config = conf
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await self.manager.reset()
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self.assertEqual(self.ledger.network.client.timeout, 123)
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self.assertEqual(self.ledger.network.client.concurrency, 42)
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# async def test_online_but_still_unavailable(self):
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# # Edge case. See issue #2445 for context
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# self.assertIsNotNone(self.ledger.network.session_pool.fastest_session)
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# for session in self.ledger.network.session_pool.sessions:
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# session.response_time = None
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# self.assertIsNone(self.ledger.network.session_pool.fastest_session)
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class UDPServerFailDiscoveryTest(AsyncioTestCase):
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async def test_wallet_connects_despite_lack_of_udp(self):
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conductor = Conductor()
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conductor.spv_node.udp_port = '0'
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await conductor.start_lbcd()
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self.addCleanup(conductor.stop_lbcd)
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await conductor.start_lbcwallet()
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self.addCleanup(conductor.stop_lbcwallet)
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await conductor.start_spv()
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self.addCleanup(conductor.stop_spv)
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self.assertFalse(conductor.spv_node.server.status_server.is_running)
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await asyncio.wait_for(conductor.start_wallet(), timeout=5)
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self.addCleanup(conductor.stop_wallet)
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self.assertTrue(conductor.wallet_node.ledger.network.is_connected)
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class ServerPickingTestCase(AsyncioTestCase):
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async def _make_udp_server(self, port, latency) -> StatusServer:
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s = StatusServer()
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await s.start(0, b'\x00' * 32, 'US', '127.0.0.1', port, True)
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s.set_available()
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sendto = s._protocol.transport.sendto
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def mock_sendto(data, addr):
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self.loop.call_later(latency, sendto, data, addr)
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s._protocol.transport.sendto = mock_sendto
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self.addCleanup(s.stop)
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return s
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async def _make_fake_server(self, latency=1.0, port=1):
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# local fake server with artificial latency
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class FakeSession(RPCSession):
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async def handle_request(self, request):
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await asyncio.sleep(latency)
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if request.method == 'server.version':
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return tuple(request.args)
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return {'height': 1}
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server = await self.loop.create_server(lambda: FakeSession(), host='127.0.0.1', port=port)
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self.addCleanup(server.close)
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await self._make_udp_server(port, latency)
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return '127.0.0.1', port
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async def _make_bad_server(self, port=42420):
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async def echo(reader, writer):
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while True:
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writer.write(await reader.read())
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server = await asyncio.start_server(echo, host='127.0.0.1', port=port)
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self.addCleanup(server.close)
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await self._make_udp_server(port, 0)
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return '127.0.0.1', port
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async def test_pick_fastest(self):
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ledger = Mock(config={
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'default_servers': [
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# fast but unhealthy, should be discarded
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# await self._make_bad_server(),
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('localhost', 1),
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('example.that.doesnt.resolve', 9000),
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await self._make_fake_server(latency=1.0, port=1340),
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await self._make_fake_server(latency=0.1, port=1337),
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await self._make_fake_server(latency=0.4, port=1339),
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],
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'connect_timeout': 3
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})
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network = Network(ledger)
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self.addCleanup(network.stop)
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await network.start()
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await asyncio.wait_for(network.on_connected.first, timeout=10)
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self.assertTrue(network.is_connected)
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self.assertTupleEqual(network.client.server, ('127.0.0.1', 1337))
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# self.assertTrue(all([not session.is_closing() for session in network.session_pool.available_sessions]))
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# ensure we are connected to all of them after a while
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# await asyncio.sleep(1)
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# self.assertEqual(len(list(network.session_pool.available_sessions)), 3)
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