async def test_proxy_peer_requests(request, event_bus, other_event_bus,
event_loop, chaindb_20, client_and_server):
server_event_bus = event_bus
client_event_bus = other_event_bus
client_peer, server_peer = client_and_server
client_peer_pool = MockPeerPoolWithConnectedPeers(
[client_peer], event_bus=client_event_bus)
server_peer_pool = MockPeerPoolWithConnectedPeers(
[server_peer], event_bus=server_event_bus)
async with AsyncExitStack() as stack:
await stack.enter_async_context(
run_peer_pool_event_server(client_event_bus,
client_peer_pool,
handler_type=ETHPeerPoolEventServer))
await stack.enter_async_context(
run_peer_pool_event_server(server_event_bus,
server_peer_pool,
handler_type=ETHPeerPoolEventServer))
await stack.enter_async_context(
background_asyncio_service(
ETHRequestServer(server_event_bus,
TO_NETWORKING_BROADCAST_CONFIG,
AsyncChainDB(chaindb_20.db))))
client_proxy_peer_pool = ETHProxyPeerPool(
client_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(client_proxy_peer_pool))
proxy_peer_pool = ETHProxyPeerPool(server_event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(proxy_peer_pool))
proxy_peer = await client_proxy_peer_pool.ensure_proxy_peer(
client_peer.session)
headers = await proxy_peer.eth_api.get_block_headers(0, 1, 0, False)
assert len(headers) == 1
block_header = headers[0]
assert block_header.block_number == 0
receipts = await proxy_peer.eth_api.get_receipts(headers)
assert len(receipts) == 1
receipt = receipts[0]
assert receipt[1][0] == block_header.receipt_root
block_bundles = await proxy_peer.eth_api.get_block_bodies(headers)
assert len(block_bundles) == 1
first_bundle = block_bundles[0]
assert first_bundle[1][0] == block_header.transaction_root
node_data = await proxy_peer.eth_api.get_node_data(
(block_header.state_root, ))
assert node_data[0][0] == block_header.state_root
async def test_proxy_peer_requests_with_timeouts(request, event_bus,
other_event_bus, event_loop,
client_and_server):
server_event_bus = event_bus
client_event_bus = other_event_bus
client_peer, server_peer = client_and_server
client_peer_pool = MockPeerPoolWithConnectedPeers(
[client_peer], event_bus=client_event_bus)
server_peer_pool = MockPeerPoolWithConnectedPeers(
[server_peer], event_bus=server_event_bus)
async with contextlib.AsyncExitStack() as stack:
await stack.enter_async_context(
run_peer_pool_event_server(client_event_bus,
client_peer_pool,
handler_type=ETHPeerPoolEventServer))
await stack.enter_async_context(
run_peer_pool_event_server(server_event_bus,
server_peer_pool,
handler_type=ETHPeerPoolEventServer))
# We just want an ETHRequestServer that doesn't answer us but we still have to run
# *something* to at least subscribe to the events. Otherwise Lahja's safety check will yell
# at us for sending requests into the void.
for event_type in ETHRequestServer(None, None,
None)._subscribed_events:
server_event_bus.subscribe(event_type, lambda _: None)
client_proxy_peer_pool = ETHProxyPeerPool(
client_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(client_proxy_peer_pool))
server_proxy_peer_pool = ETHProxyPeerPool(
server_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(server_proxy_peer_pool))
proxy_peer = await client_proxy_peer_pool.ensure_proxy_peer(
client_peer.session)
with pytest.raises(asyncio.TimeoutError):
await proxy_peer.eth_api.get_block_headers(0,
1,
0,
False,
timeout=0.01)
with pytest.raises(asyncio.TimeoutError):
await proxy_peer.eth_api.get_receipts((), timeout=0.01)
with pytest.raises(asyncio.TimeoutError):
await proxy_peer.eth_api.get_block_bodies((), timeout=0.01)
with pytest.raises(asyncio.TimeoutError):
await proxy_peer.eth_api.get_node_data((), timeout=0.01)
async def test_requests_when_peer_in_client_vanishs(request, event_bus,
other_event_bus,
event_loop, chaindb_20,
client_and_server):
server_event_bus = event_bus
client_event_bus = other_event_bus
client_peer, server_peer = client_and_server
client_peer_pool = MockPeerPoolWithConnectedPeers(
[client_peer], event_bus=client_event_bus)
server_peer_pool = MockPeerPoolWithConnectedPeers(
[server_peer], event_bus=server_event_bus)
async with contextlib.AsyncExitStack() as stack:
await stack.enter_async_context(
run_peer_pool_event_server(client_event_bus,
client_peer_pool,
handler_type=ETHPeerPoolEventServer))
await stack.enter_async_context(
run_peer_pool_event_server(server_event_bus,
server_peer_pool,
handler_type=ETHPeerPoolEventServer))
await stack.enter_async_context(
background_asyncio_service(
ETHRequestServer(server_event_bus,
TO_NETWORKING_BROADCAST_CONFIG,
MainnetChain.vm_configuration,
AsyncChainDB(chaindb_20.db))))
client_proxy_peer_pool = ETHProxyPeerPool(
client_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(client_proxy_peer_pool))
server_proxy_peer_pool = ETHProxyPeerPool(
server_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(server_proxy_peer_pool))
proxy_peer = await client_proxy_peer_pool.ensure_proxy_peer(
client_peer.session)
# We remove the peer from the client and assume to see PeerConnectionLost exceptions raised
client_peer_pool.connected_nodes.pop(client_peer.session)
with pytest.raises(PeerConnectionLost):
await proxy_peer.eth_api.get_block_headers(0, 1, 0, False)
with pytest.raises(PeerConnectionLost):
await proxy_peer.eth_api.get_receipts(())
with pytest.raises(PeerConnectionLost):
await proxy_peer.eth_api.get_block_bodies(())
with pytest.raises(PeerConnectionLost):
await proxy_peer.eth_api.get_node_data(())
async def two_connected_tx_pools(event_bus, other_event_bus, event_loop,
funded_address_private_key,
chain_with_block_validation, tx_validator,
client_and_server):
alice_event_bus = event_bus
bob_event_bus = other_event_bus
bob, alice = client_and_server
bob_peer_pool = MockPeerPoolWithConnectedPeers([bob],
event_bus=bob_event_bus)
alice_peer_pool = MockPeerPoolWithConnectedPeers([alice],
event_bus=alice_event_bus)
async with contextlib.AsyncExitStack() as stack:
await stack.enter_async_context(
run_peer_pool_event_server(bob_event_bus,
bob_peer_pool,
handler_type=ETHPeerPoolEventServer))
await stack.enter_async_context(
run_peer_pool_event_server(alice_event_bus,
alice_peer_pool,
handler_type=ETHPeerPoolEventServer))
bob_proxy_peer_pool = ETHProxyPeerPool(bob_event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(bob_proxy_peer_pool))
alice_proxy_peer_pool = ETHProxyPeerPool(
alice_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(alice_proxy_peer_pool))
alice_tx_pool = TxPool(
alice_event_bus,
alice_proxy_peer_pool,
tx_validator,
)
await stack.enter_async_context(
background_asyncio_service(alice_tx_pool))
bob_tx_pool = TxPool(
bob_event_bus,
bob_proxy_peer_pool,
tx_validator,
)
await stack.enter_async_context(background_asyncio_service(bob_tx_pool)
)
yield (
alice,
alice_event_bus,
alice_tx_pool,
), (bob, bob_event_bus, bob_tx_pool)
async def test_get_pooled_transactions_request(request, event_bus,
other_event_bus, event_loop,
chaindb_20, client_and_server):
server_event_bus = event_bus
client_event_bus = other_event_bus
client_peer, server_peer = client_and_server
if get_highest_eth_protocol_version(client_peer) < ETHProtocolV65.version:
pytest.skip("Test not applicable below eth/65")
client_peer_pool = MockPeerPoolWithConnectedPeers(
[client_peer], event_bus=client_event_bus)
server_peer_pool = MockPeerPoolWithConnectedPeers(
[server_peer], event_bus=server_event_bus)
async with contextlib.AsyncExitStack() as stack:
await stack.enter_async_context(
run_peer_pool_event_server(client_event_bus,
client_peer_pool,
handler_type=ETHPeerPoolEventServer))
await stack.enter_async_context(
run_peer_pool_event_server(server_event_bus,
server_peer_pool,
handler_type=ETHPeerPoolEventServer))
client_proxy_peer_pool = ETHProxyPeerPool(
client_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(client_proxy_peer_pool))
proxy_peer_pool = ETHProxyPeerPool(server_event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(proxy_peer_pool))
proxy_peer = await client_proxy_peer_pool.ensure_proxy_peer(
client_peer.session)
# The reason we run this test separately from the other request tests is because
# GetPooledTransactions requests should be answered from the tx pool which the previous
# test does not depend on.
await stack.enter_async_context(
background_asyncio_service(
TxPool(server_event_bus, proxy_peer_pool, lambda _: True)))
# The tx pool always answers these with an empty response
txs = await proxy_peer.eth_api.get_pooled_transactions((decode_hex(
'0x9ea39df6210064648ecbc465cd628fe52f69af53792e1c2f27840133435159d4'
), ))
assert len(txs) == 0
async def test_proxy_peer_requests_with_timeouts(request, event_bus,
other_event_bus, event_loop,
client_and_server):
server_event_bus = event_bus
client_event_bus = other_event_bus
client_peer, server_peer = client_and_server
client_peer_pool = MockPeerPoolWithConnectedPeers(
[client_peer], event_bus=client_event_bus)
server_peer_pool = MockPeerPoolWithConnectedPeers(
[server_peer], event_bus=server_event_bus)
async with AsyncExitStack() as stack:
await stack.enter_async_context(
run_peer_pool_event_server(client_event_bus,
client_peer_pool,
handler_type=ETHPeerPoolEventServer))
await stack.enter_async_context(
run_peer_pool_event_server(server_event_bus,
server_peer_pool,
handler_type=ETHPeerPoolEventServer))
client_proxy_peer_pool = ETHProxyPeerPool(
client_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(run_service(client_proxy_peer_pool))
server_proxy_peer_pool = ETHProxyPeerPool(
server_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(run_service(server_proxy_peer_pool))
proxy_peer = await client_proxy_peer_pool.ensure_proxy_peer(
client_peer.session)
with pytest.raises(asyncio.TimeoutError):
await proxy_peer.eth_api.get_block_headers(0,
1,
0,
False,
timeout=0.01)
with pytest.raises(asyncio.TimeoutError):
await proxy_peer.eth_api.get_receipts((), timeout=0.01)
with pytest.raises(asyncio.TimeoutError):
await proxy_peer.eth_api.get_block_bodies((), timeout=0.01)
with pytest.raises(asyncio.TimeoutError):
await proxy_peer.eth_api.get_node_data((), timeout=0.01)
def do_start(self) -> None:
trinity_config = self.boot_info.trinity_config
db = DBClient.connect(trinity_config.database_ipc_path)
app_config = trinity_config.get_app_config(Eth1AppConfig)
chain_config = app_config.get_chain_config()
chain = chain_config.full_chain_class(db)
if self.boot_info.trinity_config.network_id == MAINNET_NETWORK_ID:
validator = DefaultTransactionValidator(chain,
BYZANTIUM_MAINNET_BLOCK)
elif self.boot_info.trinity_config.network_id == ROPSTEN_NETWORK_ID:
validator = DefaultTransactionValidator(chain,
BYZANTIUM_ROPSTEN_BLOCK)
else:
raise ValueError(
"The TxPool component only supports MainnetChain or RopstenChain"
)
proxy_peer_pool = ETHProxyPeerPool(self.event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
self.tx_pool = TxPool(self.event_bus, proxy_peer_pool, validator)
asyncio.ensure_future(
exit_with_services(self.tx_pool, self._event_bus_service))
asyncio.ensure_future(self.tx_pool.run())
async def do_run(self, event_bus: EndpointAPI) -> None:
proxy_peer_pool = ETHProxyPeerPool(event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
async with background_trio_service(proxy_peer_pool):
service = NewBlockService(event_bus, proxy_peer_pool)
async with background_trio_service(service) as manager:
await manager.wait_finished()
def do_start(self) -> None:
trinity_config = self.boot_info.trinity_config
db_manager = create_db_consumer_manager(
trinity_config.database_ipc_path)
db = db_manager.get_db() # type: ignore
app_config = trinity_config.get_app_config(Eth1AppConfig)
chain_config = app_config.get_chain_config()
chain = chain_config.full_chain_class(db)
if self.boot_info.trinity_config.network_id == MAINNET_NETWORK_ID:
validator = DefaultTransactionValidator(chain,
BYZANTIUM_MAINNET_BLOCK)
elif self.boot_info.trinity_config.network_id == ROPSTEN_NETWORK_ID:
validator = DefaultTransactionValidator(chain,
BYZANTIUM_ROPSTEN_BLOCK)
else:
# TODO: We could hint the user about e.g. a --tx-pool-no-validation flag to run the
# tx pool without tx validation in this case
raise ValueError(
"The TxPool plugin only supports MainnetChain or RopstenChain")
proxy_peer_pool = ETHProxyPeerPool(self.event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
self.tx_pool = TxPool(self.event_bus, proxy_peer_pool, validator)
asyncio.ensure_future(self.tx_pool.run())
async def do_run(cls, boot_info: BootInfo, event_bus: EndpointAPI) -> None:
trinity_config = boot_info.trinity_config
db = DBClient.connect(trinity_config.database_ipc_path)
app_config = trinity_config.get_app_config(Eth1AppConfig)
chain_config = app_config.get_chain_config()
chain = chain_config.full_chain_class(db)
if boot_info.trinity_config.network_id == MAINNET_NETWORK_ID:
validator = DefaultTransactionValidator(chain,
PETERSBURG_MAINNET_BLOCK)
elif boot_info.trinity_config.network_id == ROPSTEN_NETWORK_ID:
validator = DefaultTransactionValidator(chain,
PETERSBURG_ROPSTEN_BLOCK)
else:
raise Exception("This code path should not be reachable")
proxy_peer_pool = ETHProxyPeerPool(event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
tx_pool = TxPool(event_bus, proxy_peer_pool, validator)
async with run_service(tx_pool):
await tx_pool.cancellation()
async def do_run(cls, boot_info: BootInfo, event_bus: EndpointAPI) -> None:
trinity_config = boot_info.trinity_config
db = DBClient.connect(trinity_config.database_ipc_path)
with db:
app_config = trinity_config.get_app_config(Eth1AppConfig)
chain_config = app_config.get_chain_config()
chain = chain_config.full_chain_class(db)
if boot_info.trinity_config.network_id == MAINNET_NETWORK_ID:
validator = DefaultTransactionValidator(
chain, ISTANBUL_MAINNET_BLOCK)
elif boot_info.trinity_config.network_id == ROPSTEN_NETWORK_ID:
validator = DefaultTransactionValidator(
chain, ISTANBUL_ROPSTEN_BLOCK)
elif boot_info.trinity_config.network_id == GOERLI_NETWORK_ID:
validator = DefaultTransactionValidator(
chain, ISTANBUL_GOERLI_BLOCK)
else:
raise Exception("This code path should not be reachable")
proxy_peer_pool = ETHProxyPeerPool(event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
async with background_asyncio_service(proxy_peer_pool):
tx_pool = TxPool(event_bus, proxy_peer_pool, validator)
async with background_asyncio_service(tx_pool) as manager:
await manager.wait_finished()
async def test_get_peers(event_bus, response, expected_count):
do_mock = mock_request_response(GetConnectedPeersRequest, response, event_bus)
async with do_mock:
proxy_peer_pool = ETHProxyPeerPool(event_bus, TO_NETWORKING_BROADCAST_CONFIG)
async with run_service(proxy_peer_pool):
peers = await proxy_peer_pool.get_peers()
assert len(peers) == expected_count
async def do_run(self, event_bus: EndpointAPI) -> None:
if self._boot_info.args.enable_metrics:
metrics_service = metrics_service_from_args(self._boot_info.args)
else:
metrics_service = NOOP_METRICS_SERVICE
proxy_peer_pool = ETHProxyPeerPool(event_bus, TO_NETWORKING_BROADCAST_CONFIG)
async with background_trio_service(proxy_peer_pool):
async with background_trio_service(metrics_service):
service = NewBlockService(
event_bus, proxy_peer_pool, metrics_service.registry, self._boot_info)
async with background_trio_service(service) as manager:
await manager.wait_finished()
async def test_adds_new_peers(event_bus):
do_mock = mock_request_response(
GetConnectedPeersRequest,
GetConnectedPeersResponseFactory.from_sessions((TEST_NODES[0],)),
event_bus,
)
async with do_mock:
proxy_peer_pool = ETHProxyPeerPool(event_bus, TO_NETWORKING_BROADCAST_CONFIG)
async with run_service(proxy_peer_pool):
assert len(await proxy_peer_pool.get_peers()) == 1
await event_bus.broadcast(PeerJoinedEvent(TEST_NODES[1]))
# Give the peer a moment to pickup the peer
await asyncio.sleep(0.01)
assert len(await proxy_peer_pool.get_peers()) == 2
async def test_does_not_propagate_invalid_tx(event_bus,
funded_address_private_key,
chain_with_block_validation,
tx_validator):
chain = chain_with_block_validation
initial_two_peers = TEST_NODES[:2]
node_one = initial_two_peers[0]
node_two = initial_two_peers[1]
async with AsyncExitStack() as stack:
await stack.enter_async_context(
mock_request_response(
GetConnectedPeersRequest,
GetConnectedPeersResponse(initial_two_peers),
event_bus,
))
peer_pool = ETHProxyPeerPool(event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(run_service(peer_pool))
tx_pool = TxPool(event_bus, peer_pool, tx_validator)
await stack.enter_async_context(background_asyncio_service(tx_pool))
await asyncio.sleep(0.01)
txs_broadcasted_by_peer1 = [
create_random_tx(chain, funded_address_private_key,
is_valid=False),
create_random_tx(chain, funded_address_private_key)
]
outgoing_tx, got_txns = observe_outgoing_transactions(event_bus)
# Peer1 sends some txs
await event_bus.broadcast(
TransactionsEvent(session=node_one,
command=Transactions(txs_broadcasted_by_peer1)))
await asyncio.wait_for(got_txns.wait(), timeout=0.1)
# Check that Peer2 received only the second tx which is valid
assert outgoing_tx == [
(node_two, (txs_broadcasted_by_peer1[1], )),
]
async def do_run(self, event_bus: EndpointAPI) -> None:
boot_info = self._boot_info
trinity_config = boot_info.trinity_config
db = DBClient.connect(trinity_config.database_ipc_path)
with db:
app_config = trinity_config.get_app_config(Eth1AppConfig)
chain_config = app_config.get_chain_config()
chain = chain_config.full_chain_class(db)
validator = DefaultTransactionValidator.from_network_id(
chain,
boot_info.trinity_config.network_id,
)
proxy_peer_pool = ETHProxyPeerPool(event_bus, TO_NETWORKING_BROADCAST_CONFIG)
async with background_asyncio_service(proxy_peer_pool):
tx_pool = TxPool(event_bus, proxy_peer_pool, validator)
async with background_asyncio_service(tx_pool) as manager:
await manager.wait_finished()
async def test_removes_peers(event_bus):
do_mock = mock_request_response(
GetConnectedPeersRequest,
GetConnectedPeersResponseFactory.from_sessions(TEST_NODES[:2]),
event_bus,
)
async with do_mock:
proxy_peer_pool = ETHProxyPeerPool(event_bus, TO_NETWORKING_BROADCAST_CONFIG)
async with run_service(proxy_peer_pool):
assert len(await proxy_peer_pool.get_peers()) == 2
await event_bus.broadcast(PeerLeftEvent(TEST_NODES[0]))
# Give the peer a moment to remove the peer
await asyncio.sleep(0.01)
peers = await proxy_peer_pool.get_peers()
assert len(peers) == 1
assert peers[0].session == TEST_NODES[1]
async def test_proxy_peer_requests(request, event_bus, other_event_bus,
event_loop, chaindb_20, client_and_server):
server_event_bus = event_bus
client_event_bus = other_event_bus
client_peer, server_peer = client_and_server
client_peer_pool = MockPeerPoolWithConnectedPeers(
[client_peer], event_bus=client_event_bus)
server_peer_pool = MockPeerPoolWithConnectedPeers(
[server_peer], event_bus=server_event_bus)
async with contextlib.AsyncExitStack() as stack:
await stack.enter_async_context(
run_peer_pool_event_server(client_event_bus,
client_peer_pool,
handler_type=ETHPeerPoolEventServer))
await stack.enter_async_context(
run_peer_pool_event_server(server_event_bus,
server_peer_pool,
handler_type=ETHPeerPoolEventServer))
base_db = chaindb_20.db
await stack.enter_async_context(
background_asyncio_service(
ETHRequestServer(
server_event_bus,
TO_NETWORKING_BROADCAST_CONFIG,
AsyncChainDB(base_db),
)))
await stack.enter_async_context(
background_asyncio_service(
WitRequestServer(
server_event_bus,
TO_NETWORKING_BROADCAST_CONFIG,
base_db,
)))
client_proxy_peer_pool = ETHProxyPeerPool(
client_event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(client_proxy_peer_pool))
proxy_peer_pool = ETHProxyPeerPool(server_event_bus,
TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(
background_asyncio_service(proxy_peer_pool))
proxy_peer = await client_proxy_peer_pool.ensure_proxy_peer(
client_peer.session)
headers = await proxy_peer.eth_api.get_block_headers(0, 1, 0, False)
assert len(headers) == 1
block_header = headers[0]
assert block_header.block_number == 0
receipts = await proxy_peer.eth_api.get_receipts(headers)
assert len(receipts) == 1
receipt = receipts[0]
assert receipt[1][0] == block_header.receipt_root
block_bundles = await proxy_peer.eth_api.get_block_bodies(headers)
assert len(block_bundles) == 1
first_bundle = block_bundles[0]
assert first_bundle[1][0] == block_header.transaction_root
node_data = await proxy_peer.eth_api.get_node_data(
(block_header.state_root, ))
assert node_data[0][0] == block_header.state_root
block_hash = block_header.hash
node_hashes = tuple(Hash32Factory.create_batch(5))
# Populate the server's witness DB so that it can reply to our request.
wit_db = AsyncWitnessDB(base_db)
wit_db.persist_witness_hashes(block_hash, node_hashes)
response = await proxy_peer.wit_api.get_block_witness_hashes(block_hash
)
assert set(response) == set(node_hashes)
async def test_can_instantiate_proxy_pool(event_bus):
ETHProxyPeerPool(event_bus, TO_NETWORKING_BROADCAST_CONFIG)
async def test_tx_propagation(event_bus,
funded_address_private_key,
chain_with_block_validation,
tx_validator):
initial_two_peers = TEST_NODES[:2]
node_one = initial_two_peers[0]
node_two = initial_two_peers[1]
async with AsyncExitStack() as stack:
await stack.enter_async_context(mock_request_response(
GetConnectedPeersRequest,
GetConnectedPeersResponseFactory.from_sessions(initial_two_peers),
event_bus,
))
peer_pool = ETHProxyPeerPool(event_bus, TO_NETWORKING_BROADCAST_CONFIG)
await stack.enter_async_context(run_service(peer_pool))
tx_pool = TxPool(event_bus, peer_pool, tx_validator)
await stack.enter_async_context(background_asyncio_service(tx_pool))
await asyncio.sleep(0.01)
txs_broadcasted_by_peer1 = [
create_random_tx(chain_with_block_validation, funded_address_private_key)
]
# this needs to go here to ensure that the subscription is *after*
# the one installed by the transaction pool so that the got_txns
# event will get set after the other handlers have been called.
outgoing_tx, got_txns = observe_outgoing_transactions(event_bus)
# Peer1 sends some txs
await event_bus.broadcast(
TransactionsEvent(session=node_one, command=Transactions(txs_broadcasted_by_peer1))
)
await asyncio.wait_for(got_txns.wait(), timeout=0.1)
assert outgoing_tx == [
(node_two, tuple(txs_broadcasted_by_peer1)),
]
# Clear the recording, we asserted all we want and would like to have a fresh start
outgoing_tx.clear()
# Peer1 sends same txs again
await event_bus.broadcast(
TransactionsEvent(session=node_one, command=Transactions(txs_broadcasted_by_peer1))
)
await asyncio.wait_for(got_txns.wait(), timeout=0.1)
# Check that Peer2 doesn't receive them again
assert len(outgoing_tx) == 0
# Peer2 sends exact same txs back
await event_bus.broadcast(
TransactionsEvent(session=node_two, command=Transactions(txs_broadcasted_by_peer1))
)
await asyncio.wait_for(got_txns.wait(), timeout=0.1)
# Check that Peer1 won't get them as that is where they originally came from
assert len(outgoing_tx) == 0
txs_broadcasted_by_peer2 = [
create_random_tx(chain_with_block_validation, funded_address_private_key),
txs_broadcasted_by_peer1[0]
]
# Peer2 sends old + new tx
await event_bus.broadcast(
TransactionsEvent(session=node_two, command=Transactions(txs_broadcasted_by_peer2))
)
await asyncio.wait_for(got_txns.wait(), timeout=0.1)
# Not sure why this sleep is needed....
await asyncio.sleep(0.01)
# Check that Peer1 receives only the one tx that it didn't know about
assert outgoing_tx == [
(node_one, (txs_broadcasted_by_peer2[0],)),
]