async def test_regular_syncer(request, event_loop, chaindb_fresh, chaindb_20):
client_peer, server_peer = await get_directly_linked_peers(
request, event_loop,
ETHPeer, FakeAsyncHeaderDB(chaindb_fresh.db),
ETHPeer, FakeAsyncHeaderDB(chaindb_20.db))
client = RegularChainSyncer(
FrontierTestChain(chaindb_fresh.db),
chaindb_fresh,
MockPeerPoolWithConnectedPeers([client_peer]))
server = RegularChainSyncer(
FrontierTestChain(chaindb_20.db),
chaindb_20,
MockPeerPoolWithConnectedPeers([server_peer]))
asyncio.ensure_future(server.run())
def finalizer():
event_loop.run_until_complete(asyncio.gather(client.cancel(), server.cancel()))
# Yield control so that client/server.run() returns, otherwise asyncio will complain.
event_loop.run_until_complete(asyncio.sleep(0.1))
request.addfinalizer(finalizer)
asyncio.ensure_future(client.run())
await wait_for_head(client.db, server.db.get_canonical_head())
head = client.db.get_canonical_head()
assert head.state_root in client.db.db
async def test_fast_syncer(request, event_loop, chaindb_fresh, chaindb_20):
client_peer, server_peer = await get_directly_linked_peers(
request, event_loop, ETHPeer, FakeAsyncHeaderDB(chaindb_fresh.db),
ETHPeer, FakeAsyncHeaderDB(chaindb_20.db))
client_peer_pool = MockPeerPoolWithConnectedPeers([client_peer])
client = FastChainSyncer(chaindb_fresh, client_peer_pool)
server = RegularChainSyncer(FrontierTestChain(chaindb_20.db), chaindb_20,
MockPeerPoolWithConnectedPeers([server_peer]))
asyncio.ensure_future(server.run())
def finalizer():
event_loop.run_until_complete(server.cancel())
# Yield control so that server.run() returns, otherwise asyncio will complain.
event_loop.run_until_complete(asyncio.sleep(0.1))
request.addfinalizer(finalizer)
# FastChainSyncer.run() will return as soon as it's caught up with the peer.
await asyncio.wait_for(client.run(), timeout=2)
head = chaindb_fresh.get_canonical_head()
assert head == chaindb_20.get_canonical_head()
# Now download the state for the chain's head.
state_downloader = StateDownloader(chaindb_fresh.db, head.state_root,
client_peer_pool)
await asyncio.wait_for(state_downloader.run(), timeout=2)
assert head.state_root in chaindb_fresh.db