def test_channel_lifecycle(blockchain_type, raiden_network, token_addresses,
deposit):
if blockchain_type == 'tester':
pytest.skip(
'there is not support ATM for retrieving events from tester')
node1, node2 = raiden_network
token_address = token_addresses[0]
api1 = RaidenAPI(node1.raiden)
api2 = RaidenAPI(node2.raiden)
# nodes don't have a channel, so they are not healthchecking
assert api1.get_node_network_state(api2.address) == NODE_NETWORK_UNKNOWN
assert api2.get_node_network_state(api1.address) == NODE_NETWORK_UNKNOWN
assert api1.get_channel_list(token_address, api2.address) == []
# this is a synchronous api
api1.open(token_address, api2.address)
channels = api1.get_channel_list(token_address, api2.address)
assert len(channels) == 1
channel12 = channels[0]
event_list1 = api1.get_channel_events(
channel12.channel_address,
channel12.external_state.opened_block,
)
assert event_list1 == []
# the channel has no deposit yet
assert channel12.state == CHANNEL_STATE_OPENED
api1.deposit(token_address, api2.address, deposit)
assert channel12.state == CHANNEL_STATE_OPENED
assert channel12.balance == deposit
assert channel12.contract_balance == deposit
assert api1.get_channel_list(token_address, api2.address) == [channel12]
# there is a channel open, they must be healthchecking each other
assert api1.get_node_network_state(api2.address) == NODE_NETWORK_REACHABLE
assert api2.get_node_network_state(api1.address) == NODE_NETWORK_REACHABLE
event_list2 = api1.get_channel_events(
channel12.channel_address,
channel12.external_state.opened_block,
)
assert any((event['_event_type'] == 'ChannelNewBalance'
and event['participant'] == hexlify(api1.address))
for event in event_list2)
with pytest.raises(InvalidState):
api1.settle(token_address, api2.address)
api1.close(token_address, api2.address)
node1.raiden.poll_blockchain_events()
event_list3 = api1.get_channel_events(
channel12.channel_address,
channel12.external_state.opened_block,
)
assert len(event_list3) > len(event_list2)
assert any((event['_event_type'] == 'ChannelClosed'
and event['closing_address'] == hexlify(api1.address))
for event in event_list3)
assert channel12.state == CHANNEL_STATE_CLOSED
settlement_block = (
channel12.external_state.closed_block + channel12.settle_timeout +
5 # arbitrary number of additional blocks, used to wait for the settle() call
)
wait_until_block(node1.raiden.chain, settlement_block)
node1.raiden.poll_blockchain_events()
assert channel12.state == CHANNEL_STATE_SETTLED
