def test_channel_lifecycle(raiden_network, token_addresses, deposit,
transport_config):
node1, node2 = raiden_network
token_address = token_addresses[0]
token_network_identifier = views.get_token_network_identifier_by_token_address(
views.state_from_app(node1),
node1.raiden.default_registry.address,
token_address,
)
api1 = RaidenAPI(node1.raiden)
api2 = RaidenAPI(node2.raiden)
registry_address = node1.raiden.default_registry.address
# 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 not api1.get_channel_list(registry_address, token_address,
api2.address)
# open is a synchronous api
api1.channel_open(node1.raiden.default_registry.address, token_address,
api2.address)
channels = api1.get_channel_list(registry_address, token_address,
api2.address)
assert len(channels) == 1
channel12 = get_channelstate(node1, node2, token_network_identifier)
assert channel.get_status(channel12) == CHANNEL_STATE_OPENED
event_list1 = api1.get_channel_events_blockchain(
token_address,
channel12.partner_state.address,
channel12.open_transaction.finished_block_number,
)
assert any((event['event'] == ChannelEvent.OPENED and is_same_address(
event['args']['participant1'],
to_normalized_address(api1.address),
) and is_same_address(
event['args']['participant2'],
to_normalized_address(api2.address),
)) for event in event_list1)
token_events = api1.get_token_network_events_blockchain(
token_address,
channel12.open_transaction.finished_block_number,
)
assert token_events[0]['event'] == ChannelEvent.OPENED
registry_address = api1.raiden.default_registry.address
# Load the new state with the deposit
api1.set_total_channel_deposit(
registry_address,
token_address,
api2.address,
deposit,
)
# let's make sure it's idempotent
api1.set_total_channel_deposit(
registry_address,
token_address,
api2.address,
deposit,
)
channel12 = get_channelstate(node1, node2, token_network_identifier)
assert channel.get_status(channel12) == CHANNEL_STATE_OPENED
assert channel.get_balance(channel12.our_state,
channel12.partner_state) == deposit
assert channel12.our_state.contract_balance == deposit
assert api1.get_channel_list(registry_address, 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_blockchain(
token_address,
channel12.partner_state.address,
channel12.open_transaction.finished_block_number,
)
assert any((event['event'] == ChannelEvent.DEPOSIT and is_same_address(
event['args']['participant'],
to_normalized_address(api1.address),
) and event['args']['total_deposit'] == deposit) for event in event_list2)
api1.channel_close(registry_address, token_address, api2.address)
# Load the new state with the channel closed
channel12 = get_channelstate(node1, node2, token_network_identifier)
event_list3 = api1.get_channel_events_blockchain(
token_address,
channel12.partner_state.address,
channel12.open_transaction.finished_block_number,
)
assert len(event_list3) > len(event_list2)
assert any((event['event'] == ChannelEvent.CLOSED and is_same_address(
event['args']['closing_participant'],
to_normalized_address(api1.address),
)) for event in event_list3)
assert channel.get_status(channel12) == CHANNEL_STATE_CLOSED
settlement_block = (
channel12.close_transaction.finished_block_number +
channel12.settle_timeout +
10 # arbitrary number of additional blocks, used to wait for the settle() call
)
wait_until_block(node1.raiden.chain, settlement_block)
state_changes = node1.raiden.wal.storage.get_statechanges_by_identifier(
from_identifier=0,
to_identifier='latest',
)
assert must_contain_entry(
state_changes, ContractReceiveChannelSettled, {
'token_network_identifier': token_network_identifier,
'channel_identifier': channel12.identifier,
})
