def add_payment_channel_listener(
self,
payment_channel_proxy: PaymentChannel,
from_block: typing.BlockSpecification = 'latest',
):
payment_channel_filter = payment_channel_proxy.all_events_filter(from_block=from_block)
channel_identifier = payment_channel_proxy.channel_identifier()
self.add_event_listener(
f'PaymentChannel event {channel_identifier}',
payment_channel_filter,
raiden_contracts.contract_manager.CONTRACT_MANAGER.get_contract_abi(
CONTRACT_TOKEN_NETWORK,
),
)
def test_payment_channel_proxy_basics(
token_network_proxy,
private_keys,
blockchain_rpc_ports,
token_proxy,
chain_id,
web3,
):
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
c1_client = JSONRPCClient(
'0.0.0.0',
blockchain_rpc_ports[0],
private_keys[1],
web3=web3,
)
c2_client = JSONRPCClient(
'0.0.0.0',
blockchain_rpc_ports[0],
private_keys[2],
web3=web3,
)
c1_token_network_proxy = TokenNetwork(
c1_client,
token_network_address,
)
c2_token_network_proxy = TokenNetwork(
c2_client,
token_network_address,
)
channel_proxy_1 = PaymentChannel(c1_token_network_proxy, c2_client.sender)
channel_proxy_2 = PaymentChannel(c2_token_network_proxy, c1_client.sender)
event_filter = channel_proxy_1.all_events_filter(
from_block=web3.eth.blockNumber,
to_block='latest',
)
# test basic assumptions
assert channel_proxy_1.channel_identifier(
) == channel_proxy_2.channel_identifier()
assert channel_proxy_1.opened() is False
assert channel_proxy_2.opened() is False
assert channel_proxy_1.closed() is False
assert channel_proxy_2.closed() is False
events = event_filter.get_all_entries()
assert len(events) == 0 # no event for this channel yet
# create a channel
channel_identifier = c1_token_network_proxy.new_netting_channel(
c2_client.sender,
NETTINGCHANNEL_SETTLE_TIMEOUT_MIN,
)
assert channel_identifier is not None
assert channel_proxy_1.channel_identifier() == channel_identifier
assert channel_proxy_1.opened() is True
# check the settlement timeouts
assert channel_proxy_1.settle_timeout() == channel_proxy_2.settle_timeout()
assert channel_proxy_1.settle_timeout(
) == NETTINGCHANNEL_SETTLE_TIMEOUT_MIN
events = event_filter.get_all_entries()
assert len(events) == 1 # ChannelOpened
# test deposits
initial_token_balance = 100
token_proxy.transfer(c1_client.sender, initial_token_balance)
initial_balance_c1 = token_proxy.balance_of(c1_client.sender)
assert initial_balance_c1 == initial_token_balance
initial_balance_c2 = token_proxy.balance_of(c2_client.sender)
assert initial_balance_c2 == 0
# actual deposit
channel_proxy_1.deposit(10)
events = event_filter.get_all_entries()
assert len(events) == 2 # ChannelOpened, ChannelNewDeposit
# balance proof by c2
transferred_amount = 3
balance_proof = BalanceProof(
channel_identifier=encode_hex(channel_identifier),
token_network_address=to_checksum_address(token_network_address),
nonce=1,
chain_id=chain_id,
transferred_amount=transferred_amount,
)
balance_proof.signature = encode_hex(
sign_data(encode_hex(private_keys[1]),
balance_proof.serialize_bin()), )
# correct close
c2_token_network_proxy.close(
c1_client.sender,
balance_proof.nonce,
balance_proof.balance_hash,
balance_proof.additional_hash,
decode_hex(balance_proof.signature),
)
assert channel_proxy_1.closed() is True
assert channel_proxy_2.closed() is True
events = event_filter.get_all_entries()
assert len(events) == 3 # ChannelOpened, ChannelNewDeposit, ChannelClosed
# check the settlement timeouts again
assert channel_proxy_1.settle_timeout() == channel_proxy_2.settle_timeout()
assert channel_proxy_1.settle_timeout(
) == NETTINGCHANNEL_SETTLE_TIMEOUT_MIN
# update transfer
wait_blocks(c1_client.web3, NETTINGCHANNEL_SETTLE_TIMEOUT_MIN)
c2_token_network_proxy.settle(
0,
0,
EMPTY_HASH,
c1_client.sender,
transferred_amount,
0,
EMPTY_HASH,
)
assert channel_proxy_1.settled() is True
assert channel_proxy_2.settled() is True
events = event_filter.get_all_entries()
assert len(
events
) == 4 # ChannelOpened, ChannelNewDeposit, ChannelClosed, ChannelSettled
