def test_token_network_proxy(token_network_proxy, private_keys, token_proxy,
chain_id, web3, contract_manager):
assert token_network_proxy.settlement_timeout_min(
) == TEST_SETTLE_TIMEOUT_MIN
assert token_network_proxy.settlement_timeout_max(
) == TEST_SETTLE_TIMEOUT_MAX
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
c1_signer = LocalSigner(private_keys[1])
c1_client = JSONRPCClient(web3, private_keys[1])
c1_chain = BlockChainService(jsonrpc_client=c1_client,
contract_manager=contract_manager)
c2_client = JSONRPCClient(web3, private_keys[2])
c1_token_network_proxy = TokenNetwork(
jsonrpc_client=c1_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
c2_token_network_proxy = TokenNetwork(
jsonrpc_client=c2_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
initial_token_balance = 100
token_proxy.transfer(c1_client.address, initial_token_balance)
token_proxy.transfer(c2_client.address, initial_token_balance)
initial_balance_c1 = token_proxy.balance_of(c1_client.address)
assert initial_balance_c1 == initial_token_balance
initial_balance_c2 = token_proxy.balance_of(c2_client.address)
assert initial_balance_c2 == initial_token_balance
# instantiating a new channel - test basic assumptions
assert (c1_token_network_proxy._channel_exists_and_not_settled(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier="latest",
) is False)
channel_identifier = c1_token_network_proxy._call_and_check_result(
"latest",
"getChannelIdentifier",
to_checksum_address(c1_client.address),
to_checksum_address(c2_client.address),
)
assert channel_identifier == 0
msg = "Zero is not a valid channel_identifier identifier, ValueError must be " "raised."
with pytest.raises(ValueError, message=msg):
assert c1_token_network_proxy.channel_is_opened(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier="latest",
channel_identifier=0,
)
msg = "Zero is not a valid channel_identifier identifier. ValueError must be " "raised."
with pytest.raises(ValueError, message=msg):
assert c1_token_network_proxy.channel_is_closed(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier="latest",
channel_identifier=0,
)
msg = ("Opening a channel with a settle_timeout lower then token "
"network's minimum will fail. This must be validated and the "
"transaction must not be sent.")
with pytest.raises(InvalidSettleTimeout, message=msg):
c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN - 1,
given_block_identifier="latest",
)
msg = ("Opening a channel with a settle_timeout larger then token "
"network's maximum will fail. This must be validated and the "
"transaction must not be sent.")
with pytest.raises(InvalidSettleTimeout, message=msg):
c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MAX + 1,
given_block_identifier="latest",
)
msg = (
"Opening a channel with itself is not allow. This must be validated and "
"the transaction must not be sent.")
with pytest.raises(SamePeerAddress, message=msg):
c1_token_network_proxy.new_netting_channel(
partner=c1_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier="latest",
)
msg = "Trying a deposit to an inexisting channel must fail."
with pytest.raises(RaidenUnrecoverableError,
message=msg,
match="does not exist"):
c1_token_network_proxy.set_total_deposit(
given_block_identifier="latest",
channel_identifier=1,
total_deposit=1,
partner=c2_client.address,
)
msg = "Trying to close an inexisting channel must fail."
match = "The channel was not open at the provided block"
with pytest.raises(RaidenUnrecoverableError, message=msg, match=match):
c1_token_network_proxy.close(
channel_identifier=1,
partner=c2_client.address,
balance_hash=EMPTY_HASH,
nonce=0,
additional_hash=EMPTY_HASH,
signature=EMPTY_SIGNATURE,
given_block_identifier="latest",
)
channel_identifier = c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier="latest",
)
msg = "new_netting_channel did not return a valid channel id"
assert isinstance(channel_identifier, T_ChannelID), msg
msg = "multiple channels with the same peer are not allowed"
with pytest.raises(DuplicatedChannelError, message=msg):
c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier="latest",
)
assert (c1_token_network_proxy._channel_exists_and_not_settled(
participant1=c1_client.address,
participant2=c2_client.address,
channel_identifier=channel_identifier,
block_identifier="latest",
) is True)
assert (c1_token_network_proxy.channel_is_opened(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier="latest",
channel_identifier=channel_identifier,
) is True)
msg = "set_total_deposit must fail if the amount exceed the account's balance"
with pytest.raises(DepositMismatch, message=msg):
c1_token_network_proxy.set_total_deposit(
given_block_identifier="latest",
channel_identifier=channel_identifier,
total_deposit=initial_token_balance + 1,
partner=c2_client.address,
)
msg = "set_total_deposit must fail with a negative amount"
with pytest.raises(DepositMismatch):
c1_token_network_proxy.set_total_deposit(
given_block_identifier="latest",
channel_identifier=channel_identifier,
total_deposit=-1,
partner=c2_client.address,
)
msg = "set_total_deposit must fail with a zero amount"
with pytest.raises(DepositMismatch):
c1_token_network_proxy.set_total_deposit(
given_block_identifier="latest",
channel_identifier=channel_identifier,
total_deposit=0,
partner=c2_client.address,
)
c1_token_network_proxy.set_total_deposit(
given_block_identifier="latest",
channel_identifier=channel_identifier,
total_deposit=10,
partner=c2_client.address,
)
transferred_amount = 3
balance_proof = BalanceProof(
channel_identifier=channel_identifier,
token_network_address=to_checksum_address(token_network_address),
nonce=1,
chain_id=chain_id,
transferred_amount=transferred_amount,
)
signature = c1_signer.sign(data=balance_proof.serialize_bin())
balance_proof.signature = encode_hex(signature)
signature_number = int.from_bytes(signature, "big")
bit_to_change = random.randint(0, SIGNATURE_SIZE_IN_BITS - 1)
signature_number_bit_flipped = signature_number ^ (2**bit_to_change)
invalid_signatures = [
EMPTY_SIGNATURE,
b"\x11" * 65,
signature_number_bit_flipped.to_bytes(len(signature), "big"),
]
msg = "close must fail if the signature is invalid"
for invalid_signature in invalid_signatures:
with pytest.raises(RaidenUnrecoverableError, message=msg):
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=invalid_signature,
given_block_identifier="latest",
)
blocknumber_prior_to_close = c2_client.block_number()
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=decode_hex(balance_proof.signature),
given_block_identifier="latest",
)
assert (c1_token_network_proxy.channel_is_closed(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier="latest",
channel_identifier=channel_identifier,
) is True)
assert (c1_token_network_proxy._channel_exists_and_not_settled(
participant1=c1_client.address,
participant2=c2_client.address,
channel_identifier=channel_identifier,
block_identifier="latest",
) is True)
msg = (
"given_block_identifier is the block at which the transaction is being "
"sent. If the channel is already closed at that block the client code "
"has a programming error. An exception is raised for that.")
with pytest.raises(RaidenUnrecoverableError, message=msg):
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=decode_hex(balance_proof.signature),
given_block_identifier="latest",
)
msg = ("The channel cannot be closed two times. If it was not closed at "
"given_block_identifier but it is closed at the time the proxy is "
"called an exception must be raised.")
with pytest.raises(RaidenRecoverableError, message=msg):
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=decode_hex(balance_proof.signature),
given_block_identifier=blocknumber_prior_to_close,
)
msg = "depositing to a closed channel must fail"
match = "setTotalDeposit call will fail. Channel is already closed"
with pytest.raises(RaidenRecoverableError, message=msg, match=match):
c2_token_network_proxy.set_total_deposit(
given_block_identifier=blocknumber_prior_to_close,
channel_identifier=channel_identifier,
total_deposit=20,
partner=c1_client.address,
)
c1_chain.wait_until_block(target_block_number=c1_chain.block_number() +
TEST_SETTLE_TIMEOUT_MIN)
invalid_transferred_amount = 1
msg = "settle with invalid transferred_amount data must fail"
with pytest.raises(RaidenUnrecoverableError, message=msg):
c2_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=invalid_transferred_amount,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c1_client.address,
partner_transferred_amount=transferred_amount,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier="latest",
)
c2_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=0,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c1_client.address,
partner_transferred_amount=transferred_amount,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier="latest",
)
assert (c1_token_network_proxy._channel_exists_and_not_settled(
participant1=c1_client.address,
participant2=c2_client.address,
channel_identifier=channel_identifier,
block_identifier="latest",
) is False)
assert token_proxy.balance_of(c1_client.address) == (initial_balance_c1 -
transferred_amount)
assert token_proxy.balance_of(c2_client.address) == (initial_balance_c2 +
transferred_amount)
msg = "depositing to a settled channel must fail"
match = "setTotalDeposit call will fail."
with pytest.raises(RaidenUnrecoverableError, message=msg, match=match):
c1_token_network_proxy.set_total_deposit(
given_block_identifier="latest",
channel_identifier=channel_identifier,
total_deposit=10,
partner=c2_client.address,
)
def test_token_network_actions_at_pruned_blocks(token_network_proxy,
private_keys, token_proxy,
web3, chain_id,
contract_manager):
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
c1_client = JSONRPCClient(web3, private_keys[1])
c1_token_network_proxy = TokenNetwork(
jsonrpc_client=c1_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
c1_chain = BlockChainService(jsonrpc_client=c1_client,
contract_manager=contract_manager)
c2_client = JSONRPCClient(web3, private_keys[2])
c3_client = JSONRPCClient(web3, private_keys[0])
c2_token_network_proxy = TokenNetwork(
jsonrpc_client=c2_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
initial_token_balance = 100
token_proxy.transfer(c1_client.address, initial_token_balance)
token_proxy.transfer(c2_client.address, initial_token_balance)
initial_balance_c1 = token_proxy.balance_of(c1_client.address)
assert initial_balance_c1 == initial_token_balance
initial_balance_c2 = token_proxy.balance_of(c2_client.address)
assert initial_balance_c2 == initial_token_balance
# create a channel
settle_timeout = STATE_PRUNING_AFTER_BLOCKS + 10
channel_identifier = c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=settle_timeout,
given_block_identifier="latest")
# Now wait until this block becomes pruned
pruned_number = c1_chain.block_number()
c1_chain.wait_until_block(target_block_number=pruned_number +
STATE_PRUNING_AFTER_BLOCKS)
# create a channel with given block being pruned, should always throw
with pytest.raises(NoStateForBlockIdentifier):
channel_identifier = c1_token_network_proxy.new_netting_channel(
partner=c3_client.address,
settle_timeout=10,
given_block_identifier=pruned_number)
# deposit with given block being pruned
c1_token_network_proxy.set_total_deposit(
given_block_identifier=pruned_number,
channel_identifier=channel_identifier,
total_deposit=2,
partner=c2_client.address,
)
# balance proof signed by c1
transferred_amount_c1 = 1
balance_proof_c1 = BalanceProof(
channel_identifier=channel_identifier,
token_network_address=to_checksum_address(token_network_address),
nonce=1,
chain_id=chain_id,
transferred_amount=transferred_amount_c1,
)
balance_proof_c1.signature = encode_hex(
LocalSigner(
private_keys[1]).sign(data=balance_proof_c1.serialize_bin()))
non_closing_data = balance_proof_c1.serialize_bin(
msg_type=MessageTypeId.BALANCE_PROOF_UPDATE) + decode_hex(
balance_proof_c1.signature)
non_closing_signature = LocalSigner(
c2_client.privkey).sign(data=non_closing_data)
# close channel with given block being pruned
c1_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c2_client.address,
balance_hash=EMPTY_HASH,
nonce=0,
additional_hash=EMPTY_HASH,
signature=EMPTY_SIGNATURE,
given_block_identifier=pruned_number,
)
close_pruned_number = c1_chain.block_number()
assert (c1_token_network_proxy.channel_is_closed(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier="latest",
channel_identifier=channel_identifier,
) is True)
assert (c1_token_network_proxy._channel_exists_and_not_settled(
participant1=c1_client.address,
participant2=c2_client.address,
channel_identifier=channel_identifier,
block_identifier="latest",
) is True)
c1_chain.wait_until_block(target_block_number=close_pruned_number +
STATE_PRUNING_AFTER_BLOCKS)
# update transfer with given block being pruned
c2_token_network_proxy.update_transfer(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof_c1.balance_hash),
nonce=balance_proof_c1.nonce,
additional_hash=decode_hex(balance_proof_c1.additional_hash),
closing_signature=decode_hex(balance_proof_c1.signature),
non_closing_signature=non_closing_signature,
given_block_identifier=close_pruned_number,
)
# update transfer
c1_chain.wait_until_block(target_block_number=c1_chain.block_number() +
settle_timeout)
# settle with given block being pruned
c1_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=transferred_amount_c1,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c2_client.address,
partner_transferred_amount=0,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier=close_pruned_number,
)
assert token_proxy.balance_of(
c2_client.address) == (initial_balance_c2 + transferred_amount_c1 - 0)
assert token_proxy.balance_of(
c1_client.address) == (initial_balance_c1 + 0 - transferred_amount_c1)
def test_token_network_proxy_update_transfer(token_network_proxy, private_keys,
token_proxy, chain_id, web3,
contract_manager):
"""Tests channel lifecycle, with `update_transfer` before settling"""
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
c1_client = JSONRPCClient(web3, private_keys[1])
c1_chain = BlockChainService(jsonrpc_client=c1_client,
contract_manager=contract_manager)
c2_client = JSONRPCClient(web3, private_keys[2])
c1_token_network_proxy = TokenNetwork(
jsonrpc_client=c1_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
c2_token_network_proxy = TokenNetwork(
jsonrpc_client=c2_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
# create a channel
channel_identifier = c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=10,
given_block_identifier="latest")
# deposit to the channel
initial_balance = 100
token_proxy.transfer(c1_client.address, initial_balance)
token_proxy.transfer(c2_client.address, initial_balance)
initial_balance_c1 = token_proxy.balance_of(c1_client.address)
assert initial_balance_c1 == initial_balance
initial_balance_c2 = token_proxy.balance_of(c2_client.address)
assert initial_balance_c2 == initial_balance
c1_token_network_proxy.set_total_deposit(
given_block_identifier="latest",
channel_identifier=channel_identifier,
total_deposit=10,
partner=c2_client.address,
)
c2_token_network_proxy.set_total_deposit(
given_block_identifier="latest",
channel_identifier=channel_identifier,
total_deposit=10,
partner=c1_client.address,
)
# balance proof signed by c1
transferred_amount_c1 = 1
transferred_amount_c2 = 3
balance_proof_c1 = BalanceProof(
channel_identifier=channel_identifier,
token_network_address=to_checksum_address(token_network_address),
nonce=1,
chain_id=chain_id,
transferred_amount=transferred_amount_c1,
)
balance_proof_c1.signature = encode_hex(
LocalSigner(
private_keys[1]).sign(data=balance_proof_c1.serialize_bin()))
# balance proof signed by c2
balance_proof_c2 = BalanceProof(
channel_identifier=channel_identifier,
token_network_address=to_checksum_address(token_network_address),
nonce=2,
chain_id=chain_id,
transferred_amount=transferred_amount_c2,
)
balance_proof_c2.signature = encode_hex(
LocalSigner(
private_keys[2]).sign(data=balance_proof_c2.serialize_bin()))
non_closing_data = balance_proof_c1.serialize_bin(
msg_type=MessageTypeId.BALANCE_PROOF_UPDATE) + decode_hex(
balance_proof_c1.signature)
non_closing_signature = LocalSigner(
c2_client.privkey).sign(data=non_closing_data)
with pytest.raises(RaidenUnrecoverableError) as exc:
c2_token_network_proxy.update_transfer(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof_c1.balance_hash),
nonce=balance_proof_c1.nonce,
additional_hash=decode_hex(balance_proof_c1.additional_hash),
closing_signature=decode_hex(balance_proof_c1.signature),
non_closing_signature=non_closing_signature,
given_block_identifier="latest",
)
assert "not in a closed state" in str(exc)
# close by c1
c1_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c2_client.address,
balance_hash=decode_hex(balance_proof_c2.balance_hash),
nonce=balance_proof_c2.nonce,
additional_hash=decode_hex(balance_proof_c2.additional_hash),
signature=decode_hex(balance_proof_c2.signature),
given_block_identifier="latest",
)
# update transfer with completely invalid closing signature
with pytest.raises(RaidenUnrecoverableError) as excinfo:
c2_token_network_proxy.update_transfer(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof_c1.balance_hash),
nonce=balance_proof_c1.nonce,
additional_hash=decode_hex(balance_proof_c1.additional_hash),
closing_signature=b"",
non_closing_signature=b"",
given_block_identifier="latest",
)
assert str(excinfo.value) == "Couldn't verify the balance proof signature"
# using invalid non-closing signature
# Usual mistake when calling update Transfer - balance proof signature is missing in the data
non_closing_data = balance_proof_c1.serialize_bin(
msg_type=MessageTypeId.BALANCE_PROOF_UPDATE)
non_closing_signature = LocalSigner(
c2_client.privkey).sign(data=non_closing_data)
with pytest.raises(RaidenUnrecoverableError):
c2_token_network_proxy.update_transfer(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof_c1.balance_hash),
nonce=balance_proof_c1.nonce,
additional_hash=decode_hex(balance_proof_c1.additional_hash),
closing_signature=decode_hex(balance_proof_c1.signature),
non_closing_signature=non_closing_signature,
given_block_identifier="latest",
)
non_closing_data = balance_proof_c1.serialize_bin(
msg_type=MessageTypeId.BALANCE_PROOF_UPDATE) + decode_hex(
balance_proof_c1.signature)
non_closing_signature = LocalSigner(
c2_client.privkey).sign(data=non_closing_data)
c2_token_network_proxy.update_transfer(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof_c1.balance_hash),
nonce=balance_proof_c1.nonce,
additional_hash=decode_hex(balance_proof_c1.additional_hash),
closing_signature=decode_hex(balance_proof_c1.signature),
non_closing_signature=non_closing_signature,
given_block_identifier="latest",
)
with pytest.raises(RaidenUnrecoverableError) as exc:
c1_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=transferred_amount_c1,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c2_client.address,
partner_transferred_amount=transferred_amount_c2,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier="latest",
)
assert "cannot be settled before settlement window is over" in str(exc)
c1_chain.wait_until_block(target_block_number=c1_chain.block_number() + 10)
# settling with an invalid amount
with pytest.raises(RaidenUnrecoverableError):
c1_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=2,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c2_client.address,
partner_transferred_amount=2,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier="latest",
)
# proper settle
c1_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=transferred_amount_c1,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c2_client.address,
partner_transferred_amount=transferred_amount_c2,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier="latest",
)
assert token_proxy.balance_of(
c2_client.address) == (initial_balance_c2 + transferred_amount_c1 -
transferred_amount_c2)
assert token_proxy.balance_of(
c1_client.address) == (initial_balance_c1 + transferred_amount_c2 -
transferred_amount_c1)
# Already settled
with pytest.raises(RaidenUnrecoverableError) as exc:
c2_token_network_proxy.set_total_deposit(
given_block_identifier="latest",
channel_identifier=channel_identifier,
total_deposit=20,
partner=c1_client.address,
)
assert "getChannelIdentifier returned 0" in str(exc)
def test_token_network_proxy_basics(
token_network_proxy,
private_keys,
token_proxy,
chain_id,
web3,
contract_manager,
):
# check settlement timeouts
assert token_network_proxy.settlement_timeout_min(
) == TEST_SETTLE_TIMEOUT_MIN
assert token_network_proxy.settlement_timeout_max(
) == TEST_SETTLE_TIMEOUT_MAX
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
c1_client = JSONRPCClient(web3, private_keys[1])
c1_chain = BlockChainService(
jsonrpc_client=c1_client,
contract_manager=contract_manager,
)
c2_client = JSONRPCClient(web3, private_keys[2])
c1_token_network_proxy = TokenNetwork(
jsonrpc_client=c1_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
c2_token_network_proxy = TokenNetwork(
jsonrpc_client=c2_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
initial_token_balance = 100
token_proxy.transfer(c1_client.address, initial_token_balance)
token_proxy.transfer(c2_client.address, initial_token_balance)
initial_balance_c1 = token_proxy.balance_of(c1_client.address)
assert initial_balance_c1 == initial_token_balance
initial_balance_c2 = token_proxy.balance_of(c2_client.address)
assert initial_balance_c2 == initial_token_balance
# instantiating a new channel - test basic assumptions
assert c1_token_network_proxy._channel_exists_and_not_settled(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier='latest',
) is False
channel_identifier = c1_token_network_proxy._call_and_check_result(
'latest',
'getChannelIdentifier',
to_checksum_address(c1_client.address),
to_checksum_address(c2_client.address),
)
assert c1_token_network_proxy.channel_is_opened(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier='latest',
channel_identifier=channel_identifier,
) is False
assert c1_token_network_proxy.channel_is_closed(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier='latest',
channel_identifier=channel_identifier,
) is False
# test timeout limits
with pytest.raises(InvalidSettleTimeout):
c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN - 1,
given_block_identifier='latest',
)
with pytest.raises(InvalidSettleTimeout):
c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MAX + 1,
given_block_identifier='latest',
)
# channel to self
with pytest.raises(SamePeerAddress):
c1_token_network_proxy.new_netting_channel(
partner=c1_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier='latest',
)
# Channel is not open yet
with pytest.raises(RaidenUnrecoverableError) as exc:
c1_token_network_proxy.set_total_deposit(
given_block_identifier='latest',
channel_identifier=1,
total_deposit=1,
partner=c2_client.address,
)
assert 'does not exist' in str(exc)
# Channel is not open yet
with pytest.raises(RaidenUnrecoverableError) as exc:
c1_token_network_proxy.close(
channel_identifier=1,
partner=c2_client.address,
balance_hash=EMPTY_HASH,
nonce=0,
additional_hash=EMPTY_HASH,
signature=EMPTY_HASH,
given_block_identifier='latest',
)
assert 'does not exist' in str(exc)
# actually create a channel
channel_identifier = c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier='latest',
)
assert channel_identifier is not None
# multiple channels with the same peer are not allowed
with pytest.raises(DuplicatedChannelError):
c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier='latest',
)
assert c1_token_network_proxy._channel_exists_and_not_settled(
participant1=c1_client.address,
participant2=c2_client.address,
channel_identifier=channel_identifier,
block_identifier='latest',
) is True
assert c1_token_network_proxy.channel_is_opened(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier='latest',
channel_identifier=channel_identifier,
) is True
# channel is open.
# deposit with no balance
with pytest.raises(DepositMismatch):
c1_token_network_proxy.set_total_deposit(
given_block_identifier='latest',
channel_identifier=channel_identifier,
total_deposit=101,
partner=c2_client.address,
)
# no negative deposit
with pytest.raises(DepositMismatch):
c1_token_network_proxy.set_total_deposit(
given_block_identifier='latest',
channel_identifier=channel_identifier,
total_deposit=-1,
partner=c2_client.address,
)
# actual deposit
c1_token_network_proxy.set_total_deposit(
given_block_identifier='latest',
channel_identifier=channel_identifier,
total_deposit=10,
partner=c2_client.address,
)
# balance proof by c2
transferred_amount = 3
balance_proof = BalanceProof(
channel_identifier=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(
LocalSigner(private_keys[1]).sign(
data=balance_proof.serialize_bin(), ), )
# close with invalid signature
with pytest.raises(RaidenUnrecoverableError):
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=b'\x11' * 65,
given_block_identifier='latest',
)
# correct close
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=decode_hex(balance_proof.signature),
given_block_identifier='latest',
)
assert c1_token_network_proxy.channel_is_closed(
participant1=c1_client.address,
participant2=c2_client.address,
block_identifier='latest',
channel_identifier=channel_identifier,
) is True
assert c1_token_network_proxy._channel_exists_and_not_settled(
participant1=c1_client.address,
participant2=c2_client.address,
channel_identifier=channel_identifier,
block_identifier='latest',
) is True
# closing already closed channel
with pytest.raises(RaidenRecoverableError):
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=decode_hex(balance_proof.signature),
given_block_identifier='latest',
)
with pytest.raises(RaidenRecoverableError) as exc:
c2_token_network_proxy.set_total_deposit(
given_block_identifier='latest',
channel_identifier=channel_identifier,
total_deposit=20,
partner=c1_client.address,
)
assert 'not in an open state' in str(exc)
with pytest.raises(RaidenRecoverableError) as exc:
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=decode_hex(balance_proof.signature),
given_block_identifier='latest',
)
assert 'not in an open state' in str(exc)
# update transfer
c1_chain.wait_until_block(target_block_number=c1_chain.block_number() +
TEST_SETTLE_TIMEOUT_MIN, )
# try to settle using incorrect data
with pytest.raises(RaidenUnrecoverableError):
c2_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=1,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c1_client.address,
partner_transferred_amount=transferred_amount,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier='latest',
)
c2_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=0,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c1_client.address,
partner_transferred_amount=transferred_amount,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier='latest',
)
assert c1_token_network_proxy._channel_exists_and_not_settled(
participant1=c1_client.address,
participant2=c2_client.address,
channel_identifier=channel_identifier,
block_identifier='latest',
) is False
assert token_proxy.balance_of(c1_client.address) == (initial_balance_c1 -
transferred_amount)
assert token_proxy.balance_of(c2_client.address) == (initial_balance_c2 +
transferred_amount)
with pytest.raises(RaidenUnrecoverableError) as exc:
c1_token_network_proxy.set_total_deposit(
given_block_identifier='latest',
channel_identifier=channel_identifier,
total_deposit=10,
partner=c2_client.address,
)
# No channel exists
assert 'getChannelIdentifier returned 0' in str(exc)
def test_payment_channel_outdated_channel_close(
token_network_proxy,
private_keys,
chain_id,
web3,
contract_manager,
):
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
partner = privatekey_to_address(private_keys[0])
client = JSONRPCClient(web3, private_keys[1])
chain = BlockChainService(
jsonrpc_client=client,
contract_manager=contract_manager,
)
token_network_proxy = TokenNetwork(
jsonrpc_client=client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
start_block = web3.eth.blockNumber
# create a channel
channel_identifier = token_network_proxy.new_netting_channel(
partner=partner,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier='latest',
)
assert channel_identifier is not None
# create channel proxies
channel_proxy_1 = PaymentChannel(
token_network=token_network_proxy,
channel_identifier=channel_identifier,
contract_manager=contract_manager,
)
channel_filter = channel_proxy_1.all_events_filter(
from_block=start_block,
to_block='latest',
)
assert channel_proxy_1.channel_identifier == channel_identifier
assert channel_proxy_1.opened('latest') is True
# balance proof by c1
balance_proof = BalanceProof(
channel_identifier=channel_identifier,
token_network_address=to_checksum_address(token_network_address),
nonce=0,
chain_id=chain_id,
transferred_amount=0,
)
balance_proof.signature = encode_hex(
LocalSigner(private_keys[0]).sign(
data=balance_proof.serialize_bin(), ), )
# correct close
token_network_proxy.close(
channel_identifier=channel_identifier,
partner=partner,
balance_hash=bytes(32),
nonce=balance_proof.nonce,
additional_hash=bytes(32),
signature=decode_hex(balance_proof.signature),
given_block_identifier='latest',
)
assert channel_proxy_1.closed('latest') is True
events = channel_filter.get_all_entries()
assert len(events) == 2 # ChannelOpened, ChannelClosed
# check the settlement timeouts again
assert channel_proxy_1.settle_timeout() == TEST_SETTLE_TIMEOUT_MIN
# update transfer -- we need to wait on +1 since we use the latest block on parity for
# estimate gas and at the time the latest block is the settle timeout block.
# More info: https://github.com/raiden-network/raiden/pull/3699#discussion_r270477227
chain.wait_until_block(target_block_number=client.block_number() +
TEST_SETTLE_TIMEOUT_MIN + 1)
token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=0,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=partner,
partner_transferred_amount=0,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier='latest',
)
assert channel_proxy_1.settled('latest') is True
events = channel_filter.get_all_entries()
assert len(events) == 3 # ChannelOpened, ChannelClosed, ChannelSettled
# Create a new channel with a different identifier
# create a channel
new_channel_identifier = token_network_proxy.new_netting_channel(
partner=partner,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier='latest',
)
assert new_channel_identifier is not None
# create channel proxies
channel_proxy_2 = PaymentChannel(
token_network=token_network_proxy,
channel_identifier=new_channel_identifier,
contract_manager=contract_manager,
)
assert channel_proxy_2.channel_identifier == new_channel_identifier
assert channel_proxy_2.opened('latest') is True
with pytest.raises(ChannelOutdatedError):
token_network_proxy.close(
channel_identifier=channel_identifier,
partner=partner,
balance_hash=bytes(32),
nonce=balance_proof.nonce,
additional_hash=bytes(32),
signature=decode_hex(balance_proof.signature),
given_block_identifier='latest',
)
def test_payment_channel_proxy_basics(
token_network_proxy,
private_keys,
token_proxy,
chain_id,
web3,
contract_manager,
):
token_network_address = to_canonical_address(
token_network_proxy.proxy.contract.address)
c1_client = JSONRPCClient(web3, private_keys[1])
c1_chain = BlockChainService(
jsonrpc_client=c1_client,
contract_manager=contract_manager,
)
c2_client = JSONRPCClient(web3, private_keys[2])
c1_token_network_proxy = TokenNetwork(
jsonrpc_client=c1_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
c2_token_network_proxy = TokenNetwork(
jsonrpc_client=c2_client,
token_network_address=token_network_address,
contract_manager=contract_manager,
)
start_block = web3.eth.blockNumber
# create a channel
channel_identifier = c1_token_network_proxy.new_netting_channel(
partner=c2_client.address,
settle_timeout=TEST_SETTLE_TIMEOUT_MIN,
given_block_identifier='latest',
)
assert channel_identifier is not None
# create channel proxies
channel_proxy_1 = PaymentChannel(
token_network=c1_token_network_proxy,
channel_identifier=channel_identifier,
contract_manager=contract_manager,
)
channel_proxy_2 = PaymentChannel(
token_network=c2_token_network_proxy,
channel_identifier=channel_identifier,
contract_manager=contract_manager,
)
channel_filter = channel_proxy_1.all_events_filter(
from_block=start_block,
to_block='latest',
)
assert channel_proxy_1.channel_identifier == channel_identifier
assert channel_proxy_2.channel_identifier == channel_identifier
assert channel_proxy_1.opened('latest') is True
assert channel_proxy_2.opened('latest') is True
# check the settlement timeouts
assert channel_proxy_1.settle_timeout() == channel_proxy_2.settle_timeout()
assert channel_proxy_1.settle_timeout() == TEST_SETTLE_TIMEOUT_MIN
events = channel_filter.get_all_entries()
assert len(events) == 1 # ChannelOpened
# test deposits
initial_token_balance = 100
token_proxy.transfer(c1_client.address, initial_token_balance)
initial_balance_c1 = token_proxy.balance_of(c1_client.address)
assert initial_balance_c1 == initial_token_balance
initial_balance_c2 = token_proxy.balance_of(c2_client.address)
assert initial_balance_c2 == 0
# actual deposit
channel_proxy_1.set_total_deposit(total_deposit=10,
block_identifier='latest')
events = channel_filter.get_all_entries()
assert len(events) == 2 # ChannelOpened, ChannelNewDeposit
# balance proof by c2
transferred_amount = 3
balance_proof = BalanceProof(
channel_identifier=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(
LocalSigner(private_keys[1]).sign(
data=balance_proof.serialize_bin(), ), )
# correct close
c2_token_network_proxy.close(
channel_identifier=channel_identifier,
partner=c1_client.address,
balance_hash=decode_hex(balance_proof.balance_hash),
nonce=balance_proof.nonce,
additional_hash=decode_hex(balance_proof.additional_hash),
signature=decode_hex(balance_proof.signature),
given_block_identifier='latest',
)
assert channel_proxy_1.closed('latest') is True
assert channel_proxy_2.closed('latest') is True
events = channel_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() == TEST_SETTLE_TIMEOUT_MIN
# update transfer -- we need to wait on +1 since we use the latest block on parity for
# estimate gas and at the time the latest block is the settle timeout block.
# More info: https://github.com/raiden-network/raiden/pull/3699#discussion_r270477227
c1_chain.wait_until_block(target_block_number=c1_client.block_number() +
TEST_SETTLE_TIMEOUT_MIN + 1, )
c2_token_network_proxy.settle(
channel_identifier=channel_identifier,
transferred_amount=0,
locked_amount=0,
locksroot=EMPTY_HASH,
partner=c1_client.address,
partner_transferred_amount=transferred_amount,
partner_locked_amount=0,
partner_locksroot=EMPTY_HASH,
given_block_identifier='latest',
)
assert channel_proxy_1.settled('latest') is True
assert channel_proxy_2.settled('latest') is True
events = channel_filter.get_all_entries()
assert len(
events
) == 4 # ChannelOpened, ChannelNewDeposit, ChannelClosed, ChannelSettled