def test_channel_opening(client: Client, web3: Web3, make_account,
private_keys: List[str], channel_manager_contract,
token_contract, mine_sync_event, wait_for_blocks,
use_tester, state_db_path):
receiver1_privkey = make_account(RECEIVER_ETH_ALLOWANCE,
RECEIVER_TOKEN_ALLOWANCE, private_keys[2])
receiver2_privkey = make_account(RECEIVER_ETH_ALLOWANCE,
RECEIVER_TOKEN_ALLOWANCE, private_keys[3])
receiver_address = privkey_to_addr(receiver1_privkey)
# make sure channel_manager1 is terminated properly, otherwise Blockchain will be running
# in the background, ruining other tests' results
channel_manager1 = ChannelManager(web3,
channel_manager_contract,
token_contract,
receiver1_privkey,
n_confirmations=5,
state_filename=state_db_path)
start_channel_manager(channel_manager1, use_tester, mine_sync_event)
channel_manager2 = ChannelManager(web3,
channel_manager_contract,
token_contract,
receiver2_privkey,
n_confirmations=5,
state_filename=state_db_path)
start_channel_manager(channel_manager2, use_tester, mine_sync_event)
channel_manager1.wait_sync()
channel_manager2.wait_sync()
blockchain = channel_manager1.blockchain
channel = client.open_channel(receiver_address, 10)
# should be in unconfirmed channels
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) not in channel_manager1.channels
assert (channel.sender,
channel.block) in channel_manager1.unconfirmed_channels
channel_rec = channel_manager1.unconfirmed_channels[channel.sender,
channel.block]
assert is_same_address(channel_rec.receiver, receiver_address)
assert is_same_address(channel_rec.sender, channel.sender)
assert channel_rec.mtime == channel_rec.ctime
# should be confirmed after n blocks
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) in channel_manager1.channels
channel_rec = channel_manager1.channels[channel.sender, channel.block]
assert is_same_address(channel_rec.receiver, receiver_address)
assert is_same_address(channel_rec.sender, channel.sender)
assert channel_rec.balance == 0
assert channel_rec.last_signature is None
assert channel_rec.is_closed is False
assert channel_rec.settle_timeout == -1
# should not appear in other channel manager
assert (channel.sender, channel.block) not in channel_manager2.channels
assert (channel.sender,
channel.block) not in channel_manager2.unconfirmed_channels
channel_manager1.stop()
channel_manager2.stop()
def test_version(web3: Web3, channel_manager_contract: Contract,
token_contract: Contract, make_account,
private_keys: List[str]):
"""Test if proxy refuses to run if it deployed contract version
is different from the one it expects"""
receiver1_privkey = make_account(RECEIVER_ETH_ALLOWANCE,
RECEIVER_TOKEN_ALLOWANCE, private_keys[2])
# this one should not raise
cm = ChannelManager(web3,
channel_manager_contract,
token_contract,
receiver1_privkey,
state_filename=":memory:")
cm.stop()
# now we patch it
channel_manager_contract = FakeChannelManagerContract(receiver1_privkey)
# check of version string should fail here
with pytest.raises(InvalidContractVersion):
ChannelManager(web3,
channel_manager_contract,
token_contract,
receiver1_privkey,
state_filename=":memory:")
def test_channel_opening(client, web3, make_account,
make_channel_manager_proxy, token_contract,
mine_sync_event, wait_for_blocks, use_tester):
receiver1_privkey = make_account(RECEIVER_ETH_ALLOWANCE,
RECEIVER_TOKEN_ALLOWANCE)
receiver2_privkey = make_account(RECEIVER_ETH_ALLOWANCE,
RECEIVER_TOKEN_ALLOWANCE)
receiver_address = privkey_to_addr(receiver1_privkey)
channel_manager1 = ChannelManager(
web3,
make_channel_manager_proxy(receiver1_privkey),
token_contract,
receiver1_privkey,
n_confirmations=5)
start_channel_manager(channel_manager1, use_tester, mine_sync_event)
channel_manager2 = ChannelManager(
web3,
make_channel_manager_proxy(receiver2_privkey),
token_contract,
receiver2_privkey,
n_confirmations=5)
start_channel_manager(channel_manager2, use_tester, mine_sync_event)
channel_manager1.wait_sync()
channel_manager2.wait_sync()
blockchain = channel_manager1.blockchain
channel = client.open_channel(receiver_address, 10)
# should be in unconfirmed channels
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) not in channel_manager1.channels
assert (channel.sender,
channel.block) in channel_manager1.unconfirmed_channels
channel_rec = channel_manager1.unconfirmed_channels[channel.sender,
channel.block]
assert is_same_address(channel_rec.receiver, receiver_address)
assert is_same_address(channel_rec.sender, channel.sender)
assert channel_rec.mtime == channel_rec.ctime
# should be confirmed after n blocks
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) in channel_manager1.channels
channel_rec = channel_manager1.channels[channel.sender, channel.block]
assert is_same_address(channel_rec.receiver, receiver_address)
assert is_same_address(channel_rec.sender, channel.sender)
assert channel_rec.balance == 0
assert channel_rec.last_signature is None
assert channel_rec.is_closed is False
assert channel_rec.settle_timeout == -1
# should not appear in other channel manager
assert (channel.sender, channel.block) not in channel_manager2.channels
assert (channel.sender,
channel.block) not in channel_manager2.unconfirmed_channels
def make_channel_manager(private_key: str, state_filename: str, web3):
contracts_abi_path = os.path.join(os.path.dirname(__file__),
'data/contracts.json')
abi = json.load(open(contracts_abi_path))['ERC223Token']['abi']
channel_manager_proxy = make_contract_proxy(web3, private_key,
config.CHANNEL_MANAGER_ADDRESS)
token_address = channel_manager_proxy.contract.call().token_address()
token_contract = web3.eth.contract(abi=abi, address=token_address)
try:
return ChannelManager(web3,
channel_manager_proxy,
token_contract,
private_key,
state_filename=state_filename)
except StateReceiverAddrMismatch as e:
log.error(
'Receiver address does not match address stored in a saved state. '
'Use a different file, or backup and remove %s. (%s)' %
(state_filename, e))
sys.exit(1)
except StateContractAddrMismatch as e:
log.error('channel contract address mismatch. '
'Saved state file is %s. Backup it, remove, then'
'start proxy again (%s)' % (state_filename, e))
sys.exit(1)
def make_channel_manager(
private_key: str,
channel_manager_address: str,
state_filename: str,
web3: Web3
) -> ChannelManager:
channel_manager_contract = make_channel_manager_contract(web3, channel_manager_address)
token_address = channel_manager_contract.call().token()
token_abi = config.CONTRACT_METADATA[config.TOKEN_ABI_NAME]['abi']
token_contract = web3.eth.contract(abi=token_abi, address=token_address)
try:
return ChannelManager(
web3,
channel_manager_contract,
token_contract,
private_key,
state_filename=state_filename
)
except StateReceiverAddrMismatch as e:
log.error(
'Receiver address does not match address stored in a saved state. '
'Use a different file, or backup and remove %s. (%s)' %
(state_filename, e)
)
sys.exit(1)
except StateContractAddrMismatch as e:
log.error(
'Channel contract address mismatch. '
'Saved state file is %s. Backup it, remove, then start proxy again (%s)' %
(state_filename, e)
)
sys.exit(1)
def channel_manager(web3, receiver_privkey, make_channel_manager_proxy,
token_contract, use_tester, mine_sync_event):
contract_proxy = make_channel_manager_proxy(receiver_privkey)
manager = ChannelManager(web3,
contract_proxy,
token_contract,
receiver_privkey,
n_confirmations=5)
start_channel_manager(manager, use_tester, mine_sync_event)
return manager
def channel_manager(web3, receiver_privkey, make_channel_manager_proxy,
token_contract, use_tester, mine_sync_event, state_db_path,
revert_chain):
contract_proxy = make_channel_manager_proxy(receiver_privkey)
manager = ChannelManager(web3,
contract_proxy,
token_contract,
receiver_privkey,
n_confirmations=5,
state_filename=state_db_path)
start_channel_manager(manager, use_tester, mine_sync_event)
yield manager
manager.stop()
def channel_manager(web3, receiver_privkey, make_channel_manager_proxy,
token_contract, use_tester, mine_sync_event):
if use_tester:
snapshot_id = web3.testing.snapshot()
contract_proxy = make_channel_manager_proxy(receiver_privkey)
manager = ChannelManager(web3,
contract_proxy,
token_contract,
receiver_privkey,
n_confirmations=5)
start_channel_manager(manager, use_tester, mine_sync_event)
yield manager
if use_tester:
web3.testing.revert(snapshot_id)
def make_channel_manager(
private_key: str,
channel_manager_address: str,
state_filename: str,
web3: Web3
) -> ChannelManager:
"""
Args:
private_key (str): receiver's private key
channel_manager_address (str): channel manager contract to use
state_filename (str): path to the channel manager state database
web3 (Web3): web3 provider
Returns:
ChannelManager: intialized and synced channel manager
"""
channel_manager_address = to_checksum_address(channel_manager_address)
channel_manager_contract = make_channel_manager_contract(web3, channel_manager_address)
token_address = channel_manager_contract.call().token()
token_abi = constants.CONTRACT_METADATA[constants.TOKEN_ABI_NAME]['abi']
token_contract = web3.eth.contract(abi=token_abi, address=token_address)
try:
return ChannelManager(
web3,
channel_manager_contract,
token_contract,
private_key,
state_filename=state_filename
)
except StateReceiverAddrMismatch as e:
log.error(
'Receiver address does not match address stored in a saved state. '
'Use a different file, or backup and remove %s. (%s)' %
(state_filename, e)
)
sys.exit(1)
except StateContractAddrMismatch as e:
log.error(
'Channel contract address mismatch. '
'Saved state file is %s. Backup it, remove, then start proxy again (%s)' %
(state_filename, e)
)
sys.exit(1)
def make_channel_manager(
receiver: str,
private_key: str,
channel_manager_address: str,
state_filename: str,
web3: Web3
) -> ChannelManager:
"""
Args:
private_key (str): receiver's private key
channel_manager_address (str): channel manager contract to use
state_filename (str): path to the channel manager state database
web3 (Web3): web3 provider
Returns:
ChannelManager: intialized and synced channel manager
"""
channel_manager_address = Web3.toChecksumAddress(channel_manager_address)
channel_manager_contract = make_channel_manager_contract(web3, channel_manager_address)
receiver_address = Web3.toChecksumAddress(receiver)
try:
return ChannelManager(
web3,
channel_manager_contract,
receiver,
private_key,
state_filename=state_filename
)
except StateReceiverAddrMismatch as e:
log.error(
'Receiver address does not match address stored in a saved state. '
'Use a different file, or backup and remove %s. (%s)' %
(state_filename, e)
)
sys.exit(1)
except StateContractAddrMismatch as e:
log.error(
'Channel contract address mismatch. '
'Saved state file is %s. Backup it, remove, then start proxy again (%s)' %
(state_filename, e)
)
sys.exit(1)
def test_different_receivers(web3, make_account, make_channel_manager_proxy,
token_contract, mine_sync_event, client,
sender_address, wait_for_blocks, use_tester,
state_db_path):
receiver1_privkey = make_account(RECEIVER_ETH_ALLOWANCE,
RECEIVER_TOKEN_ALLOWANCE)
receiver2_privkey = make_account(RECEIVER_ETH_ALLOWANCE,
RECEIVER_TOKEN_ALLOWANCE)
receiver1_address = privkey_to_addr(receiver1_privkey)
channel_manager1 = ChannelManager(
web3,
make_channel_manager_proxy(receiver1_privkey),
token_contract,
receiver1_privkey,
n_confirmations=5,
state_filename=state_db_path)
start_channel_manager(channel_manager1, use_tester, mine_sync_event)
channel_manager2 = ChannelManager(
web3,
make_channel_manager_proxy(receiver2_privkey),
token_contract,
receiver2_privkey,
n_confirmations=5,
state_filename=state_db_path)
start_channel_manager(channel_manager2, use_tester, mine_sync_event)
channel_manager1.wait_sync()
channel_manager2.wait_sync()
blockchain = channel_manager1.blockchain
assert channel_manager2.blockchain.n_confirmations == blockchain.n_confirmations
assert channel_manager2.blockchain.poll_interval == blockchain.poll_interval
# unconfirmed open
channel = client.open_channel(receiver1_address, 10)
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
assert (sender_address,
channel.block) in channel_manager1.unconfirmed_channels
assert (sender_address,
channel.block) not in channel_manager2.unconfirmed_channels
# confirmed open
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert (sender_address, channel.block) in channel_manager1.channels
assert (sender_address, channel.block) not in channel_manager2.channels
# unconfirmed topup
channel.topup(5)
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager1.channels[sender_address, channel.block]
assert len(channel_rec.unconfirmed_topups) == 1
assert channel_rec.deposit == 10
# confirmed topup
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager1.channels[sender_address, channel.block]
assert len(channel_rec.unconfirmed_topups) == 0
assert channel_rec.deposit == 15
# closing
channel.close()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager1.channels[sender_address, channel.block]
assert channel_rec.is_closed is True
# settlement
block_before = web3.eth.blockNumber
wait_for_blocks(channel_rec.settle_timeout - block_before)
channel.settle()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert (sender_address, channel.block) not in channel_manager1.channels
channel_manager1.stop()
channel_manager2.stop()