def test_channel_settled_event(
channel_manager: ChannelManager,
confirmed_open_channel: Channel,
wait_for_blocks,
web3: Web3,
use_tester: bool
):
if not use_tester:
pytest.skip('This test takes several hours on real blockchains.')
blockchain = channel_manager.blockchain
channel_manager.wait_sync()
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
confirmed_open_channel.close()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager.channels[channel_id]
wait_for_blocks(channel_rec.settle_timeout - web3.eth.blockNumber)
gevent.sleep(blockchain.poll_interval)
assert web3.eth.blockNumber >= channel_rec.settle_timeout
assert channel_id in channel_manager.channels
confirmed_open_channel.settle()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert channel_id not in channel_manager.channels
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_topup(
channel_manager: ChannelManager,
confirmed_open_channel: Channel,
wait_for_blocks
):
blockchain = channel_manager.blockchain
channel_manager.wait_sync()
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
confirmed_open_channel.topup(5)
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager.channels[channel_id]
topup_txs = channel_rec.unconfirmed_topups
assert len(topup_txs) == 1 and list(topup_txs.values())[0] == 5
wait_for_blocks(channel_manager.blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager.channels[channel_id]
topup_txs = channel_rec.unconfirmed_topups
assert len(topup_txs) == 0
assert channel_rec.deposit == 15
def test_topup(
channel_manager: ChannelManager,
confirmed_open_channel: Channel,
wait_for_blocks
):
blockchain = channel_manager.blockchain
channel_manager.wait_sync()
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
confirmed_open_channel.topup(5)
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager.channels[channel_id]
topup_txs = channel_rec.unconfirmed_topups
assert len(topup_txs) == 1 and list(topup_txs.values())[0] == 5
wait_for_blocks(channel_manager.blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager.channels[channel_id]
topup_txs = channel_rec.unconfirmed_topups
assert len(topup_txs) == 0
assert channel_rec.deposit == 15
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 test_reorg(
web3: Web3,
channel_manager: ChannelManager,
client: Client,
receiver_address: str,
wait_for_blocks,
use_tester: bool
):
if not use_tester:
pytest.skip('Chain reorg tests only work in tester chain')
wait_for_blocks(10)
# create unconfirmed channel
channel_manager.wait_sync()
snapshot_id = web3.testing.snapshot()
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(0)
assert (channel.sender, channel.block) in channel_manager.unconfirmed_channels
# remove unconfirmed channel opening with reorg
web3.testing.revert(snapshot_id)
snapshot_id = web3.testing.snapshot()
wait_for_blocks(0)
assert (channel.sender, channel.block) not in channel_manager.unconfirmed_channels
web3.testing.mine(channel_manager.n_confirmations)
assert (channel.sender, channel.block) not in channel_manager.channels
# leave confirmed channel opening
web3.testing.revert(snapshot_id)
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(channel_manager.n_confirmations)
assert (channel.sender, channel.block) in channel_manager.channels
confirmed_snapshot_id = web3.testing.snapshot()
wait_for_blocks(3)
web3.testing.revert(confirmed_snapshot_id)
assert (channel.sender, channel.block) in channel_manager.channels
# remove unconfirmed topup
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(channel_manager.n_confirmations)
assert (channel.sender, channel.block) in channel_manager.channels
topup_snapshot_id = web3.testing.snapshot()
channel.topup(5)
wait_for_blocks(0)
channel_rec = channel_manager.channels[channel.sender, channel.block]
assert len(channel_rec.unconfirmed_topups) == 1
web3.testing.revert(topup_snapshot_id)
wait_for_blocks(0)
assert (channel.sender, channel.block) in channel_manager.channels
channel_rec = channel_manager.channels[channel.sender, channel.block]
assert len(channel_rec.unconfirmed_topups) == 0
def test_reorg(
web3: Web3,
channel_manager: ChannelManager,
client: Client,
receiver_address: str,
wait_for_blocks,
use_tester: bool
):
if not use_tester:
pytest.skip('Chain reorg tests only work in tester chain')
wait_for_blocks(10)
# create unconfirmed channel
channel_manager.wait_sync()
snapshot_id = web3.testing.snapshot()
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(0)
assert (channel.sender, channel.block) in channel_manager.unconfirmed_channels
# remove unconfirmed channel opening with reorg
web3.testing.revert(snapshot_id)
snapshot_id = web3.testing.snapshot()
wait_for_blocks(0)
assert (channel.sender, channel.block) not in channel_manager.unconfirmed_channels
web3.testing.mine(channel_manager.n_confirmations)
assert (channel.sender, channel.block) not in channel_manager.channels
# leave confirmed channel opening
web3.testing.revert(snapshot_id)
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(channel_manager.n_confirmations)
assert (channel.sender, channel.block) in channel_manager.channels
confirmed_snapshot_id = web3.testing.snapshot()
wait_for_blocks(3)
web3.testing.revert(confirmed_snapshot_id)
assert (channel.sender, channel.block) in channel_manager.channels
# remove unconfirmed topup
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(channel_manager.n_confirmations)
assert (channel.sender, channel.block) in channel_manager.channels
topup_snapshot_id = web3.testing.snapshot()
channel.topup(5)
wait_for_blocks(0)
channel_rec = channel_manager.channels[channel.sender, channel.block]
assert len(channel_rec.unconfirmed_topups) == 1
web3.testing.revert(topup_snapshot_id)
wait_for_blocks(0)
assert (channel.sender, channel.block) in channel_manager.channels
channel_rec = channel_manager.channels[channel.sender, channel.block]
assert len(channel_rec.unconfirmed_topups) == 0
def test_unconfirmed_topup(channel_manager: ChannelManager, client: Client,
receiver_address: str, wait_for_blocks):
blockchain = channel_manager.blockchain
channel_manager.wait_sync()
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender,
channel.block) in channel_manager.unconfirmed_channels
channel.topup(5)
wait_for_blocks(channel_manager.blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) in channel_manager.channels
channel_rec = channel_manager.channels[channel.sender, channel.block]
assert channel_rec.deposit == 15
def test_unconfirmed_topup(
channel_manager: ChannelManager,
client: Client,
receiver_address: str,
wait_for_blocks
):
blockchain = channel_manager.blockchain
channel_manager.wait_sync()
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) in channel_manager.unconfirmed_channels
channel.topup(5)
wait_for_blocks(channel_manager.blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) in channel_manager.channels
channel_rec = channel_manager.channels[channel.sender, channel.block]
assert channel_rec.deposit == 15
def test_close_confirmed_event(channel_manager: ChannelManager,
confirmed_open_channel: Channel,
wait_for_blocks):
blockchain = channel_manager.blockchain
channel_manager.wait_sync()
confirmed_open_channel.close()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.is_closed is True
settle_block = channel_manager.channel_manager_contract.call(
).getChannelInfo(channel_rec.sender, channel_rec.receiver,
channel_rec.open_block_number)[2]
assert channel_rec.settle_timeout == settle_block
def test_channel_settled_event(channel_manager: ChannelManager,
confirmed_open_channel: Channel,
wait_for_blocks, web3: Web3, use_tester: bool):
if not use_tester:
pytest.skip('This test takes several hours on real blockchains.')
blockchain = channel_manager.blockchain
channel_manager.wait_sync()
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
confirmed_open_channel.close()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager.channels[channel_id]
wait_for_blocks(channel_rec.settle_timeout - web3.eth.blockNumber)
gevent.sleep(blockchain.poll_interval)
assert web3.eth.blockNumber >= channel_rec.settle_timeout
assert channel_id in channel_manager.channels
confirmed_open_channel.settle()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert channel_id not in channel_manager.channels
def test_channel_settled_event(
channel_manager: ChannelManager,
confirmed_open_channel: Channel,
wait_for_blocks,
web3: Web3
):
blockchain = channel_manager.blockchain
channel_manager.wait_sync()
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
confirmed_open_channel.close()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
channel_rec = channel_manager.channels[channel_id]
wait_for_blocks(channel_rec.settle_timeout - web3.eth.blockNumber)
gevent.sleep(blockchain.poll_interval)
assert web3.eth.blockNumber >= channel_rec.settle_timeout
assert channel_id in channel_manager.channels
confirmed_open_channel.settle()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
assert channel_id not in channel_manager.channels
def test_close_confirmed_event(
channel_manager: ChannelManager,
confirmed_open_channel: Channel,
wait_for_blocks
):
blockchain = channel_manager.blockchain
channel_manager.wait_sync()
confirmed_open_channel.close()
wait_for_blocks(blockchain.n_confirmations)
gevent.sleep(blockchain.poll_interval)
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.is_closed is True
settle_block = channel_manager.channel_manager_contract.call().getChannelInfo(
channel_rec.sender,
channel_rec.receiver,
channel_rec.open_block_number
)[2]
assert channel_rec.settle_timeout == settle_block
def test_close_unconfirmed_event(
channel_manager: ChannelManager,
client: Client,
receiver_address: str,
wait_for_blocks
):
channel_manager.wait_sync()
blockchain = channel_manager.blockchain
# if unconfirmed channel is closed it should simply be forgotten
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) in channel_manager.unconfirmed_channels
assert (channel.sender, channel.block) not in channel_manager.channels
channel.close()
wait_for_blocks(channel_manager.blockchain.n_confirmations) # opening confirmed
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) not in channel_manager.unconfirmed_channels
assert (channel.sender, channel.block) in channel_manager.channels
wait_for_blocks(1) # closing confirmed
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) not in channel_manager.unconfirmed_channels
assert (channel.sender, channel.block) in channel_manager.channels
def test_close_unconfirmed_event(
channel_manager: ChannelManager,
client: Client,
receiver_address: str,
wait_for_blocks
):
channel_manager.wait_sync()
blockchain = channel_manager.blockchain
# if unconfirmed channel is closed it should simply be forgotten
channel = client.open_channel(receiver_address, 10)
wait_for_blocks(1)
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) in channel_manager.unconfirmed_channels
assert (channel.sender, channel.block) not in channel_manager.channels
channel.close()
wait_for_blocks(channel_manager.blockchain.n_confirmations) # opening confirmed
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) not in channel_manager.unconfirmed_channels
assert (channel.sender, channel.block) in channel_manager.channels
wait_for_blocks(1) # closing confirmed
gevent.sleep(blockchain.poll_interval)
assert (channel.sender, channel.block) not in channel_manager.unconfirmed_channels
assert (channel.sender, channel.block) in channel_manager.channels
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()
def test_payment(
channel_manager: ChannelManager,
confirmed_open_channel,
receiver_address: str,
receiver_privkey: str,
sender_privkey: str,
sender_address: str
):
channel_manager.wait_sync()
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.last_signature is None
assert channel_rec.balance == 0
# valid transfer
sig1 = encode_hex(confirmed_open_channel.create_transfer(2))
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 2, sig1)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
# transfer signed with wrong private key
invalid_sig = encode_hex(sign_balance_proof(
receiver_privkey, # should be sender's privkey
channel_rec.receiver,
channel_rec.open_block_number,
4,
channel_manager.channel_manager_contract.address
))
with pytest.raises(InvalidBalanceProof):
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 4,
invalid_sig)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
# transfer to different receiver
invalid_sig = encode_hex(sign_balance_proof(
sender_privkey,
sender_address, # should be receiver's address
channel_rec.open_block_number,
4,
channel_manager.channel_manager_contract.address
))
with pytest.raises(InvalidBalanceProof):
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 4,
invalid_sig)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
# transfer negative amount
invalid_sig = encode_hex(sign_balance_proof(
sender_privkey,
receiver_address,
channel_rec.open_block_number,
1, # should be greater than 2
channel_manager.channel_manager_contract.address
))
with pytest.raises(InvalidBalanceAmount):
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 1,
invalid_sig)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
# parameters should match balance proof
sig2 = encode_hex(confirmed_open_channel.create_transfer(2))
with pytest.raises(NoOpenChannel):
channel_manager.register_payment(receiver_address, channel_rec.open_block_number,
4, sig2)
with pytest.raises(NoOpenChannel):
channel_manager.register_payment(sender_address, channel_rec.open_block_number + 1,
4, sig2)
with pytest.raises(InvalidBalanceProof):
channel_manager.register_payment(sender_address, channel_rec.open_block_number,
5, sig2)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 4, sig2)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 4
assert channel_rec.last_signature == sig2
# should transfer up to deposit
sig3 = encode_hex(confirmed_open_channel.create_transfer(6))
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 10, sig3)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 10
assert channel_rec.last_signature == sig3
# transfer too much
invalid_sig = encode_hex(sign_balance_proof(
sender_privkey,
receiver_address,
channel_rec.open_block_number,
12, # should not be greater than 10
channel_manager.channel_manager_contract.address
))
with pytest.raises(InvalidBalanceProof):
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 12,
invalid_sig)
assert channel_rec.balance == 10
assert channel_rec.last_signature == sig3
def test_different_receivers(
web3: Web3,
make_account,
private_keys: List[str],
channel_manager_contract: Contract,
token_contract: Contract,
mine_sync_event,
client: Client,
sender_address: str,
wait_for_blocks,
use_tester: bool,
state_db_path: str
):
if not use_tester:
pytest.skip('This test takes several hours on real blockchains.')
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]
)
receiver1_address = privkey_to_addr(receiver1_privkey)
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
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()
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_payment(
channel_manager: ChannelManager,
confirmed_open_channel,
receiver_address: str,
receiver_privkey: str,
sender_privkey: str,
sender_address: str
):
channel_manager.wait_sync()
channel_id = (confirmed_open_channel.sender, confirmed_open_channel.block)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.last_signature is None
assert channel_rec.balance == 0
# valid transfer
sig1 = encode_hex(confirmed_open_channel.create_transfer(2))
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 2, sig1)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
# transfer signed with wrong private key
invalid_sig = encode_hex(sign_balance_proof(
receiver_privkey, # should be sender's privkey
channel_rec.receiver,
channel_rec.open_block_number,
4,
channel_manager.channel_manager_contract.address
))
with pytest.raises(InvalidBalanceProof):
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 4,
invalid_sig)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
# transfer to different receiver
invalid_sig = encode_hex(sign_balance_proof(
sender_privkey,
sender_address, # should be receiver's address
channel_rec.open_block_number,
4,
channel_manager.channel_manager_contract.address
))
with pytest.raises(InvalidBalanceProof):
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 4,
invalid_sig)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
# transfer negative amount
invalid_sig = encode_hex(sign_balance_proof(
sender_privkey,
receiver_address,
channel_rec.open_block_number,
1, # should be greater than 2
channel_manager.channel_manager_contract.address
))
with pytest.raises(InvalidBalanceAmount):
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 1,
invalid_sig)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
# parameters should match balance proof
sig2 = encode_hex(confirmed_open_channel.create_transfer(2))
with pytest.raises(NoOpenChannel):
channel_manager.register_payment(receiver_address, channel_rec.open_block_number,
4, sig2)
with pytest.raises(NoOpenChannel):
channel_manager.register_payment(sender_address, channel_rec.open_block_number + 1,
4, sig2)
with pytest.raises(InvalidBalanceProof):
channel_manager.register_payment(sender_address, channel_rec.open_block_number,
5, sig2)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 2
assert channel_rec.last_signature == sig1
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 4, sig2)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 4
assert channel_rec.last_signature == sig2
# should transfer up to deposit
sig3 = encode_hex(confirmed_open_channel.create_transfer(6))
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 10, sig3)
channel_rec = channel_manager.channels[channel_id]
assert channel_rec.balance == 10
assert channel_rec.last_signature == sig3
# transfer too much
invalid_sig = encode_hex(sign_balance_proof(
sender_privkey,
receiver_address,
channel_rec.open_block_number,
12, # should not be greater than 10
channel_manager.channel_manager_contract.address
))
with pytest.raises(InvalidBalanceProof):
channel_manager.register_payment(sender_address, channel_rec.open_block_number, 12,
invalid_sig)
assert channel_rec.balance == 10
assert channel_rec.last_signature == sig3