def test_python_channel():
netting_channel = NettingChannelMock()
token_address = make_address()
privkey1, address1 = make_privkey_address()
address2 = make_address()
balance1 = 70
balance2 = 110
reveal_timeout = 5
settle_timeout = 15
our_state = ChannelEndState(address1, balance1, netting_channel.opened)
partner_state = ChannelEndState(address2, balance2, netting_channel.opened)
external_state = make_external_state()
test_channel = Channel(
our_state,
partner_state,
external_state,
token_address,
reveal_timeout,
settle_timeout,
)
assert test_channel.contract_balance == our_state.contract_balance
assert test_channel.balance == our_state.balance(partner_state)
assert test_channel.transferred_amount == our_state.transferred_amount
assert test_channel.distributable == our_state.distributable(partner_state)
assert test_channel.outstanding == our_state.locked()
assert test_channel.outstanding == 0
assert test_channel.locked == partner_state.locked()
assert test_channel.our_state.locked() == 0
assert test_channel.partner_state.locked() == 0
with pytest.raises(ValueError):
test_channel.create_directtransfer(
-10,
1 # TODO: fill in identifier
)
with pytest.raises(ValueError):
test_channel.create_directtransfer(
balance1 + 10,
1 # TODO: fill in identifier
)
amount1 = 10
directtransfer = test_channel.create_directtransfer(
amount1,
1 # TODO: fill in identifier
)
directtransfer.sign(privkey1, address1)
test_channel.register_transfer(directtransfer)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1
assert test_channel.transferred_amount == amount1
assert test_channel.distributable == balance1 - amount1
assert test_channel.outstanding == 0
assert test_channel.locked == 0
assert test_channel.our_state.locked() == 0
assert test_channel.partner_state.locked() == 0
secret = sha3('test_channel')
hashlock = sha3(secret)
amount2 = 10
fee = 0
expiration = settle_timeout - 5
mediatedtransfer = test_channel.create_mediatedtransfer(
address1,
address2,
fee,
amount2,
1, # TODO: fill in identifier
expiration,
hashlock,
)
mediatedtransfer.sign(privkey1, address1)
test_channel.register_transfer(mediatedtransfer)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1
assert test_channel.transferred_amount == amount1
assert test_channel.distributable == balance1 - amount1 - amount2
assert test_channel.outstanding == 0
assert test_channel.locked == amount2
assert test_channel.our_state.locked() == 0
assert test_channel.partner_state.locked() == amount2
test_channel.release_lock(secret)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1 - amount2
assert test_channel.transferred_amount == amount1 + amount2
assert test_channel.distributable == balance1 - amount1 - amount2
assert test_channel.outstanding == 0
assert test_channel.locked == 0
assert test_channel.our_state.locked() == 0
assert test_channel.partner_state.locked() == 0
def test_receiver_cannot_spend_locked_amount():
token_address = make_address()
privkey1, address1 = make_privkey_address()
privkey2, address2 = make_privkey_address()
balance1 = 33
balance2 = 11
reveal_timeout = 7
settle_timeout = 21
block_number = 7
our_state = ChannelEndState(address1, balance1, None, EMPTY_MERKLE_TREE)
partner_state = ChannelEndState(address2, balance2, None, EMPTY_MERKLE_TREE)
external_state = make_external_state()
test_channel = Channel(
our_state,
partner_state,
external_state,
token_address,
reveal_timeout,
settle_timeout,
)
amount1 = balance2
expiration = block_number + settle_timeout
receive_mediated_transfer0 = test_channel.create_mediatedtransfer(
address1,
address2,
fee=0,
amount=amount1,
identifier=1,
expiration=expiration,
hashlock=sha3('test_locked_amount_cannot_be_spent'),
)
receive_mediated_transfer0.sign(privkey2, address2)
test_channel.register_transfer(
block_number,
receive_mediated_transfer0,
)
# trying to send one unit of the locked token
amount2 = balance1 + 1
lock2 = Lock(
amount=amount2,
expiration=expiration,
hashlock=sha3('test_locked_amount_cannot_be_spent2'),
)
layers = compute_layers([sha3(lock2.as_bytes)])
tree2 = MerkleTreeState(layers)
locksroot2 = merkleroot(tree2)
send_mediated_transfer0 = MediatedTransfer(
identifier=1,
nonce=1,
token=token_address,
channel=test_channel.channel_address,
transferred_amount=0,
recipient=address2,
locksroot=locksroot2,
lock=lock2,
target=address2,
initiator=address1,
fee=0,
)
send_mediated_transfer0.sign(privkey1, address1)
# address1 balance is all locked
with pytest.raises(InsufficientBalance):
test_channel.register_transfer(
block_number,
send_mediated_transfer0,
)
def test_python_channel():
token_address = make_address()
privkey1, address1 = make_privkey_address()
address2 = make_address()
balance1 = 70
balance2 = 110
reveal_timeout = 5
settle_timeout = 15
block_number = 10
our_state = ChannelEndState(address1, balance1, None, EMPTY_MERKLE_TREE)
partner_state = ChannelEndState(address2, balance2, None, EMPTY_MERKLE_TREE)
external_state = make_external_state()
test_channel = Channel(
our_state,
partner_state,
external_state,
token_address,
reveal_timeout,
settle_timeout,
)
assert test_channel.contract_balance == our_state.contract_balance
assert test_channel.transferred_amount == our_state.transferred_amount
assert test_channel.distributable == our_state.contract_balance
assert test_channel.outstanding == our_state.amount_locked
assert test_channel.outstanding == 0
assert test_channel.locked == partner_state.amount_locked
assert test_channel.our_state.amount_locked == 0
assert test_channel.partner_state.amount_locked == 0
assert test_channel.get_next_nonce() == 1
with pytest.raises(ValueError):
test_channel.create_directtransfer(
-10,
identifier=1,
)
with pytest.raises(ValueError):
test_channel.create_directtransfer(
balance1 + 10,
identifier=1,
)
amount1 = 10
directtransfer = test_channel.create_directtransfer(
amount1,
identifier=1,
)
directtransfer.sign(privkey1, address1)
test_channel.register_transfer(
block_number,
directtransfer,
)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1
assert test_channel.transferred_amount == amount1
assert test_channel.distributable == balance1 - amount1
assert test_channel.outstanding == 0
assert test_channel.locked == 0
assert test_channel.our_state.amount_locked == 0
assert test_channel.partner_state.amount_locked == 0
assert test_channel.get_next_nonce() == 2
secret = sha3('test_channel')
hashlock = sha3(secret)
amount2 = 10
fee = 0
expiration = block_number + settle_timeout - 5
identifier = 1
mediatedtransfer = test_channel.create_mediatedtransfer(
address1,
address2,
fee,
amount2,
identifier,
expiration,
hashlock,
)
mediatedtransfer.sign(privkey1, address1)
test_channel.register_transfer(
block_number,
mediatedtransfer,
)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1
assert test_channel.transferred_amount == amount1
assert test_channel.distributable == balance1 - amount1 - amount2
assert test_channel.outstanding == 0
assert test_channel.locked == amount2
assert test_channel.our_state.amount_locked == amount2
assert test_channel.partner_state.amount_locked == 0
assert test_channel.get_next_nonce() == 3
secret_message = test_channel.create_secret(identifier, secret)
secret_message.sign(privkey1, address1)
test_channel.register_transfer(block_number, secret_message)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1 - amount2
assert test_channel.transferred_amount == amount1 + amount2
assert test_channel.distributable == balance1 - amount1 - amount2
assert test_channel.outstanding == 0
assert test_channel.locked == 0
assert test_channel.our_state.amount_locked == 0
assert test_channel.partner_state.amount_locked == 0
assert test_channel.get_next_nonce() == 4
def test_sender_cannot_overspend():
token_address = make_address()
privkey1, address1 = make_privkey_address()
address2 = make_address()
balance1 = 70
balance2 = 110
reveal_timeout = 5
settle_timeout = 15
block_number = 10
our_state = ChannelEndState(address1, balance1, None, EMPTY_MERKLE_TREE)
partner_state = ChannelEndState(address2, balance2, None, EMPTY_MERKLE_TREE)
external_state = make_external_state()
test_channel = Channel(
our_state,
partner_state,
external_state,
token_address,
reveal_timeout,
settle_timeout,
)
amount = balance1
expiration = block_number + settle_timeout
sent_mediated_transfer0 = test_channel.create_mediatedtransfer(
address1,
address2,
fee=0,
amount=amount,
identifier=1,
expiration=expiration,
hashlock=sha3('test_locked_amount_cannot_be_spent'),
)
sent_mediated_transfer0.sign(privkey1, address1)
test_channel.register_transfer(
block_number,
sent_mediated_transfer0,
)
lock2 = Lock(
amount=amount,
expiration=expiration,
hashlock=sha3('test_locked_amount_cannot_be_spent2'),
)
leaves = [
sha3(sent_mediated_transfer0.lock.as_bytes),
sha3(lock2.as_bytes),
]
tree2 = MerkleTreeState(compute_layers(leaves))
locksroot2 = merkleroot(tree2)
sent_mediated_transfer1 = MediatedTransfer(
identifier=2,
nonce=sent_mediated_transfer0.nonce + 1,
token=token_address,
channel=test_channel.channel_address,
transferred_amount=0,
recipient=address2,
locksroot=locksroot2,
lock=lock2,
target=address2,
initiator=address1,
fee=0,
)
sent_mediated_transfer1.sign(privkey1, address1)
# address1 balance is all locked
with pytest.raises(InsufficientBalance):
test_channel.register_transfer(
block_number,
sent_mediated_transfer1,
)
def test_python_channel():
asset_address = make_address()
privkey1, address1 = make_privkey_address()
address2 = make_address()
balance1 = 70
balance2 = 110
reveal_timeout = 5
settle_timeout = 15
our_state = ChannelEndState(address1, balance1)
partner_state = ChannelEndState(address2, balance2)
external_state = make_external_state()
test_channel = Channel(
our_state, partner_state, external_state,
asset_address, reveal_timeout, settle_timeout,
)
assert test_channel.contract_balance == our_state.contract_balance
assert test_channel.balance == our_state.balance(partner_state)
assert test_channel.transferred_amount == our_state.transferred_amount
assert test_channel.distributable == our_state.distributable(partner_state)
assert test_channel.outstanding == our_state.locked()
assert test_channel.outstanding == 0
assert test_channel.locked == partner_state.locked()
assert test_channel.our_state.locked() == 0
assert test_channel.partner_state.locked() == 0
with pytest.raises(ValueError):
test_channel.create_directtransfer(
-10,
1 # TODO: fill in identifier
)
with pytest.raises(ValueError):
test_channel.create_directtransfer(
balance1 + 10,
1 # TODO: fill in identifier
)
amount1 = 10
directtransfer = test_channel.create_directtransfer(
amount1,
1 # TODO: fill in identifier
)
directtransfer.sign(privkey1, address1)
test_channel.register_transfer(directtransfer)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1
assert test_channel.transferred_amount == amount1
assert test_channel.distributable == balance1 - amount1
assert test_channel.outstanding == 0
assert test_channel.locked == 0
assert test_channel.our_state.locked() == 0
assert test_channel.partner_state.locked() == 0
secret = sha3('test_channel')
hashlock = sha3(secret)
amount2 = 10
fee = 0
expiration = settle_timeout - 5
mediatedtransfer = test_channel.create_mediatedtransfer(
address1,
address2,
fee,
amount2,
1, # TODO: fill in identifier
expiration,
hashlock,
)
mediatedtransfer.sign(privkey1, address1)
test_channel.register_transfer(mediatedtransfer)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1
assert test_channel.transferred_amount == amount1
assert test_channel.distributable == balance1 - amount1 - amount2
assert test_channel.outstanding == 0
assert test_channel.locked == amount2
assert test_channel.our_state.locked() == 0
assert test_channel.partner_state.locked() == amount2
test_channel.release_lock(secret)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1 - amount2
assert test_channel.transferred_amount == amount1 + amount2
assert test_channel.distributable == balance1 - amount1 - amount2
assert test_channel.outstanding == 0
assert test_channel.locked == 0
assert test_channel.our_state.locked() == 0
assert test_channel.partner_state.locked() == 0
def test_python_channel():
token_address = make_address()
privkey1, address1 = make_privkey_address()
address2 = make_address()
balance1 = 70
balance2 = 110
reveal_timeout = 5
settle_timeout = 15
block_number = 10
our_state = ChannelEndState(address1, balance1, None, EMPTY_MERKLE_TREE)
partner_state = ChannelEndState(address2, balance2, None, EMPTY_MERKLE_TREE)
external_state = make_external_state()
test_channel = Channel(
our_state,
partner_state,
external_state,
token_address,
reveal_timeout,
settle_timeout,
)
assert test_channel.contract_balance == our_state.contract_balance
assert test_channel.transferred_amount == our_state.transferred_amount
assert test_channel.distributable == our_state.contract_balance
assert test_channel.outstanding == our_state.amount_locked
assert test_channel.outstanding == 0
assert test_channel.locked == partner_state.amount_locked
assert test_channel.our_state.amount_locked == 0
assert test_channel.partner_state.amount_locked == 0
assert test_channel.get_next_nonce() == 1
with pytest.raises(ValueError):
test_channel.create_directtransfer(
-10,
identifier=1,
)
with pytest.raises(ValueError):
test_channel.create_directtransfer(
balance1 + 10,
identifier=1,
)
amount1 = 10
directtransfer = test_channel.create_directtransfer(
amount1,
identifier=1,
)
directtransfer.sign(privkey1, address1)
test_channel.register_transfer(
block_number,
directtransfer,
)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1
assert test_channel.transferred_amount == amount1
assert test_channel.distributable == balance1 - amount1
assert test_channel.outstanding == 0
assert test_channel.locked == 0
assert test_channel.our_state.amount_locked == 0
assert test_channel.partner_state.amount_locked == 0
assert test_channel.get_next_nonce() == 2
secret = sha3(b'test_channel')
hashlock = sha3(secret)
amount2 = 10
fee = 0
expiration = block_number + settle_timeout - 5
identifier = 1
mediatedtransfer = test_channel.create_mediatedtransfer(
address1,
address2,
fee,
amount2,
identifier,
expiration,
hashlock,
)
mediatedtransfer.sign(privkey1, address1)
test_channel.register_transfer(
block_number,
mediatedtransfer,
)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1
assert test_channel.transferred_amount == amount1
assert test_channel.distributable == balance1 - amount1 - amount2
assert test_channel.outstanding == 0
assert test_channel.locked == amount2
assert test_channel.our_state.amount_locked == amount2
assert test_channel.partner_state.amount_locked == 0
assert test_channel.get_next_nonce() == 3
secret_message = test_channel.create_secret(identifier, secret)
secret_message.sign(privkey1, address1)
test_channel.register_transfer(block_number, secret_message)
assert test_channel.contract_balance == balance1
assert test_channel.balance == balance1 - amount1 - amount2
assert test_channel.transferred_amount == amount1 + amount2
assert test_channel.distributable == balance1 - amount1 - amount2
assert test_channel.outstanding == 0
assert test_channel.locked == 0
assert test_channel.our_state.amount_locked == 0
assert test_channel.partner_state.amount_locked == 0
assert test_channel.get_next_nonce() == 4
def test_receiver_cannot_spend_locked_amount():
token_address = make_address()
privkey1, address1 = make_privkey_address()
privkey2, address2 = make_privkey_address()
balance1 = 33
balance2 = 11
reveal_timeout = 7
settle_timeout = 21
block_number = 7
our_state = ChannelEndState(address1, balance1, None, EMPTY_MERKLE_TREE)
partner_state = ChannelEndState(address2, balance2, None, EMPTY_MERKLE_TREE)
external_state = make_external_state()
test_channel = Channel(
our_state,
partner_state,
external_state,
token_address,
reveal_timeout,
settle_timeout,
)
amount1 = balance2
expiration = block_number + settle_timeout
receive_mediated_transfer0 = test_channel.create_mediatedtransfer(
address1,
address2,
fee=0,
amount=amount1,
identifier=1,
expiration=expiration,
hashlock=sha3(b'test_locked_amount_cannot_be_spent'),
)
receive_mediated_transfer0.sign(privkey2, address2)
test_channel.register_transfer(
block_number,
receive_mediated_transfer0,
)
# trying to send one unit of the locked token
amount2 = balance1 + 1
lock2 = Lock(
amount=amount2,
expiration=expiration,
hashlock=sha3(b'test_locked_amount_cannot_be_spent2'),
)
layers = compute_layers([sha3(lock2.as_bytes)])
tree2 = MerkleTreeState(layers)
locksroot2 = merkleroot(tree2)
send_mediated_transfer0 = MediatedTransfer(
identifier=1,
nonce=1,
token=token_address,
channel=test_channel.channel_address,
transferred_amount=0,
recipient=address2,
locksroot=locksroot2,
lock=lock2,
target=address2,
initiator=address1,
fee=0,
)
send_mediated_transfer0.sign(privkey1, address1)
# address1 balance is all locked
with pytest.raises(InsufficientBalance):
test_channel.register_transfer(
block_number,
send_mediated_transfer0,
)
def test_sender_cannot_overspend():
token_address = make_address()
privkey1, address1 = make_privkey_address()
address2 = make_address()
balance1 = 70
balance2 = 110
reveal_timeout = 5
settle_timeout = 15
block_number = 10
our_state = ChannelEndState(address1, balance1, None, EMPTY_MERKLE_TREE)
partner_state = ChannelEndState(address2, balance2, None, EMPTY_MERKLE_TREE)
external_state = make_external_state()
test_channel = Channel(
our_state,
partner_state,
external_state,
token_address,
reveal_timeout,
settle_timeout,
)
amount = balance1
expiration = block_number + settle_timeout
sent_mediated_transfer0 = test_channel.create_mediatedtransfer(
address1,
address2,
fee=0,
amount=amount,
identifier=1,
expiration=expiration,
hashlock=sha3(b'test_locked_amount_cannot_be_spent'),
)
sent_mediated_transfer0.sign(privkey1, address1)
test_channel.register_transfer(
block_number,
sent_mediated_transfer0,
)
lock2 = Lock(
amount=amount,
expiration=expiration,
hashlock=sha3(b'test_locked_amount_cannot_be_spent2'),
)
leaves = [
sha3(sent_mediated_transfer0.lock.as_bytes),
sha3(lock2.as_bytes),
]
tree2 = MerkleTreeState(compute_layers(leaves))
locksroot2 = merkleroot(tree2)
sent_mediated_transfer1 = MediatedTransfer(
identifier=2,
nonce=sent_mediated_transfer0.nonce + 1,
token=token_address,
channel=test_channel.channel_address,
transferred_amount=0,
recipient=address2,
locksroot=locksroot2,
lock=lock2,
target=address2,
initiator=address1,
fee=0,
)
sent_mediated_transfer1.sign(privkey1, address1)
# address1 balance is all locked
with pytest.raises(InsufficientBalance):
test_channel.register_transfer(
block_number,
sent_mediated_transfer1,
)