def test_is_channel_close_needed_paid():
""" Close the channel if the payee transfer is paid but the payer has not paid. """
amount = 10
expiration = 10
reveal_timeout = 5
for paid_state in ('payee_contract_withdraw', 'payee_balance_proof'):
paid_pair = make_transfer_pair(
payer=factories.HOP1,
payee=factories.HOP2,
initiator=factories.HOP3,
target=factories.HOP4,
amount=amount,
expiration=expiration,
reveal_timeout=reveal_timeout,
)
paid_pair.payee_state = paid_state
assert paid_pair.payer_route.state == CHANNEL_STATE_OPENED
safe_block = expiration - reveal_timeout - 1
assert mediator.is_channel_close_needed(paid_pair, safe_block) is False
unsafe_block = expiration - reveal_timeout
assert mediator.is_channel_close_needed(paid_pair, unsafe_block) is True
def test_is_channel_close_need_channel_closed():
""" If the channel is already closed the anser is always no. """
amount = 10
expiration = 10
reveal_timeout = 5
for state in MediationPairState.valid_payee_states:
pair = make_transfer_pair(
payer=factories.HOP1,
payee=factories.HOP2,
initiator=factories.HOP3,
target=factories.HOP4,
amount=amount,
expiration=expiration,
reveal_timeout=reveal_timeout,
)
pair.payee_state = state
pair.payer_route.state = CHANNEL_STATE_CLOSED
safe_block = expiration - reveal_timeout - 1
assert mediator.is_channel_close_needed(pair, safe_block) is False
unsafe_block = expiration - reveal_timeout
assert mediator.is_channel_close_needed(pair, unsafe_block) is False
def test_is_channel_close_needed_unpaid():
""" Don't close the channel if the payee transfer is not paid. """
amount = 10
expiration = 10
reveal_timeout = 5
# even if the secret is known by the payee, the transfer is paid only if a
# withdraw on-chain happened or if the mediator has sent a balance proof
for unpaid_state in ('payee_pending', 'payee_secret_revealed', 'payee_refund_withdraw'):
unpaid_pair = make_transfer_pair(
payer=factories.HOP1,
payee=factories.HOP2,
initiator=factories.HOP3,
target=factories.HOP4,
amount=amount,
expiration=expiration,
reveal_timeout=reveal_timeout,
)
unpaid_pair.payer_state = unpaid_state
assert unpaid_pair.payer_route.state == CHANNEL_STATE_OPENED
safe_block = expiration - reveal_timeout - 1
assert mediator.is_channel_close_needed(unpaid_pair, safe_block) is False
unsafe_block = expiration - reveal_timeout
assert mediator.is_channel_close_needed(unpaid_pair, unsafe_block) is False
def test_is_channel_close_needed_unpaid():
""" Don't close the channel if the payee transfer is not paid. """
amount = 10
expiration = 10
reveal_timeout = 5
# even if the secret is known by the payee, the transfer is paid only if a
# withdraw on-chain happened or if the mediator has sent a balance proof
for unpaid_state in ('payee_pending', 'payee_secret_revealed', 'payee_refund_withdraw'):
unpaid_pair = make_transfer_pair(
payer=factories.HOP1,
payee=factories.HOP2,
target=factories.HOP3,
amount=amount,
expiration=expiration,
reveal_timeout=reveal_timeout,
)
unpaid_pair.payer_state = unpaid_state
assert unpaid_pair.payer_route.state == 'available'
safe_block = expiration - reveal_timeout - 1
assert mediator.is_channel_close_needed(unpaid_pair, safe_block) is False
unsafe_block = expiration - reveal_timeout
assert mediator.is_channel_close_needed(unpaid_pair, unsafe_block) is False
def test_is_channel_close_need_channel_closed():
""" If the channel is already closed the anser is always no. """
amount = 10
expiration = 10
reveal_timeout = 5
for state in MediationPairState.valid_payee_states:
pair = make_transfer_pair(
payer=factories.HOP1,
payee=factories.HOP2,
initiator=factories.HOP3,
target=factories.HOP4,
amount=amount,
expiration=expiration,
reveal_timeout=reveal_timeout,
)
pair.payee_state = state
pair.payer_route.state = CHANNEL_STATE_CLOSED
safe_block = expiration - reveal_timeout - 1
assert mediator.is_channel_close_needed(pair, safe_block) is False
unsafe_block = expiration - reveal_timeout
assert mediator.is_channel_close_needed(pair, unsafe_block) is False
def test_is_channel_close_needed_paid():
""" Close the channel if the payee transfer is paid but the payer has not paid. """
amount = 10
expiration = 10
reveal_timeout = 5
for paid_state in ('payee_contract_withdraw', 'payee_balance_proof'):
paid_pair = make_transfer_pair(
payer=factories.HOP1,
payee=factories.HOP2,
initiator=factories.HOP3,
target=factories.HOP4,
amount=amount,
expiration=expiration,
reveal_timeout=reveal_timeout,
)
paid_pair.payee_state = paid_state
assert paid_pair.payer_route.state == CHANNEL_STATE_OPENED
safe_block = expiration - reveal_timeout - 1
assert mediator.is_channel_close_needed(paid_pair, safe_block) is False
unsafe_block = expiration - reveal_timeout
assert mediator.is_channel_close_needed(paid_pair, unsafe_block) is True
def test_is_channel_close_needed_closed():
amount = 10
expiration = 10
reveal_timeout = 5
paid_pair = make_transfer_pair(
payer=factories.HOP1,
payee=factories.HOP2,
target=factories.HOP3,
amount=amount,
expiration=expiration,
reveal_timeout=reveal_timeout,
)
paid_pair.payee_state = 'payee_balance_proof'
assert paid_pair.payer_route.state == 'available'
safe_block = expiration - reveal_timeout - 1
assert mediator.is_channel_close_needed(paid_pair, safe_block) is False
unsafe_block = expiration - reveal_timeout
assert mediator.is_channel_close_needed(paid_pair, unsafe_block) is True
def test_is_channel_close_needed_closed():
amount = 10
expiration = 10
reveal_timeout = 5
paid_pair = make_transfer_pair(
payer=factories.HOP1,
payee=factories.HOP2,
initiator=factories.HOP3,
target=factories.HOP4,
amount=amount,
expiration=expiration,
reveal_timeout=reveal_timeout,
)
paid_pair.payee_state = 'payee_balance_proof'
assert paid_pair.payer_route.state == CHANNEL_STATE_OPENED
safe_block = expiration - reveal_timeout - 1
assert mediator.is_channel_close_needed(paid_pair, safe_block) is False
unsafe_block = expiration - reveal_timeout
assert mediator.is_channel_close_needed(paid_pair, unsafe_block) is True
