def test_handle_onchain_secretreveal():
""" The target node must update the lock state when the secret is
registered in the blockchain.
"""
setup = make_target_state(
block_number=1,
expiration=1 + factories.UNIT_REVEAL_TIMEOUT,
)
assert factories.UNIT_SECRETHASH in setup.channel.partner_state.secrethashes_to_lockedlocks
offchain_secret_reveal_iteration = target.state_transition(
target_state=setup.new_state,
state_change=ReceiveSecretReveal(UNIT_SECRET, setup.initiator),
channel_state=setup.channel,
pseudo_random_generator=setup.pseudo_random_generator,
block_number=setup.block_number,
)
assert UNIT_SECRETHASH in setup.channel.partner_state.secrethashes_to_unlockedlocks
assert UNIT_SECRETHASH not in setup.channel.partner_state.secrethashes_to_lockedlocks
# Make sure that an emptyhash on chain reveal is rejected.
block_number_prior_the_expiration = setup.expiration - 2
onchain_reveal = ContractReceiveSecretReveal(
transaction_hash=factories.make_address(),
secret_registry_address=factories.make_address(),
secrethash=EMPTY_HASH_KECCAK,
secret=EMPTY_HASH,
block_number=block_number_prior_the_expiration,
)
onchain_secret_reveal_iteration = target.state_transition(
target_state=offchain_secret_reveal_iteration.new_state,
state_change=onchain_reveal,
channel_state=setup.channel,
pseudo_random_generator=setup.pseudo_random_generator,
block_number=block_number_prior_the_expiration,
)
unlocked_onchain = setup.channel.partner_state.secrethashes_to_onchain_unlockedlocks
assert EMPTY_HASH_KECCAK not in unlocked_onchain
# now let's go for the actual secret
onchain_reveal.secret = UNIT_SECRET
onchain_reveal.secrethash = UNIT_SECRETHASH
onchain_secret_reveal_iteration = target.state_transition(
target_state=offchain_secret_reveal_iteration.new_state,
state_change=onchain_reveal,
channel_state=setup.channel,
pseudo_random_generator=setup.pseudo_random_generator,
block_number=block_number_prior_the_expiration,
)
unlocked_onchain = setup.channel.partner_state.secrethashes_to_onchain_unlockedlocks
assert UNIT_SECRETHASH in unlocked_onchain
# Check that after we register a lock on-chain handling the block again will
# not cause us to attempt an onchain re-register
extra_block_handle_transition = target.handle_block(
target_state=onchain_secret_reveal_iteration.new_state,
channel_state=setup.channel,
block_number=block_number_prior_the_expiration + 1,
)
assert len(extra_block_handle_transition.events) == 0
def test_handle_onchain_secretreveal():
""" The target node must update the lock state when the secret is
registered in the blockchain.
"""
setup = make_target_state(
block_number=1,
expiration=1 + factories.UNIT_REVEAL_TIMEOUT,
)
assert factories.UNIT_SECRETHASH in setup.channel.partner_state.secrethashes_to_lockedlocks
offchain_secret_reveal_iteration = target.state_transition(
target_state=setup.new_state,
state_change=ReceiveSecretReveal(UNIT_SECRET, setup.initiator),
channel_state=setup.channel,
pseudo_random_generator=setup.pseudo_random_generator,
block_number=setup.block_number,
)
assert UNIT_SECRETHASH in setup.channel.partner_state.secrethashes_to_unlockedlocks
assert UNIT_SECRETHASH not in setup.channel.partner_state.secrethashes_to_lockedlocks
# Make sure that an emptyhash on chain reveal is rejected.
block_number_prior_the_expiration = setup.expiration - 2
onchain_reveal = ContractReceiveSecretReveal(
transaction_hash=factories.make_address(),
secret_registry_address=factories.make_address(),
secrethash=EMPTY_HASH_KECCAK,
secret=EMPTY_HASH,
block_number=block_number_prior_the_expiration,
)
onchain_secret_reveal_iteration = target.state_transition(
target_state=offchain_secret_reveal_iteration.new_state,
state_change=onchain_reveal,
channel_state=setup.channel,
pseudo_random_generator=setup.pseudo_random_generator,
block_number=block_number_prior_the_expiration,
)
unlocked_onchain = setup.channel.partner_state.secrethashes_to_onchain_unlockedlocks
assert EMPTY_HASH_KECCAK not in unlocked_onchain
# now let's go for the actual secret
onchain_reveal.secret = UNIT_SECRET
onchain_reveal.secrethash = UNIT_SECRETHASH
onchain_secret_reveal_iteration = target.state_transition(
target_state=offchain_secret_reveal_iteration.new_state,
state_change=onchain_reveal,
channel_state=setup.channel,
pseudo_random_generator=setup.pseudo_random_generator,
block_number=block_number_prior_the_expiration,
)
unlocked_onchain = setup.channel.partner_state.secrethashes_to_onchain_unlockedlocks
assert UNIT_SECRETHASH in unlocked_onchain
# Check that after we register a lock on-chain handling the block again will
# not cause us to attempt an onchain re-register
extra_block_handle_transition = target.handle_block(
target_state=onchain_secret_reveal_iteration.new_state,
channel_state=setup.channel,
block_number=block_number_prior_the_expiration + 1,
)
assert len(extra_block_handle_transition.events) == 0
def test_handle_onchain_secretreveal():
""" The target node must update the lock state when the secret is
registered in the blockchain.
"""
amount = 3
block_number = 1
expiration = block_number + factories.UNIT_REVEAL_TIMEOUT
initiator = factories.HOP1
our_address = factories.ADDR
secret = factories.UNIT_SECRET
pseudo_random_generator = random.Random()
channel_state, state = make_target_state(
our_address,
amount,
block_number,
initiator,
expiration,
)
assert factories.UNIT_SECRETHASH in channel_state.partner_state.secrethashes_to_lockedlocks
offchain_secret_reveal_iteration = target.state_transition(
state,
ReceiveSecretReveal(secret, initiator),
channel_state,
pseudo_random_generator,
block_number,
)
assert factories.UNIT_SECRETHASH in channel_state.partner_state.secrethashes_to_unlockedlocks
assert factories.UNIT_SECRETHASH not in channel_state.partner_state.secrethashes_to_lockedlocks
block_number_prior_the_expiration = expiration - 2
onchain_secret_reveal_iteration = target.state_transition(
offchain_secret_reveal_iteration.new_state,
ContractReceiveSecretReveal(
transaction_hash=factories.make_address(),
secret_registry_address=factories.make_address(),
secrethash=UNIT_SECRETHASH,
secret=UNIT_SECRET,
block_number=block_number_prior_the_expiration,
),
channel_state,
pseudo_random_generator,
block_number_prior_the_expiration,
)
unlocked_onchain = channel_state.partner_state.secrethashes_to_onchain_unlockedlocks
assert factories.UNIT_SECRETHASH in unlocked_onchain
# Check that after we register a lock on-chain handling the block again will
# not cause us to attempt an onchain re-register
extra_block_handle_transition = target.handle_block(
onchain_secret_reveal_iteration.new_state,
channel_state,
block_number_prior_the_expiration + 1,
)
assert len(extra_block_handle_transition.events) == 0
