def test_route_metadata_hashing():
properties = factories.RouteMetadataProperties()
one_route_metadata = factories.create(properties)
assert isinstance(one_route_metadata, RouteMetadata)
one_hash = one_route_metadata.hash
another_route_metadata = factories.create(properties)
another_hash = another_route_metadata.hash
assert one_hash == another_hash, "route metadata with same routes do not match"
inverted_route_metadata = factories.create(
factories.RouteMetadataProperties(
route=[factories.HOP2, factories.HOP1]))
inverted_route_hash = inverted_route_metadata.hash
assert one_hash != inverted_route_hash, "route metadata with inverted routes still match"
def test_locked_transfer_additional_hash_contains_route_metadata_hash():
one_locked_transfer = factories.create(
factories.LockedTransferProperties())
route_metadata = factories.create(
factories.RouteMetadataProperties(
route=[factories.HOP2, factories.HOP1]))
another_locked_transfer = factories.create(
factories.LockedTransferProperties(metadata=factories.create(
factories.MetadataProperties(routes=[route_metadata]))))
assert (
one_locked_transfer.message_hash !=
another_locked_transfer.message_hash
), "LockedTransfers with different routes should have different message hashes"
def test_resolve_routes(netting_channel_state, chain_state,
token_network_state):
route_metadata = factories.create(
factories.RouteMetadataProperties(route=[
netting_channel_state.our_state.address,
netting_channel_state.partner_state.address,
]))
route_states = resolve_routes(
routes=[route_metadata],
token_network_address=token_network_state.address,
chain_state=chain_state,
)
msg = "route resolved with wrong channel id"
channel_id = netting_channel_state.canonical_identifier.channel_identifier
assert route_states[0].forward_channel_id == channel_id, msg
def test_changing_route_metadata_will_invalidate_lock_transfer_signature():
one_locked_transfer = factories.create(
factories.LockedTransferProperties(sender=ADDRESS, pkey=PRIVKEY))
new_route_metadata = factories.create(
factories.RouteMetadataProperties(
route=[factories.HOP2, factories.HOP1]))
new_metadata = factories.create(
factories.Metadata(routes=[new_route_metadata]))
assert ADDRESS == recover(one_locked_transfer._data_to_sign(),
one_locked_transfer.signature
), "signature does not match signer address"
one_locked_transfer.metadata = new_metadata
assert ADDRESS != recover(
one_locked_transfer._data_to_sign(), one_locked_transfer.signature
), "signature should not be valid after data being altered"