def test_next_nonce(delegate, identity_contract, accounts, owner_key):
source = identity_contract.address
destination = accounts[3]
meta_transaction = MetaTransaction(from_=source,
to=destination,
value=123,
nonce=delegate.calc_next_nonce(source))
signed_meta_transaction = meta_transaction.signed(owner_key)
assert delegate.calc_next_nonce(source) == 1
delegate.send_signed_meta_transaction(signed_meta_transaction)
assert delegate.calc_next_nonce(source) == 2
meta_transaction = MetaTransaction(from_=source,
to=destination,
value=123,
nonce=delegate.calc_next_nonce(source))
signed_meta_transaction = meta_transaction.signed(owner_key)
assert delegate.calc_next_nonce(source) == 2
delegate.send_signed_meta_transaction(signed_meta_transaction)
assert delegate.calc_next_nonce(source) == 3
def test_delegate_meta_transaction(delegate, identity, web3, accounts,
owner_key):
""""
Tests that a transaction is sent by the delegate upon receiving a meta-transaction.
"""
meta_transaction = MetaTransaction(
from_=identity.address,
to=accounts[2],
value=123,
data=(1234).to_bytes(10, byteorder="big"),
nonce=1,
extra_data=(123456789).to_bytes(10, byteorder="big"),
)
signed_meta_transaction = meta_transaction.signed(owner_key)
tx_hash = delegate.send_signed_meta_transaction(signed_meta_transaction)
tx = web3.eth.getTransaction(tx_hash)
assert tx["from"] == web3.eth.coinbase
assert HexBytes(tx["to"]) == identity.address
