chainlib-eth/tests/test_tx.py

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# standard imports
import os
import unittest
import logging
# local imports
from chainlib.eth.unittest.ethtester import EthTesterCase
from chainlib.eth.nonce import RPCNonceOracle
from chainlib.eth.gas import (
RPCGasOracle,
Gas,
)
from chainlib.eth.tx import (
unpack,
pack,
raw,
transaction,
TxFormat,
TxFactory,
Tx,
)
from chainlib.eth.contract import (
ABIContractEncoder,
ABIContractType,
)
from chainlib.eth.address import to_checksum_address
from hexathon import (
strip_0x,
add_0x,
)
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from chainlib.eth.block import Block
logging.basicConfig(level=logging.DEBUG)
logg = logging.getLogger()
class TxTestCase(EthTesterCase):
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def test_tx_reciprocal(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
gas_oracle = RPCGasOracle(self.rpc)
c = Gas(signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, chain_spec=self.chain_spec)
(tx_hash_hex, o) = c.create(self.accounts[0], self.accounts[1], 1024, tx_format=TxFormat.RLP_SIGNED)
tx = unpack(bytes.fromhex(strip_0x(o)), self.chain_spec)
self.assertEqual(tx['from'], self.accounts[0])
self.assertEqual(tx['to'], self.accounts[1])
def test_tx_pack(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
gas_oracle = RPCGasOracle(self.rpc)
mock_contract = to_checksum_address(add_0x(os.urandom(20).hex()))
f = TxFactory(self.chain_spec, signer=self.rpc)
enc = ABIContractEncoder()
enc.method('fooMethod')
enc.typ(ABIContractType.UINT256)
enc.uint256(13)
data = enc.get()
tx = f.template(self.accounts[0], mock_contract, use_nonce=True)
tx = f.set_code(tx, data)
(tx_hash, tx_signed_raw_hex) = f.finalize(tx, TxFormat.RLP_SIGNED)
logg.debug('tx result {}'.format(tx))
o = raw(tx_signed_raw_hex)
r = self.rpc.do(o)
o = transaction(tx_hash)
tx_rpc_src = self.rpc.do(o)
logg.debug('rpc src {}'.format(tx_rpc_src))
tx_signed_raw_bytes = bytes.fromhex(strip_0x(tx_signed_raw_hex))
tx_src = unpack(tx_signed_raw_bytes, self.chain_spec)
txo = Tx(tx_src)
tx_signed_raw_bytes_recovered = pack(txo, self.chain_spec)
logg.debug('o {}'.format(tx_signed_raw_bytes.hex()))
logg.debug('r {}'.format(tx_signed_raw_bytes_recovered.hex()))
self.assertEqual(tx_signed_raw_bytes, tx_signed_raw_bytes_recovered)
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def test_apply_block(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
gas_oracle = RPCGasOracle(self.rpc)
c = Gas(signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, chain_spec=self.chain_spec)
(tx_hash_hex, o) = c.create(self.accounts[0], self.accounts[1], 1024, tx_format=TxFormat.RLP_SIGNED)
tx_data = unpack(bytes.fromhex(strip_0x(o)), self.chain_spec)
block_hash = os.urandom(32).hex()
block = Block({
'hash': block_hash,
'number': 42,
'timestamp': 13241324,
'transactions': [],
})
with self.assertRaises(AttributeError):
tx = Tx(tx_data, block=block)
tx_unknown_hash = os.urandom(32).hex()
block.txs = [add_0x(tx_unknown_hash)]
block.txs.append(add_0x(tx_data['hash']))
tx = Tx(tx_data, block=block)
block.txs = [add_0x(tx_unknown_hash)]
block.txs.append(tx_data)
tx = Tx(tx_data, block=block)
def test_apply_receipt(self):
nonce_oracle = RPCNonceOracle(self.accounts[0], self.rpc)
gas_oracle = RPCGasOracle(self.rpc)
c = Gas(signer=self.signer, nonce_oracle=nonce_oracle, gas_oracle=gas_oracle, chain_spec=self.chain_spec)
(tx_hash_hex, o) = c.create(self.accounts[0], self.accounts[1], 1024, tx_format=TxFormat.RLP_SIGNED)
tx_data = unpack(bytes.fromhex(strip_0x(o)), self.chain_spec)
rcpt = {
'transaction_hash': os.urandom(32).hex(),
'block_hash': os.urandom(32).hex(),
'status': 1,
'block_number': 42,
'transaction_index': 1,
'logs': [],
'gas_used': 21000,
}
with self.assertRaises(ValueError):
tx = Tx(tx_data, rcpt=rcpt)
rcpt['transaction_hash'] = tx_data['hash']
tx = Tx(tx_data, rcpt=rcpt)
block_hash = os.urandom(32).hex()
block = Block({
'hash': block_hash,
'number': 42,
'timestamp': 13241324,
'transactions': [],
})
block.txs = [add_0x(tx_data['hash'])]
with self.assertRaises(ValueError):
tx = Tx(tx_data, rcpt=rcpt, block=block)
rcpt['block_hash'] = block.hash
tx = Tx(tx_data, rcpt=rcpt, block=block)
if __name__ == '__main__':
unittest.main()