def test_reject_incorrect_contract_address(self):
v = random.randint(1, 1000000000)
faucets.ether(self.fwd.address, v)
beneficiary = fresh.address()
# check the initial balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), v)
self.assertEqual(w3.eth.getBalance(beneficiary), 0)
# make a successful transaction
tx = self.fwd(
target=beneficiary,
value=v,
).sign(self.pk).transact(faucets.random())
# check the intermediate balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), 0)
self.assertEqual(w3.eth.getBalance(beneficiary), v)
# deploy another contract with the same owner and same balance
other = self.deploy(address(self.pk))
faucets.ether(other.address, v)
# try sending the same input in another call to the new contract
with self.assertRaises(ValueError):
w3.eth.sendTransaction({
"from": faucets.random(),
"to": other.address,
"data": w3.eth.getTransaction(tx).input
})
# check the final balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), 0)
self.assertEqual(w3.eth.getBalance(other.address), v)
self.assertEqual(w3.eth.getBalance(beneficiary), v)
def test_reject_incorrect_target(self):
value = random.randint(1, 1000000000)
faucets.ether(self.fwd.address, value)
beneficiary = fresh.address()
# check the initial balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), value)
self.assertEqual(w3.eth.getBalance(beneficiary), 0)
# sign a successful transaction
f = self.fwd(
target=beneficiary,
value=value,
data=b'',
nonce=None,
).sign(self.pk)
f.target = fresh.address()
with self.assertRaises(ValueError):
self.fwd.transact(f, originator=faucets.random())
self.assertEqual(w3.eth.getBalance(f.target), 0)
self.assertEqual(w3.eth.getBalance(beneficiary), 0)
self.assertEqual(w3.eth.getBalance(self.fwd.address), value)
def test_reject_incorrect_private_key(self):
v = random.randint(1, 1000000000)
faucets.ether(self.fwd.address, v)
beneficiary = fresh.address()
# check the initial balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), v)
self.assertEqual(w3.eth.getBalance(beneficiary), 0)
# try calling the contract with an incorrect private key
with self.assertRaises(ValueError):
self.fwd(
target=beneficiary,
value=v,
).sign(fresh.private_key()).transact(faucets.random())
# check the final balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), v)
self.assertEqual(w3.eth.getBalance(beneficiary), 0)
def test_transfer_erc20(self):
# provision a coin and some tokens
f = faucets.random()
contract = deploy(contracts['Coin'], faucet=f)
v = random.randint(0, 1000)
contract.functions.transfer(self.fwd.address, v).transact({'from': f})
# pick a beneficiary
beneficiary = fresh.address()
# check the initial balances
self.assertEqual(
contract.functions.balanceOf(self.fwd.address).call(), v)
self.assertEqual(contract.functions.balanceOf(beneficiary).call(), 0)
# send all tokens
self.fwd(contract.functions.transfer(beneficiary, v)).sign(
self.pk).transact(faucets.random())
# check the final balances
self.assertEqual(
contract.functions.balanceOf(self.fwd.address).call(), 0)
self.assertEqual(contract.functions.balanceOf(beneficiary).call(), v)
def test_send_ether(self):
# provision some eth
v = random.randint(1, 1000000000)
faucets.ether(self.fwd.address, v)
# pick a beneficiary
beneficiary = fresh.address()
# check the initial balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), v)
self.assertEqual(w3.eth.getBalance(beneficiary), 0)
# send all ether
self.fwd(
target=beneficiary,
value=v,
).sign(self.pk).transact(faucets.random())
# check that the nonce got bumped
self.assertEqual(self.fwd.nonce(), 1)
# check the final balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), 0)
self.assertEqual(w3.eth.getBalance(beneficiary), v)
def test_reject_incorrect_nonce(self):
v = random.randint(1, 1000000000)
faucets.ether(self.fwd.address, v)
beneficiary = fresh.address()
# check the initial balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), v)
self.assertEqual(w3.eth.getBalance(beneficiary), 0)
# try calling the contract with an incorrect nonce
correct_nonce = self.fwd.nonce()
ns = list(filter(lambda i: i != correct_nonce, range(100000)))
nonce = random.choice(ns)
with self.assertRaises(ValueError):
self.fwd(
target=beneficiary,
value=v,
nonce=nonce,
).sign(self.pk).transact(faucets.random())
# check the final balances
self.assertEqual(w3.eth.getBalance(self.fwd.address), v)
self.assertEqual(w3.eth.getBalance(beneficiary), 0)
def test_state_empty(self):
contract = deploy(contracts['State'])
self.assertEqual(contract.functions.fetch().call(), 0)
self.assertEqual(contract.functions.fetch(fresh.address()).call(), 0)