def test_various_methods(self):
self.assertEqual(Fixed8.FD(), Fixed8(100000000))
self.assertEqual(Fixed8.FD(), Fixed8.One())
sat = Fixed8.Satoshi()
self.assertEqual(sat, Fixed8(1))
self.assertEqual(sat.value, 1)
negsat = Fixed8.NegativeSatoshi()
self.assertEqual(negsat, Fixed8(-1))
self.assertEqual(negsat.value, -1)
zero = Fixed8.Zero()
self.assertEqual(zero, Fixed8(0))
self.assertEqual(zero.value, 0)
decimal = 1.2
f8 = Fixed8.FromDecimal(decimal)
self.assertEqual(f8.value, f8.GetData())
f8 = Fixed8.TryParse(123.123)
f8 = Fixed8.TryParse(123)
self.assertEqual(f8.Size(), 8)
zero = Fixed8.TryParse(0)
self.assertEqual(zero, Fixed8(0))
self.assertEqual(Fixed8.TryParse("foo"), None)
self.assertEqual(Fixed8.TryParse(-1, require_positive=True), None)
def parse_send_from_params(self, params):
if len(params) not in [4, 5, 6]:
raise JsonRpcError(-32602, "Invalid params")
asset_id = get_asset_id(self.wallet, params[0])
if not type(asset_id) is UInt256:
raise JsonRpcError(-32602, "Invalid params")
address_from = params[1]
try:
address_from_sh = self.wallet.ToScriptHash(address_from)
except Exception:
raise JsonRpcError(-32602, "Invalid params")
address_to = params[2]
try:
address_to_sh = self.wallet.ToScriptHash(address_to)
except Exception:
raise JsonRpcError(-32602, "Invalid params")
amount = Fixed8.TryParse(params[3], require_positive=True)
if not amount or float(params[3]) == 0:
raise JsonRpcError(-32602, "Invalid params")
output = TransactionOutput(AssetId=asset_id,
Value=amount,
script_hash=address_to_sh)
contract_tx = ContractTransaction(outputs=[output])
fee = Fixed8.TryParse(params[4]) if len(params) >= 5 else Fixed8.Zero()
if fee < Fixed8.Zero():
raise JsonRpcError(-32602, "Invalid params")
change_addr_sh = None
if len(params) >= 6:
change_addr = params[5]
try:
change_addr_sh = self.wallet.ToScriptHash(change_addr)
except Exception:
raise JsonRpcError(-32602, "Invalid params")
return contract_tx, address_from_sh, fee, change_addr_sh
def parse_send_many_params(self, params):
if type(params[0]) is not list:
raise JsonRpcError(-32602, "Invalid params")
if len(params) not in [1, 2, 3]:
raise JsonRpcError(-32602, "Invalid params")
output = []
for info in params[0]:
asset = get_asset_id(self.wallet, info['asset'])
if not type(asset) is UInt256:
raise JsonRpcError(-32602, "Invalid params")
address = info["address"]
try:
address = self.wallet.ToScriptHash(address)
except Exception:
raise JsonRpcError(-32602, "Invalid params")
amount = Fixed8.TryParse(info["value"], require_positive=True)
if not amount or float(info["value"]) == 0:
raise JsonRpcError(-32602, "Invalid params")
tx_output = TransactionOutput(AssetId=asset,
Value=amount,
script_hash=address)
output.append(tx_output)
contract_tx = ContractTransaction(outputs=output)
fee = Fixed8.TryParse(params[1]) if len(params) >= 2 else Fixed8.Zero()
if fee < Fixed8.Zero():
raise JsonRpcError(-32602, "Invalid params")
change_addr_sh = None
if len(params) >= 3:
change_addr = params[2]
try:
change_addr_sh = self.wallet.ToScriptHash(change_addr)
except Exception:
raise JsonRpcError(-32602, "Invalid params")
return contract_tx, fee, change_addr_sh
def get_asset_attachments(params):
to_remove = []
neo_to_attach = None
gas_to_attach = None
for item in params:
if type(item) is str:
if '--attach-neo=' in item:
to_remove.append(item)
try:
neo_to_attach = Fixed8.TryParse(
int(item.replace('--attach-neo=', '')))
except Exception as e:
pass
if '--attach-gas=' in item:
to_remove.append(item)
try:
gas_to_attach = Fixed8.FromDecimal(
float(item.replace('--attach-gas=', '')))
except Exception as e:
pass
for item in to_remove:
params.remove(item)
return params, neo_to_attach, gas_to_attach
def AddOutput(self, asset, to_addr, amount):
"""
Specify an output for the transaction.
NOTE: Can be used multiple times to create multiple outputs.
Args:
asset: (str) the asset name or asset hash
to_addr: (str) the destination NEO address (e.g. 'AJQ6FoaSXDFzA6wLnyZ1nFN7SGSN2oNTc3')
amount: (int/decimal) the amount of the asset to send
"""
if asset[0:1] == "0x":
asset == asset[2:]
if asset.lower() == "neo":
assetId = self.neo_asset_id
elif asset == self.neo_asset_id:
assetId = self.neo_asset_id
elif asset.lower() == "gas":
assetId = self.gas_asset_id
elif asset == self.gas_asset_id:
assetId = self.gas_asset_id
else:
raise AssetError(
f'Asset {asset} not found. If trying to send tokens use the `buildTokenTransfer` function.'
)
dest_scripthash = Helper.AddrStrToScriptHash(
to_addr) # also verifies if the address is valid
if float(amount) == 0:
raise ValueError('Amount cannot be 0.')
f8amount = Fixed8.TryParse(amount, require_positive=True)
if f8amount is None:
raise ValueError('Invalid amount format.')
elif assetId == self.neo_asset_id and (f8amount.value /
Fixed8.D) != f8amount.ToInt():
raise ValueError('Incorrect amount precision.')
# check if the outputs exceed the available unspents
subtotal = []
if self.outputs:
for output in self.outputs:
if output.AssetId == assetId:
subtotal.append(output.Value.value)
total = f8amount.value + sum(subtotal)
total = float(Fixed8(total).ToString())
for asset in self.BALANCE:
if assetId == asset['asset_hash']:
if total > asset['amount']:
raise AssetError(
'Total outputs exceed the available unspents.')
self.outputs.append(
TransactionOutput(AssetId=UInt256.ParseString(assetId),
Value=f8amount,
script_hash=dest_scripthash))
def execute(self, arguments):
wallet = PromptData.Wallet
if len(arguments) < 4:
print("Please specify the required parameters")
return
if len(arguments) > 5:
# the 5th argument is the optional attributes,
print("Too many parameters supplied. Please check your command")
return
addr = arguments[0]
if not isValidPublicAddress(addr):
print("Invalid address specified")
return
try:
from_addr = wallet.ToScriptHash(addr)
except ValueError as e:
print(str(e))
return
asset_id = PromptUtils.get_asset_id(wallet, arguments[1])
if not asset_id:
print(f"Unknown asset id: {arguments[1]}")
return
try:
index = int(arguments[2])
except ValueError:
print(f"Invalid unspent index value: {arguments[2]}")
return
try:
divisions = int(arguments[3])
except ValueError:
print(f"Invalid divisions value: {arguments[3]}")
return
if divisions < 2:
print("Divisions cannot be lower than 2")
return
if len(arguments) == 5:
fee = Fixed8.TryParse(arguments[4], require_positive=True)
if not fee:
print(f"Invalid fee value: {arguments[4]}")
return
else:
fee = Fixed8.Zero()
return SplitUnspentCoin(wallet, asset_id, from_addr, index, divisions,
fee)
def get_asset_amount(amount, assetId):
f8amount = Fixed8.TryParse(amount, require_positive=True)
if f8amount is None:
print("invalid amount format")
return False
elif f8amount.value % pow(10, 8 - Blockchain.Default().GetAssetState(assetId.ToBytes()).Precision) != 0:
print("incorrect amount precision")
return False
return f8amount
def test_get_transaction(self):
# delete any tx in the mempool
self._clear_mempool()
# generate a new tx
tx = self._generate_tx(Fixed8.TryParse(5))
# try to get it
res = NodeLeader.Instance().GetTransaction(tx.Hash.ToBytes())
self.assertIsNone(res)
# now add it to the mempool
NodeLeader.Instance().MemPool[tx.Hash.ToBytes()] = tx
# and try to get it
res = NodeLeader.Instance().GetTransaction(tx.Hash.ToBytes())
self.assertTrue(res is tx)
def test_mempool_check_loop(self):
# delete any tx in the mempool
self._clear_mempool()
# add a tx which is already confirmed
self._add_existing_tx()
# and add a tx which is not confirmed
tx = self._generate_tx(Fixed8.TryParse(20))
NodeLeader.Instance().MemPool[tx.Hash.ToBytes()] = tx
# now remove the confirmed tx
NodeLeader.Instance().MempoolCheck()
self.assertEqual(
len(
list(
map(lambda hash: "0x%s" % hash.decode('utf-8'),
NodeLeader.Instance().MemPool.keys()))), 1)
def test_inventory_received(self):
leader = NodeLeader.Instance()
miner = MinerTransaction()
miner.Nonce = 1234
res = leader.InventoryReceived(miner)
self.assertFalse(res)
block = Blockchain.Default().GenesisBlock()
res2 = leader.InventoryReceived(block)
self.assertFalse(res2)
tx = self._generate_tx(Fixed8.TryParse(15))
res = leader.InventoryReceived(tx)
self.assertIsNone(res)
