def setUp(self):
self.FROM = 'Mx31e61a05adbd13c6b625262704bc305bf7725026'
self.PRIVATE_KEY = '07bc17abdcee8b971bb8723e36fe9d2523306d5ab2d683631693238e0f9df142'
self.SIGNED_TX = 'f8830102018a4d4e540000000000000002a9e88a4d4e5400000000000000880de0b6b3a76400008a54455354000000000000880de0b6b3a7640000808001b845f8431ba0e34be907a18acb5a1aed263ef419f32f5adc6e772b92f949906b497bba557df3a0291d7704980994f7a6f5950ca84720746b5928f21c3cfc5a5fbca2a9f4d35db0'
self.TX = MinterSellCoinTx(
**{
'nonce': 1,
'chain_id': MinterTx.TESTNET_CHAIN_ID,
'gas_coin': 'MNT',
'coin_to_sell': 'MNT',
'value_to_sell': 1,
'coin_to_buy': 'TEST',
'min_value_to_buy': 1
})
class TestMinterSellCoinTx(unittest.TestCase):
def setUp(self):
self.FROM = 'Mx31e61a05adbd13c6b625262704bc305bf7725026'
self.PRIVATE_KEY = '07bc17abdcee8b971bb8723e36fe9d2523306d5ab2d683631693238e0f9df142'
self.SIGNED_TX = 'f8830102018a4d4e540000000000000002a9e88a4d4e5400000000000000880de0b6b3a76400008a54455354000000000000880de0b6b3a7640000808001b845f8431ba0e34be907a18acb5a1aed263ef419f32f5adc6e772b92f949906b497bba557df3a0291d7704980994f7a6f5950ca84720746b5928f21c3cfc5a5fbca2a9f4d35db0'
self.TX = MinterSellCoinTx(
**{
'nonce': 1,
'chain_id': MinterTx.TESTNET_CHAIN_ID,
'gas_coin': 'MNT',
'coin_to_sell': 'MNT',
'value_to_sell': 1,
'coin_to_buy': 'TEST',
'min_value_to_buy': 1
})
def test_valid_tx(self):
"""
Is tx instance of needed TX class.
"""
self.assertIsInstance(self.TX, MinterSellCoinTx)
def test_sign_tx(self):
"""
Sign transaction and check signed transaction
"""
self.TX.sign(self.PRIVATE_KEY)
self.assertEqual(self.TX.signed_tx, self.SIGNED_TX)
def test_sign_with_signature(self):
self.TX.signature_type = MinterTx.SIGNATURE_SINGLE_TYPE
signature = self.TX.generate_signature(self.PRIVATE_KEY)
self.TX.sign(signature=signature)
self.assertEqual(self.TX.signed_tx, self.SIGNED_TX)
def test_from_raw(self):
tx = MinterTx.from_raw(raw_tx=self.SIGNED_TX)
self.assertEqual(tx.from_mx, self.FROM)
self.assertEqual(tx.coin_to_sell, self.TX.coin_to_sell)
self.assertEqual(tx.value_to_sell, self.TX.value_to_sell)
self.assertEqual(tx.coin_to_buy, self.TX.coin_to_buy)
self.assertEqual(tx.min_value_to_buy, self.TX.min_value_to_buy)
def convert(self, value, from_symbol, to_symbol, gas_coin=None):
"""
Конвертирует одну монету в другую
:param gas_coin: str 'SYMBOL' - монета для оплаты комиссии
:param value: int/float
:param from_symbol: str (Тикер монеты)
:param to_symbol: str (Тикер монеты)
:return:
"""
from_symbol = from_symbol.upper()
to_symbol = to_symbol.upper()
value = Decimal(str(value))
if gas_coin is None:
gas_coin = from_symbol
balances = self.get_balance(in_bip=True)
if balances[from_symbol] < value:
print(
f"На кошельке недостаточно {from_symbol}. Нужно {value}, а есть {balances[from_symbol]}"
)
return
# Генерируем транзакцию
nonce = self.API.get_nonce(self.address)
tx = MinterSellCoinTx(coin_to_sell=from_symbol,
value_to_sell=value,
coin_to_buy=to_symbol,
min_value_to_buy=0,
nonce=nonce,
gas_coin=gas_coin)
# Проверяем достаточно ли баланса на оплату комиссии
commission = to_bip(tx.get_fee())
if gas_coin == from_symbol and balances[from_symbol] < (value +
commission):
print(
f"На кошельке недостаточно {from_symbol} для оплаты комиссии {commission}\n"
f"Баланс: {round(balances[from_symbol], 2)}\n"
f"Нужно: {value + commission} (+{value + commission - round(balances[from_symbol], 2)})"
)
return
elif balances[gas_coin] < commission:
print(
f"На кошельке недостаточно {gas_coin} для оплаты комиссии {commission}\n"
f"Баланс: {round(balances[gas_coin], 2)}\n"
f"Нужно: {commission}")
return
# Отправляем транзакицю
tx.sign(private_key=self.private_key)
r = self.API.send_transaction(tx.signed_tx)
try:
if r['result']['code'] == 0:
print(f'{from_symbol} сконвертирован в {to_symbol}')
self._wait_for_nonce(
nonce
) # Ждем nonce, чтобы предотвратить отправку нескольких транзакций в блоке
except Exception:
print(
f'Не удалось сконвертировать {from_symbol} в {to_symbol}\nServer response: {r}'
)
return r