def test_str(mock_exchange_class):
exchange = mock_exchange_class.return_value
exchange.options = ExchangeOptions()
exchange.id = "fake_exchange_id"
exchange.name = "coinbase"
exchange.clock = mock.Mock()
exchange.clock.step = 0
exchange.quote_price = mock.Mock(return_value=Decimal(7000.00))
order_spec = OrderSpec(side=TradeSide.BUY,
trade_type=TradeType.MARKET,
exchange_pair=ExchangePair(exchange, USD / BTC))
pattern = re.compile("<[A-Z][a-zA-Z]*:\\s(\\w+=.*,\\s)*(\\w+=.*)>")
string = str(order_spec)
assert string
assert string == pattern.fullmatch(string).string
def test_transfer():
exchange = mock.Mock()
price = Decimal(9750.19).quantize(Decimal(10)**-2)
exchange.quote_price = lambda pair: price
exchange.name = "coinbase"
order = mock.Mock()
order.path_id = "fake_id"
exchange_pair = ExchangePair(exchange, USD / BTC)
source = Wallet(exchange, 18903.89 * USD)
source.lock(917.07 * USD, order, "test")
target = Wallet(exchange, 3.79283997 * BTC)
quantity = (256.19 * USD).lock_for("fake_id")
commission = (2.99 * USD).lock_for("fake_id")
Wallet.transfer(source,
target,
quantity,
commission,
exchange_pair,
"transfer")
source = Wallet(exchange, 3.79283997 * BTC)
source.lock(3.00000029 * BTC, order, "test")
target = Wallet(exchange, 18903.89 * USD)
quantity = (2.19935873 * BTC).lock_for("fake_id")
commission = (0.00659732 * BTC).lock_for("fake_id")
Wallet.transfer(source,
target,
quantity,
commission,
exchange_pair,
"transfer")
def test_on_fill(mock_trade_class, mock_exchange_class):
exchange = mock_exchange_class.return_value
exchange.options.max_trade_size = 1e6
exchange.id = "fake_exchange_id"
exchange.name = "coinbase"
exchange.quote_price = lambda pair: Decimal(7000.00)
broker = Broker()
broker.exchanges = [exchange]
wallets = [Wallet(exchange, 10000 * USD), Wallet(exchange, 0 * BTC)]
portfolio = Portfolio(USD, wallets)
order = Order(step=0,
exchange_pair=ExchangePair(exchange, USD / BTC),
side=TradeSide.BUY,
trade_type=TradeType.MARKET,
quantity=5200.00 * USD,
portfolio=portfolio,
price=7000.00)
order.attach(broker)
order.execute()
broker._executed[order.id] = order
trade = mock_trade_class.return_value
trade.quantity = 5197.00 * USD
trade.commission = 3.00 * USD
trade.order_id = order.id
assert order.status == OrderStatus.OPEN
order.fill(trade)
assert order.status == OrderStatus.FILLED
assert order.remaining == 0
assert trade in broker.trades[order.id]
def test_on_fill_with_complex_order(mock_trade_class, mock_exchange_class):
exchange = mock_exchange_class.return_value
exchange.options.max_trade_size = 1e6
exchange.id = "fake_exchange_id"
exchange.name = "coinbase"
exchange.quote_price = lambda pair: Decimal(7000.00)
broker = Broker()
broker.exchanges = [exchange]
wallets = [Wallet(exchange, 10000 * USD), Wallet(exchange, 0 * BTC)]
portfolio = Portfolio(USD, wallets)
side = TradeSide.BUY
order = Order(step=0,
exchange_pair=ExchangePair(exchange, USD / BTC),
side=TradeSide.BUY,
trade_type=TradeType.MARKET,
quantity=5200.00 * USD,
portfolio=portfolio,
price=Decimal(7000.00))
risk_criteria = Stop("down", 0.03) ^ Stop("up", 0.02)
risk_management = OrderSpec(
side=TradeSide.SELL if side == TradeSide.BUY else TradeSide.BUY,
trade_type=TradeType.MARKET,
exchange_pair=ExchangePair(exchange, USD / BTC),
criteria=risk_criteria)
order += risk_management
order.attach(broker)
order.execute()
broker._executed[order.id] = order
# Execute fake trade
price = Decimal(7000.00)
scale = order.price / price
commission = 3.00 * USD
base_size = scale * order.size - commission.size
trade = mock_trade_class.return_value
trade.order_id = order.id
trade.size = base_size
trade.quantity = base_size * USD
trade.price = price
trade.commission = commission
base_wallet = portfolio.get_wallet(exchange.id, USD)
quote_wallet = portfolio.get_wallet(exchange.id, BTC)
base_size = trade.size + trade.commission.size
quote_size = (order.price / trade.price) * (trade.size / trade.price)
base_wallet.withdraw(quantity=Quantity(USD,
size=base_size,
path_id=order.path_id),
reason="test")
quote_wallet.deposit(quantity=Quantity(BTC,
size=quote_size,
path_id=order.path_id),
reason="test")
assert trade.order_id in broker.executed.keys()
assert trade not in broker.trades
assert broker.unexecuted == []
order.fill(trade)
assert order.remaining == 0
assert trade in broker.trades[order.id]
assert broker.unexecuted != []
def assert_execute_order(
current_price,
base_balance,
quote_balance,
order_side,
order_quantity,
order_price,
):
mock_clock = mock.Mock()
clock = mock_clock.return_value
clock.step = 3
base = base_balance.instrument
quote = quote_balance.instrument
current_price = Decimal(current_price).quantize(
Decimal(10)**-base.precision)
order_price = Decimal(order_price).quantize(Decimal(10)**-base.precision)
options = ExchangeOptions()
mock_exchange = mock.Mock()
exchange = mock_exchange.return_value
exchange.name = "coinbase"
exchange.options = options
exchange.quote_price = lambda pair: current_price
base_wallet = Wallet(exchange, base_balance)
quote_wallet = Wallet(exchange, quote_balance)
portfolio = Portfolio(USD, [base_wallet, quote_wallet])
order = Order(step=1,
side=order_side,
trade_type=TradeType.MARKET,
exchange_pair=ExchangePair(exchange, base / quote),
quantity=order_quantity,
portfolio=portfolio,
price=order_price,
path_id="fake_id")
order.status = OrderStatus.OPEN
if order_side == TradeSide.BUY:
trade = execute_buy_order(
order,
base_wallet,
quote_wallet,
current_price=current_price,
options=options,
clock=clock,
)
base_balance = base_wallet.locked['fake_id'].size
quote_balance = quote_wallet.locked['fake_id'].size
expected_base_balance = order_quantity.size - (trade.size +
trade.commission.size)
expected_quote_balance = trade.size / current_price
expected_base_balance = expected_base_balance.quantize(
Decimal(10)**-base.precision)
expected_quote_balance = expected_quote_balance.quantize(
Decimal(10)**-quote.precision)
assert base_balance == expected_base_balance
assert quote_balance == expected_quote_balance
else:
trade = execute_sell_order(
order,
base_wallet,
quote_wallet,
current_price=current_price,
options=options,
clock=clock,
)
base_balance = base_wallet.locked['fake_id'].size
quote_balance = quote_wallet.locked['fake_id'].size
expected_base_balance = trade.size * current_price
expected_base_balance = expected_base_balance.quantize(
Decimal(10)**-base.precision)
assert base_balance == expected_base_balance
assert quote_balance == 0