def test_lowest_buy_price_quantity3(self):
'''
test lowest buy price quantity with sell transaction
'''
stock_db_connection = get_default_db_connection()
reset_table(stock_db_connection)
stock_transaction_table = StockTransactionTable(stock_db_connection)
# init transaction 1
stock_transaction_1 = StockTransaction()
stock_transaction_1.symbol = "601398"
stock_transaction_1.buy_or_sell = StockTransaction.BUY_FLAG
stock_transaction_1.date = date(2016, 5, 15)
stock_transaction_1.quantity = 200
stock_transaction_1.price = 4.51
stock_transaction_table.add_stock_transaction(stock_transaction_1)
stock_transaction_1.trans_id
# init transaction 2
stock_transaction_2 = StockTransaction()
stock_transaction_2.symbol = "601398"
stock_transaction_2.buy_or_sell = StockTransaction.SELL_FLAG
stock_transaction_2.date = date(2016, 5, 16)
stock_transaction_2.quantity = 100
stock_transaction_2.price = 4.81
stock_transaction_table.add_stock_transaction(stock_transaction_2)
stock_transaction_2.trans_id
with self.assertRaises(Exception):
StockTransaction.get_lowest_buy_price_quantity("601398")
return
def test_lowest_buy_price_quantity(self):
'''
test lowest buy price quantity
'''
stock_db_connection = get_default_db_connection()
reset_table(stock_db_connection)
stock_transaction_table = StockTransactionTable(stock_db_connection)
# init transaction 1
stock_transaction_1 = StockTransaction()
stock_transaction_1.symbol = "601398"
stock_transaction_1.buy_or_sell = StockTransaction.BUY_FLAG
stock_transaction_1.date = date(2016, 5, 15)
stock_transaction_1.quantity = 200
stock_transaction_1.price = 4.9
stock_transaction_table.add_stock_transaction(stock_transaction_1)
stock_transaction_1.trans_id
# init transaction 2
stock_transaction_2 = StockTransaction()
stock_transaction_2.symbol = "601398"
stock_transaction_2.buy_or_sell = StockTransaction.BUY_FLAG
stock_transaction_2.date = date(2016, 5, 16)
stock_transaction_2.quantity = 100
stock_transaction_2.price = 4.81
stock_transaction_table.add_stock_transaction(stock_transaction_2)
stock_transaction_2.trans_id
quantity = StockTransaction.get_lowest_buy_price_quantity("601398")
self.assertEqual(quantity, 100)
return
def test_close_stock_transaction(self):
'''
test_close_stock_transaction
'''
stock_db_connection = get_default_db_connection()
reset_table(stock_db_connection)
stock_transaction_table = StockTransactionTable(stock_db_connection)
# init transaction 1
stock_transaction_1 = StockTransaction()
stock_transaction_1.symbol = "601398"
stock_transaction_1.buy_or_sell = StockTransaction.BUY_FLAG
stock_transaction_1.date = datetime(2016, 5, 15, 0, 0, 0)
stock_transaction_1.quantity = 200
stock_transaction_1.price = 4.51
stock_transaction_table.add_stock_transaction(stock_transaction_1)
trans_id_1 = stock_transaction_1.trans_id
# init transaction 2
stock_transaction_2 = StockTransaction()
stock_transaction_2.symbol = "601398"
stock_transaction_2.buy_or_sell = StockTransaction.SELL_FLAG
stock_transaction_2.date = datetime(2016, 5, 16, 0, 0, 0)
stock_transaction_2.quantity = 200
stock_transaction_2.price = 4.81
stock_transaction_table.add_stock_transaction(stock_transaction_2)
trans_id_2 = stock_transaction_2.trans_id
stock_closed_transaction = \
StockClosedTransactionTable.close_transaction(stock_transaction_1,
stock_transaction_2)
self.assertEqual(stock_closed_transaction.symbol, "601398")
self.assertEqual(stock_closed_transaction.buy_price, 4.51)
self.assertEqual(stock_closed_transaction.sell_price, 4.81)
self.assertEqual(stock_closed_transaction.buy_date,
datetime(2016, 5, 15, 0, 0, 0))
self.assertEqual(stock_closed_transaction.sell_date,
datetime(2016, 5, 16, 0, 0, 0))
self.assertEqual(stock_closed_transaction.quantity, 200)
stock_transaction = \
stock_transaction_table.get_stock_transaction_by_trans_id(
trans_id_1)
self.assertIsNone(stock_transaction,
"stock_transaction_1 is not deleted")
stock_transaction = \
stock_transaction_table.get_stock_transaction_by_trans_id(
trans_id_2)
self.assertIsNone(stock_transaction,
"stock_transaction_2 is not deleted")
return
def complete_buy_transaction(symbol, price, quantity, conn=None):
'''
update DB after buy transaction
'''
if conn is None:
conn = get_default_db_connection()
session = conn.get_sessionmake()()
total_amount = price * quantity
stock_cash = session.query(StockCash).\
filter(StockCash.symbol == symbol).\
one_or_none()
if stock_cash is None:
session.close()
raise Exception("Save buy transaction failed")
stock_cash.amount = stock_cash.amount - total_amount
stock_transaction = StockTransaction()
stock_transaction.symbol = symbol
stock_transaction.buy_or_sell = "Buy"
stock_transaction.quantity = quantity
stock_transaction.price = price
stock_transaction.date = datetime.utcnow()
session.add(stock_transaction)
session.commit()
session.close()
return
def complete_buy_transaction(symbol, price, quantity, conn=None):
'''
update DB after buy transaction
'''
if conn is None:
conn = get_default_db_connection()
session = conn.get_sessionmake()()
stock_cash = session.query(StockCash).\
filter(StockCash.symbol == symbol).\
one_or_none()
if stock_cash is None:
session.close()
raise Exception("Save buy transaction failed")
LOGGER.debug("Amount before: {0}".format(stock_cash.amount))
stock_cash.amount = stock_cash.amount - \
price * quantity - \
buy_fee(symbol, price, quantity)
LOGGER.debug("Amount after: {0}".format(stock_cash.amount))
stock_transaction = StockTransaction()
stock_transaction.symbol = symbol
stock_transaction.buy_or_sell = "Buy"
stock_transaction.quantity = quantity
stock_transaction.price = price
stock_transaction.date = datetime.utcnow()
session.add(stock_transaction)
session.commit()
session.close()
return
def split_transaction(conn=None):
'''
split_transaction
'''
if conn is None:
db_connection = get_default_db_connection()
else:
db_connection = conn
session = db_connection.create_session()
query = session.query(StockTransaction).\
filter(StockTransaction.quantity > 100)
transactions = query.all()
for transaction in transactions:
quantity = transaction.quantity
i = 100
while i <= quantity:
trans = StockTransaction()
trans.buy_or_sell = transaction.buy_or_sell
trans.date = transaction.date
trans.price = transaction.price
trans.symbol = transaction.symbol
trans.quantity = 100
session.add(trans)
print("ADD")
i = i + 100
session.delete(transaction)
session.commit()
break
session.close()
return