def test_from_amounts(self):
pos = from_amounts(A('10.00 USD'))
self.assertEqual(Position(A("10 USD")), pos)
pos = from_amounts(A('10 HOOL'), A('510.00 USD'))
self.assertEqual(
Position(A("10 HOOL"), Cost(D('510'), 'USD', None, None)), pos)
def test_from_amounts(self):
pos = from_amounts(A('10.00 USD'))
self.assertEqual(Position(Lot("USD", None, None), D('10')), pos)
pos = from_amounts(A('10 HOOL'), A('510.00 USD'))
self.assertEqual(Position(Lot("HOOL", A('510 USD'), None), D('10')),
pos)
def get_position_market_value(position_, date, price_map):
"""Compute the market value of the position at a particular date.
If the price map does not contain price information, we avoid converting the
position and return itself, unchanged.
Args:
position: An instance of Position
date: A datetime.date instance, the date at which to market the instruments.
If the date provided is None, the inventory is valued at the latest market
prices.
price_map: A price map, as created by beancount.ops.prices.
Returns:
An inventory of market values per currency.
"""
lot = position_.lot
cost_currency = lot.cost.currency if lot.cost else None
if cost_currency:
base_quote = (lot.currency, cost_currency)
price_date, price_number = get_price(price_map, base_quote, date)
if price_number is None:
return position_
else:
new_amount = amount.Amount(position_.number * price_number,
cost_currency)
else:
new_amount = amount.Amount(position_.number, lot.currency)
return position.from_amounts(new_amount)