def load(self):
exo_data = self.datasource.exostorage.load_exo(self.name)
if exo_data is not None:
self._position = Position.from_dict(exo_data['position'], self.datasource, self.date)
self._old_transactions = exo_data['transactions']
self._series = pickle.loads(exo_data['series'])
return exo_data
def test_from_dict(self):
pos = Position()
trans = Transaction(self.fut_contract,
self.date,
4.0,
12.3,
leg_name='fut1')
pos.add(trans)
trans2 = Transaction(self.fut_contract, self.date, -2.0, 13.3)
pos.add(trans2)
positions = pos.netpositions
self.assertEqual(1, len(positions))
self.assertEqual(100, pos._realized_pnl)
self.assertEqual(1, len(positions))
self.assertEqual(True, self.fut_contract in positions)
p = positions[self.fut_contract]
self.assertEqual(p['qty'], 2.0)
self.assertEqual(p['value'], trans.usdvalue / 2)
self.fut_contract._price = 14.3
self.assertEqual(100, pos._realized_pnl)
self.assertEqual(pos.pnl, 100 + 200)
pos_dic = pos.as_dict()
# Deserealizing position
p2 = Position.from_dict(pos_dic, self.datasource, self.date)
positions = p2.netpositions
self.assertEqual(100, p2._realized_pnl)
self.assertEqual(1, len(positions))
self.assertEqual(True, self.fut_contract in positions)
p = positions[self.fut_contract]
# Wrong - because we have new object from datsource
#self.fut_contract._price = 14.3
for k in positions.keys():
k._price = 14.3
self.assertEqual(p['qty'], 2.0)
self.assertEqual(p['value'], trans.usdvalue / 2)
self.assertEqual(1, len(p2.legs))
self.assertEqual(True, 'fut1' in p2.legs)
self.assertEqual(self.fut_contract, p2.legs['fut1'])
self.assertEqual(100, p2._realized_pnl)
self.assertEqual(p2.pnl, 100 + 200)
