def test_materialize_portfolio_cannot_sell(self):
with patch.object(Broker, '_generate_trade_instructions', return_value=([('BA', 3)], [])), \
patch.object(Broker, 'trade', return_value=False):
broker = Broker()
# Since I am patching "_generate_trade_instructions" these parameters
# don't really matter
with self.assertRaises(TradeError):
broker.materialize_portfolio(self.base_positions,
self.base_portfolio)
def test_materialize_portfolio_no_cash_to_buy(self):
'''
Tests that when there is no cash to buy trades, no trading will
be attempted
'''
with patch.object(Broker, '_generate_trade_instructions', return_value=([], ['BA', 'AAPL', 'MSFT'])), \
patch.object(td_ameritrade, 'positions_summary', return_value={
"equities": {},
"cash": {
"cashAvailableForTrading": 1,
}
}), \
patch.object(td_ameritrade, 'get_latest_equity_price', return_value=100), \
patch.object(Broker, 'trade', return_value=True) as mock_trade:
broker = Broker()
broker.materialize_portfolio(self.base_positions,
self.base_portfolio)
self.assertEqual(mock_trade.call_count, 0)
def main():
"""
Main function of this script
"""
try:
#(app_ns, portfolio_size) = parse_params()
(app_ns, portfolio_size) = ('sa', 3)
log.info("Application Parameters")
log.info("-app_namespace: %s" % app_ns)
log.info("-portfolio_size: %d" % portfolio_size)
# test all connectivity upfront, so if there any issues
# the problem becomes more apparent
connector_test.test_all_connectivity()
(current_portfolio,
security_recommendation) = portfolio_mgr_svc.get_service_inputs(app_ns)
log.info("Loaded recommendation set id: %s" %
security_recommendation.model['set_id'])
if current_portfolio is None:
log.info("Creating new portfolio")
current_portfolio = Portfolio(None)
current_portfolio.create_empty_portfolio(security_recommendation)
else:
log.info("Repricing portfolio")
current_portfolio.reprice(datetime.now())
(updated_portfolio, updated) = portfolio_mgr_svc.update_portfolio(
current_portfolio, security_recommendation, portfolio_size)
# See if there is anything that needs to be traded
market_open = td_ameritrade.equity_market_open(datetime.now())
if market_open == True:
broker = Broker()
broker.cancel_all_open_orders()
log.info("Market is open. Looking for trading opportunities")
current_positions = td_ameritrade.positions_summary()
try:
if broker.reconcile_portfolio(current_positions, updated_portfolio) == False:
log.info(
"Portfolio is not in sync with brokerage account positions. Positions will be rebalanced")
broker.materialize_portfolio(
current_positions, updated_portfolio)
finally:
updated_positions = td_ameritrade.positions_summary()
broker.synchronize_portfolio(
updated_positions, updated_portfolio)
updated_portfolio.recalc_returns()
broker.cancel_all_open_orders()
else:
log.info("Market is closed. Nothing to trade")
log.info("updated portfolio: %s" %
util.format_dict(updated_portfolio.to_dict()))
log.info("Saving updated portfolio")
updated_portfolio.save_to_s3(
app_ns, constants.S3_PORTFOLIO_OBJECT_NAME)
portfolio_mgr_svc.publish_current_returns(
updated_portfolio, updated, app_ns)
except Exception as e:
stack_trace = traceback.format_exc()
log.error("Could run script, because: %s" % (str(e)))
log.error(stack_trace)
aws_service_wrapper.notify_error(e, "Portfolio Manager Service",
stack_trace, app_ns)
