Files
catalyst/zipline/test/test_transforms.py
T

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2.6 KiB
Python

from datetime import timedelta
from collections import defaultdict
from unittest2 import TestCase
import zipline.test.factory as factory
import zipline.util as qutil
from zipline.finance.vwap import DailyVWAP, VWAPTransform, DailyVWAP_df
from zipline.finance.returns import ReturnsFromPriorClose
from zipline.finance.movingaverage import MovingAverage
from zipline.lines import SimulatedTrading
from zipline.simulator import AddressAllocator, Simulator
allocator = AddressAllocator(1000)
class ZiplineWithTransformsTestCase(TestCase):
leased_sockets = defaultdict(list)
def setUp(self):
qutil.configure_logging()
self.trading_environment = factory.create_trading_environment()
self.zipline_test_config = {
'allocator':allocator,
'sid':133
}
def test_vwap_tnfm(self):
zipline = SimulatedTrading.create_test_zipline(
**self.zipline_test_config
)
vwap = VWAPTransform("vwap_10", daycount=10)
zipline.add_transform(vwap)
zipline.simulate(blocking=True)
self.assertTrue(zipline.sim.ready())
self.assertFalse(zipline.sim.exception)
class FinanceTransformsTestCase(TestCase):
def setUp(self):
self.trading_environment = factory.create_trading_environment()
def test_vwap(self):
trade_history = factory.create_trade_history(
133,
[10.0, 10.0, 10.0, 11.0],
[100, 100, 100, 300],
timedelta(days=1),
self.trading_environment
)
vwap = DailyVWAP(daycount=2)
for trade in trade_history:
vwap.update(trade)
self.assertEqual(vwap.vwap, 10.75)
def test_returns(self):
trade_history = factory.create_trade_history(
133,
[10.0, 10.0, 10.0, 11.0],
[100, 100, 100, 300],
timedelta(days=1),
self.trading_environment
)
returns = ReturnsFromPriorClose()
for trade in trade_history:
returns.update(trade)
self.assertEqual(returns.returns, .1)
def test_moving_average(self):
trade_history = factory.create_trade_history(
133,
[10.0, 10.0, 10.0, 11.0],
[100, 100, 100, 300],
timedelta(days=1),
self.trading_environment
)
ma = MovingAverage(daycount=2)
for trade in trade_history:
ma.update(trade)
self.assertEqual(ma.average, 10.5)