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catalyst/tests/test_continuous_futures.py
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Eddie Hebert 9a51efc7d2 Merge pull request #1565 from quantopian/fix-offset-history 
BUG: Fix continuous future history with offsets.
2016-10-28 09:44:34 -04:00

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#
# Copyright 2016 Quantopian, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from textwrap import dedent
from numpy import (
arange,
array,
int64,
full,
repeat,
tile,
)
from numpy.testing import assert_almost_equal
import pandas as pd
from pandas import Timestamp, DataFrame
from zipline import TradingAlgorithm
from zipline.assets.continuous_futures import OrderedContracts
from zipline.data.minute_bars import FUTURES_MINUTES_PER_DAY
from zipline.testing.fixtures import (
WithCreateBarData,
WithBcolzFutureMinuteBarReader,
WithSimParams,
ZiplineTestCase,
)
class ContinuousFuturesTestCase(WithCreateBarData,
WithSimParams,
WithBcolzFutureMinuteBarReader,
ZiplineTestCase):
START_DATE = pd.Timestamp('2015-01-05', tz='UTC')
END_DATE = pd.Timestamp('2016-10-19', tz='UTC')
SIM_PARAMS_START = pd.Timestamp('2016-01-26', tz='UTC')
SIM_PARAMS_END = pd.Timestamp('2016-01-28', tz='UTC')
SIM_PARAMS_DATA_FREQUENCY = 'minute'
TRADING_CALENDAR_STRS = ('us_futures',)
TRADING_CALENDAR_PRIMARY_CAL = 'us_futures'
@classmethod
def make_root_symbols_info(self):
return pd.DataFrame({
'root_symbol': ['FO'],
'root_symbol_id': [1],
'exchange': ['CME']})
@classmethod
def make_futures_info(self):
return DataFrame({
'symbol': ['FOF16', 'FOG16', 'FOH16', 'FOJ16', 'FOK16', 'FOF22'],
'root_symbol': ['FO'] * 6,
'asset_name': ['Foo'] * 6,
'start_date': [Timestamp('2015-01-05', tz='UTC'),
Timestamp('2015-02-05', tz='UTC'),
Timestamp('2015-03-05', tz='UTC'),
Timestamp('2015-04-05', tz='UTC'),
Timestamp('2015-05-05', tz='UTC'),
Timestamp('2021-01-05', tz='UTC')],
'end_date': [Timestamp('2016-08-19', tz='UTC'),
Timestamp('2016-09-19', tz='UTC'),
Timestamp('2016-10-19', tz='UTC'),
Timestamp('2016-11-19', tz='UTC'),
Timestamp('2016-12-19', tz='UTC'),
Timestamp('2022-08-19', tz='UTC')],
'notice_date': [Timestamp('2016-01-27', tz='UTC'),
Timestamp('2016-02-26', tz='UTC'),
Timestamp('2016-03-24', tz='UTC'),
Timestamp('2016-04-26', tz='UTC'),
Timestamp('2016-05-26', tz='UTC'),
Timestamp('2022-01-26', tz='UTC')],
'expiration_date': [Timestamp('2016-01-27', tz='UTC'),
Timestamp('2016-02-26', tz='UTC'),
Timestamp('2016-03-24', tz='UTC'),
Timestamp('2016-04-26', tz='UTC'),
Timestamp('2016-05-26', tz='UTC'),
Timestamp('2022-01-26', tz='UTC')],
'auto_close_date': [Timestamp('2016-01-27', tz='UTC'),
Timestamp('2016-02-26', tz='UTC'),
Timestamp('2016-03-24', tz='UTC'),
Timestamp('2016-04-26', tz='UTC'),
Timestamp('2016-05-26', tz='UTC'),
Timestamp('2022-01-26', tz='UTC')],
'tick_size': [0.001] * 6,
'multiplier': [1000.0] * 6,
'exchange': ['CME'] * 6,
})
@classmethod
def make_future_minute_bar_data(cls):
tc = cls.trading_calendar
start = pd.Timestamp('2016-01-26', tz='UTC')
end = pd.Timestamp('2016-04-29', tz='UTC')
dts = tc.minutes_for_sessions_in_range(start, end)
sessions = tc.sessions_in_range(start, end)
# Generate values in the XXY.YYY space, with XX representing the
# session and Y.YYY representing the minute within the session.
# e.g. the close of the 23rd session would be 231.440.
r = 10.0
day_markers = repeat(
arange(r, r * len(sessions) + r, r),
FUTURES_MINUTES_PER_DAY)
r = 0.001
min_markers = tile(
arange(r, r * FUTURES_MINUTES_PER_DAY + r, r),
len(sessions))
markers = day_markers + min_markers
# Volume uses a similar scheme as above but times 1000.
r = 10.0 * 1000
vol_day_markers = repeat(
arange(r, r * len(sessions) + r, r, dtype=int64),
FUTURES_MINUTES_PER_DAY)
r = 0.001 * 1000
vol_min_markers = tile(
arange(r, r * FUTURES_MINUTES_PER_DAY + r, r, dtype=int64),
len(sessions))
vol_markers = vol_day_markers + vol_min_markers
base_df = pd.DataFrame(
{
'open': full(len(dts), 102000.0) + markers,
'high': full(len(dts), 109000.0) + markers,
'low': full(len(dts), 101000.0) + markers,
'close': full(len(dts), 105000.0) + markers,
'volume': full(len(dts), 10000, dtype=int64) + vol_markers,
},
index=dts)
# Add the sid to the ones place of the prices, so that the ones
# place can be used to eyeball the source contract.
# For volume roll tests end sid volume early.
# FOF16 cuts out day before autoclose of 01-26
# FOG16 cuts out on autoclose
# FOH16 cuts out 4 days before autoclose
# FOJ16 cuts out 3 days before autoclose
sid_to_vol_stop_session = {
0: Timestamp('2016-01-26', tz='UTC'),
1: Timestamp('2016-02-26', tz='UTC'),
2: Timestamp('2016-03-18', tz='UTC'),
3: Timestamp('2016-04-20', tz='UTC'),
}
for i in range(6):
df = base_df.copy()
df += i * 10000
if i in sid_to_vol_stop_session:
vol_stop_session = sid_to_vol_stop_session[i]
m_open = tc.open_and_close_for_session(vol_stop_session)[0]
loc = dts.searchsorted(m_open)
# Add a little bit of noise to roll. So that checks for exacly
# 0 do not work, since there may be stragglers after a roll.
df.volume.values[loc] = 1000
df.volume.values[loc + 1:] = 0
j = i - 1
if j in sid_to_vol_stop_session:
non_primary_end = sid_to_vol_stop_session[j] - sessions.freq
m_close = tc.open_and_close_for_session(non_primary_end)[1]
loc = dts.searchsorted(m_close)
# Add some volume before a roll, since a contracted may be
# entered earlier than when it is the primary.
df.volume.values[:loc] = 2000
yield i, df
def test_create_continuous_future(self):
cf_primary = self.asset_finder.create_continuous_future(
'FO', 0, 'calendar')
self.assertEqual(cf_primary.root_symbol, 'FO')
self.assertEqual(cf_primary.offset, 0)
self.assertEqual(cf_primary.roll_style, 'calendar')
retrieved_primary = self.asset_finder.retrieve_asset(
cf_primary.sid)
self.assertEqual(retrieved_primary, cf_primary)
cf_secondary = self.asset_finder.create_continuous_future(
'FO', 1, 'calendar')
self.assertEqual(cf_secondary.root_symbol, 'FO')
self.assertEqual(cf_secondary.offset, 1)
self.assertEqual(cf_secondary.roll_style, 'calendar')
retrieved = self.asset_finder.retrieve_asset(
cf_secondary.sid)
self.assertEqual(retrieved, cf_secondary)
self.assertNotEqual(cf_primary, cf_secondary)
def test_current_contract(self):
cf_primary = self.asset_finder.create_continuous_future(
'FO', 0, 'calendar')
bar_data = self.create_bardata(
lambda: pd.Timestamp('2016-01-26', tz='UTC'))
contract = bar_data.current(cf_primary, 'contract')
self.assertEqual(contract.symbol, 'FOF16')
bar_data = self.create_bardata(
lambda: pd.Timestamp('2016-01-27', tz='UTC'))
contract = bar_data.current(cf_primary, 'contract')
self.assertEqual(contract.symbol, 'FOG16',
'Auto close at beginning of session so FOG16 is now '
'the current contract.')
bar_data = self.create_bardata(
lambda: pd.Timestamp('2016-01-27', tz='UTC'))
contract = bar_data.current(cf_primary, 'contract')
self.assertEqual(contract.symbol, 'FOG16')
def test_current_contract_volume_roll(self):
cf_primary = self.asset_finder.create_continuous_future(
'FO', 0, 'volume')
bar_data = self.create_bardata(
lambda: pd.Timestamp('2016-01-26', tz='UTC'))
contract = bar_data.current(cf_primary, 'contract')
self.assertEqual(contract.symbol, 'FOG16')
bar_data = self.create_bardata(
lambda: pd.Timestamp('2016-01-26', tz='UTC'))
contract = bar_data.current(cf_primary, 'contract')
self.assertEqual(contract.symbol, 'FOG16',
'Auto close at beginning of session. FOG16 remains '
'the current contract.')
bar_data = self.create_bardata(
lambda: pd.Timestamp('2016-02-26', tz='UTC'))
contract = bar_data.current(cf_primary, 'contract')
self.assertEqual(contract.symbol, 'FOH16',
'Volume switch to FOH16, should have triggered roll.')
def test_current_contract_in_algo(self):
code = dedent("""
from zipline.api import (
record,
continuous_future,
schedule_function,
get_datetime,
)
def initialize(algo):
algo.primary_cl = continuous_future('FO', 0, 'calendar')
algo.secondary_cl = continuous_future('FO', 1, 'calendar')
schedule_function(record_current_contract)
def record_current_contract(algo, data):
record(datetime=get_datetime())
record(primary=data.current(algo.primary_cl, 'contract'))
record(secondary=data.current(algo.secondary_cl, 'contract'))
""")
algo = TradingAlgorithm(script=code,
sim_params=self.sim_params,
trading_calendar=self.trading_calendar,
env=self.env)
results = algo.run(self.data_portal)
result = results.iloc[0]
self.assertEqual(result.primary.symbol,
'FOF16',
'Primary should be FOF16 on first session.')
self.assertEqual(result.secondary.symbol,
'FOG16',
'Secondary should be FOG16 on first session.')
result = results.iloc[1]
# Second day, primary should switch to FOG
self.assertEqual(result.primary.symbol,
'FOG16',
'Primary should be FOG16 on second session, auto '
'close is at beginning of the session.')
self.assertEqual(result.secondary.symbol,
'FOH16',
'Secondary should be FOH16 on second session, auto '
'close is at beginning of the session.')
result = results.iloc[2]
# Second day, primary should switch to FOG
self.assertEqual(result.primary.symbol,
'FOG16',
'Primary should remain as FOG16 on third session.')
self.assertEqual(result.secondary.symbol,
'FOH16',
'Secondary should remain as FOH16 on third session.')
def test_current_chain_in_algo(self):
code = dedent("""
from zipline.api import (
record,
continuous_future,
schedule_function,
get_datetime,
)
def initialize(algo):
algo.primary_cl = continuous_future('FO', 0, 'calendar')
algo.secondary_cl = continuous_future('FO', 1, 'calendar')
schedule_function(record_current_contract)
def record_current_contract(algo, data):
record(datetime=get_datetime())
primary_chain = data.current_chain(algo.primary_cl)
secondary_chain = data.current_chain(algo.secondary_cl)
record(primary_len=len(primary_chain))
record(primary_first=primary_chain[0].symbol)
record(primary_last=primary_chain[-1].symbol)
record(secondary_len=len(secondary_chain))
record(secondary_first=secondary_chain[0].symbol)
record(secondary_last=secondary_chain[-1].symbol)
""")
algo = TradingAlgorithm(script=code,
sim_params=self.sim_params,
trading_calendar=self.trading_calendar,
env=self.env)
results = algo.run(self.data_portal)
result = results.iloc[0]
self.assertEqual(result.primary_len,
5,
'There should be only 5 contracts in the chain for '
'the primary, there are 6 contracts defined in the '
'fixture, but one has a start after the simulation '
'date.')
self.assertEqual(result.secondary_len,
4,
'There should be only 4 contracts in the chain for '
'the primary, there are 6 contracts defined in the '
'fixture, but one has a start after the simulation '
'date. And the first is not included because it is '
'the primary on that date.')
self.assertEqual(result.primary_first,
'FOF16',
'Front of primary chain should be FOF16 on first '
'session.')
self.assertEqual(result.secondary_first,
'FOG16',
'Front of secondary chain should be FOG16 on first '
'session.')
self.assertEqual(result.primary_last,
'FOK16',
'End of primary chain should be FOK16 on first '
'session.')
self.assertEqual(result.secondary_last,
'FOK16',
'End of secondary chain should be FOK16 on first '
'session.')
# Second day, primary should switch to FOG
result = results.iloc[1]
self.assertEqual(result.primary_len,
4,
'There should be only 4 contracts in the chain for '
'the primary, there are 6 contracts defined in the '
'fixture, but one has a start after the simulation '
'date. The first is not included because of roll.')
self.assertEqual(result.secondary_len,
3,
'There should be only 3 contracts in the chain for '
'the primary, there are 6 contracts defined in the '
'fixture, but one has a start after the simulation '
'date. The first is not included because of roll, '
'the second is the primary on that date.')
self.assertEqual(result.primary_first,
'FOG16',
'Front of primary chain should be FOG16 on second '
'session.')
self.assertEqual(result.secondary_first,
'FOH16',
'Front of secondary chain should be FOH16 on second '
'session.')
# These values remain FOJ16 because fixture data is not exhaustive
# enough to move the end of the chain.
self.assertEqual(result.primary_last,
'FOK16',
'End of primary chain should be FOK16 on second '
'session.')
self.assertEqual(result.secondary_last,
'FOK16',
'End of secondary chain should be FOK16 on second '
'session.')
def test_history_sid_session(self):
cf = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar')
window = self.data_portal.get_history_window(
[cf],
Timestamp('2016-03-04 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1d', 'sid')
self.assertEqual(window.loc['2016-01-26', cf],
0,
"Should be FOF16 at beginning of window.")
self.assertEqual(window.loc['2016-01-27', cf],
1,
"Should be FOG16 after first roll.")
self.assertEqual(window.loc['2016-02-25', cf],
1,
"Should be FOG16 on session before roll.")
self.assertEqual(window.loc['2016-02-26', cf],
2,
"Should be FOH16 on session with roll.")
self.assertEqual(window.loc['2016-02-29', cf],
2,
"Should be FOH16 on session after roll.")
# Advance the window a month.
window = self.data_portal.get_history_window(
[cf],
Timestamp('2016-04-06 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1d', 'sid')
self.assertEqual(window.loc['2016-02-25', cf],
1,
"Should be FOG16 at beginning of window.")
self.assertEqual(window.loc['2016-02-26', cf],
2,
"Should be FOH16 on session with roll.")
self.assertEqual(window.loc['2016-02-29', cf],
2,
"Should be FOH16 on session after roll.")
self.assertEqual(window.loc['2016-03-24', cf],
3,
"Should be FOJ16 on session with roll.")
self.assertEqual(window.loc['2016-03-28', cf],
3,
"Should be FOJ16 on session after roll.")
def test_history_sid_session_secondary(self):
cf = self.data_portal.asset_finder.create_continuous_future(
'FO', 1, 'calendar')
window = self.data_portal.get_history_window(
[cf],
Timestamp('2016-03-04 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1d', 'sid')
self.assertEqual(window.loc['2016-01-26', cf],
1,
"Should be FOG16 at beginning of window.")
self.assertEqual(window.loc['2016-01-27', cf],
2,
"Should be FOH16 after first roll.")
self.assertEqual(window.loc['2016-02-25', cf],
2,
"Should be FOH16 on session before roll.")
self.assertEqual(window.loc['2016-02-26', cf],
3,
"Should be FOJ16 on session with roll.")
self.assertEqual(window.loc['2016-02-29', cf],
3,
"Should be FOJ16 on session after roll.")
# Advance the window a month.
window = self.data_portal.get_history_window(
[cf],
Timestamp('2016-04-06 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1d', 'sid')
self.assertEqual(window.loc['2016-02-25', cf],
2,
"Should be FOH16 at beginning of window.")
self.assertEqual(window.loc['2016-02-26', cf],
3,
"Should be FOJ16 on session with roll.")
self.assertEqual(window.loc['2016-02-29', cf],
3,
"Should be FOJ16 on session after roll.")
self.assertEqual(window.loc['2016-03-24', cf],
4,
"Should be FOK16 on session with roll.")
self.assertEqual(window.loc['2016-03-28', cf],
4,
"Should be FOK16 on session after roll.")
def test_history_sid_session_volume_roll(self):
cf = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'volume')
window = self.data_portal.get_history_window(
[cf],
Timestamp('2016-03-04 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1d', 'sid')
# Volume cuts out for FOF16 on 2016-01-25
self.assertEqual(window.loc['2016-01-26', cf],
1,
"Should be FOG16 at beginning of window.")
self.assertEqual(window.loc['2016-01-27', cf],
1,
"Should have remained FOG16.")
self.assertEqual(window.loc['2016-02-25', cf],
1,
"Should be FOG16 on session before roll.")
self.assertEqual(window.loc['2016-02-26', cf],
2,
"Should be FOH16 on session with roll.")
self.assertEqual(window.loc['2016-02-29', cf],
2,
"Should be FOH16 on session after roll.")
# Advance the window a month.
window = self.data_portal.get_history_window(
[cf],
Timestamp('2016-04-06 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1d', 'sid')
self.assertEqual(window.loc['2016-02-25', cf],
1,
"Should be FOG16 at beginning of window.")
self.assertEqual(window.loc['2016-02-26', cf],
2,
"Should be FOH16 on session with roll.")
self.assertEqual(window.loc['2016-02-29', cf],
2,
"Should be FOH16 on session after roll.")
self.assertEqual(window.loc['2016-03-17', cf],
2,
"Should be FOH16 on session before volume cuts out.")
self.assertEqual(window.loc['2016-03-18', cf],
3,
"Should be FOJ16 on session where the volume of "
"FOH16 cuts out.")
self.assertEqual(window.loc['2016-03-24', cf],
3,
"Should have remained FOJ16.")
self.assertEqual(window.loc['2016-03-28', cf],
3,
"Should have remained FOJ16.")
def test_history_sid_minute(self):
cf = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar')
window = self.data_portal.get_history_window(
[cf.sid],
Timestamp('2016-01-26 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1m', 'sid')
self.assertEqual(window.loc['2016-01-26 22:32', cf],
0,
"Should be FOF16 at beginning of window. A minute "
"which is in the 01-26 session, before the roll.")
self.assertEqual(window.loc['2016-01-26 23:00', cf],
0,
"Should be FOF16 on on minute before roll minute.")
self.assertEqual(window.loc['2016-01-26 23:01', cf],
1,
"Should be FOG16 on minute after roll.")
# Advance the window a day.
window = self.data_portal.get_history_window(
[cf],
Timestamp('2016-01-27 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1m', 'sid')
self.assertEqual(window.loc['2016-01-27 22:32', cf],
1,
"Should be FOG16 at beginning of window.")
self.assertEqual(window.loc['2016-01-27 23:01', cf],
1,
"Should remain FOG16 on next session.")
def test_history_close_session(self):
cf = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar')
window = self.data_portal.get_history_window(
[cf.sid], Timestamp('2016-03-06', tz='UTC'), 30, '1d', 'close')
assert_almost_equal(
window.loc['2016-01-26', cf],
105011.440,
err_msg="At beginning of window, should be FOG16's first value.")
assert_almost_equal(
window.loc['2016-02-26', cf],
125241.440,
err_msg="On session with roll, should be FOH16's 24th value.")
assert_almost_equal(
window.loc['2016-02-29', cf],
125251.440,
err_msg="After roll, Should be FOH16's 25th value.")
# Advance the window a month.
window = self.data_portal.get_history_window(
[cf.sid], Timestamp('2016-04-06', tz='UTC'), 30, '1d', 'close')
assert_almost_equal(
window.loc['2016-02-24', cf],
115221.440,
err_msg="At beginning of window, should be FOG16's 22nd value.")
assert_almost_equal(
window.loc['2016-02-26', cf],
125241.440,
err_msg="On session with roll, should be FOH16's 24th value.")
assert_almost_equal(
window.loc['2016-02-29', cf],
125251.440,
err_msg="On session after roll, should be FOH16's 25th value.")
assert_almost_equal(
window.loc['2016-03-24', cf],
135431.440,
err_msg="On session with roll, should be FOJ16's 43rd value.")
assert_almost_equal(
window.loc['2016-03-28', cf],
135441.440,
err_msg="On session after roll, Should be FOJ16's 44th value.")
def test_history_close_session_adjusted(self):
cf = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar')
cf_mul = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar').adj('mul')
cf_add = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar').adj('add')
window = self.data_portal.get_history_window(
[cf, cf_mul, cf_add],
Timestamp('2016-03-06', tz='UTC'), 30, '1d', 'close')
# Unadjusted value is: 115011.44
# Adjustment is based on hop from 115231.44 to 125231.44
# a ratio of ~0.920
assert_almost_equal(
window.loc['2016-01-26', cf_mul],
124992.348,
err_msg="At beginning of window, should be FOG16's first value, "
"adjusted.")
# Difference of 7008.561
assert_almost_equal(
window.loc['2016-01-26', cf_add],
125011.44,
err_msg="At beginning of window, should be FOG16's first value, "
"adjusted.")
assert_almost_equal(
window.loc['2016-02-26', cf_mul],
125241.440,
err_msg="On session with roll, should be FOH16's 24th value, "
"unadjusted.")
assert_almost_equal(
window.loc['2016-02-26', cf_add],
125241.440,
err_msg="On session with roll, should be FOH16's 24th value, "
"unadjusted.")
assert_almost_equal(
window.loc['2016-02-29', cf_mul],
125251.440,
err_msg="After roll, Should be FOH16's 25th value, unadjusted.")
assert_almost_equal(
window.loc['2016-02-29', cf_add],
125251.440,
err_msg="After roll, Should be FOH16's 25th value, unadjusted.")
# Advance the window a month.
window = self.data_portal.get_history_window(
[cf, cf_mul, cf_add],
Timestamp('2016-04-06', tz='UTC'), 30, '1d', 'close')
# Unadjusted value: 115221.44
# Adjustments based on hops:
# 2016-02-25 00:00:00+00:00
# front 115231.440
# back 125231.440
# ratio: ~0.920
# difference: 10000.0
# and
# 2016-03-23 00:00:00+00:00
# front 125421.440
# back 135421.440
# ratio: ~1.080
# difference: 10000.00
assert_almost_equal(
window.loc['2016-02-24', cf_mul],
135236.905,
err_msg="At beginning of window, should be FOG16's 22nd value, "
"with two adjustments.")
assert_almost_equal(
window.loc['2016-02-24', cf_add],
135251.44,
err_msg="At beginning of window, should be FOG16's 22nd value, "
"with two adjustments")
# Unadjusted: 125241.44
assert_almost_equal(
window.loc['2016-02-26', cf_mul],
135259.442,
err_msg="On session with roll, should be FOH16's 24th value, "
"with one adjustment.")
assert_almost_equal(
window.loc['2016-02-26', cf_add],
135271.44,
err_msg="On session with roll, should be FOH16's 24th value, "
"with one adjustment.")
# Unadjusted: 125251.44
assert_almost_equal(
window.loc['2016-02-29', cf_mul],
135270.241,
err_msg="On session after roll, should be FOH16's 25th value, "
"with one adjustment.")
assert_almost_equal(
window.loc['2016-02-29', cf_add],
135281.44,
err_msg="On session after roll, should be FOH16's 25th value, "
"unadjusted.")
# Unadjusted: 135431.44
assert_almost_equal(
window.loc['2016-03-24', cf_mul],
135431.44,
err_msg="On session with roll, should be FOJ16's 43rd value, "
"unadjusted.")
assert_almost_equal(
window.loc['2016-03-24', cf_add],
135431.44,
err_msg="On session with roll, should be FOJ16's 43rd value.")
# Unadjusted: 135441.44
assert_almost_equal(
window.loc['2016-03-28', cf_mul],
135441.44,
err_msg="On session after roll, Should be FOJ16's 44th value.")
assert_almost_equal(
window.loc['2016-03-28', cf_add],
135441.44,
err_msg="On session after roll, Should be FOJ16's 44th value.")
def test_history_close_minute(self):
cf = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar')
window = self.data_portal.get_history_window(
[cf.sid],
Timestamp('2016-02-25 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1m', 'close')
self.assertEqual(window.loc['2016-02-25 22:32', cf],
115231.412,
"Should be FOG16 at beginning of window. A minute "
"which is in the 02-25 session, before the roll.")
self.assertEqual(window.loc['2016-02-25 23:00', cf],
115231.440,
"Should be FOG16 on on minute before roll minute.")
self.assertEqual(window.loc['2016-02-25 23:01', cf],
125240.001,
"Should be FOH16 on minute after roll.")
# Advance the window a session.
window = self.data_portal.get_history_window(
[cf],
Timestamp('2016-02-28 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1m', 'close')
self.assertEqual(window.loc['2016-02-26 22:32', cf],
125241.412,
"Should be FOH16 at beginning of window.")
self.assertEqual(window.loc['2016-02-28 23:01', cf],
125250.001,
"Should remain FOH16 on next session.")
def test_history_close_minute_adjusted(self):
cf = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar')
cf_mul = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar').adj('mul')
cf_add = self.data_portal.asset_finder.create_continuous_future(
'FO', 0, 'calendar').adj('add')
window = self.data_portal.get_history_window(
[cf, cf_mul, cf_add],
Timestamp('2016-02-25 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1m', 'close')
# Unadjusted: 115231.412
# Adjustment based on roll:
# 2016-02-25 23:00:00+00:00
# front: 115231.440
# back: 125231.440
# Ratio: ~0.920
# Difference: 10000.00
self.assertEqual(window.loc['2016-02-25 22:32', cf_mul],
125231.41,
"Should be FOG16 at beginning of window. A minute "
"which is in the 02-25 session, before the roll.")
self.assertEqual(window.loc['2016-02-25 22:32', cf_add],
125231.412,
"Should be FOG16 at beginning of window. A minute "
"which is in the 02-25 session, before the roll.")
# Unadjusted: 115231.44
# Should use same ratios as above.
self.assertEqual(window.loc['2016-02-25 23:00', cf_mul],
125231.44,
"Should be FOG16 on on minute before roll minute, "
"adjusted.")
self.assertEqual(window.loc['2016-02-25 23:00', cf_add],
125231.44,
"Should be FOG16 on on minute before roll minute, "
"adjusted.")
self.assertEqual(window.loc['2016-02-25 23:01', cf_mul],
125240.001,
"Should be FOH16 on minute after roll, unadjusted.")
self.assertEqual(window.loc['2016-02-25 23:01', cf_add],
125240.001,
"Should be FOH16 on minute after roll, unadjusted.")
# Advance the window a session.
window = self.data_portal.get_history_window(
[cf, cf_mul, cf_add],
Timestamp('2016-02-28 18:01', tz='US/Eastern').tz_convert('UTC'),
30, '1m', 'close')
# No adjustments in this window.
self.assertEqual(window.loc['2016-02-26 22:32', cf_mul],
125241.412,
"Should be FOH16 at beginning of window.")
self.assertEqual(window.loc['2016-02-28 23:01', cf_mul],
125250.001,
"Should remain FOH16 on next session.")
class OrderedContractsTestCase(ZiplineTestCase):
def test_contract_at_offset(self):
contract_sids = array([1, 2, 3, 4], dtype=int64)
start_dates = pd.date_range('2015-01-01', periods=4, tz="UTC")
auto_close_dates = pd.date_range('2016-04-01', periods=4, tz="UTC")
oc = OrderedContracts('FO',
contract_sids,
start_dates.astype('int64'),
auto_close_dates.astype('int64'))
self.assertEquals(1,
oc.contract_at_offset(1, 0, start_dates[-1].value),
"Offset of 0 should return provided sid")
self.assertEquals(2,
oc.contract_at_offset(1, 1, start_dates[-1].value),
"Offset of 1 should return next sid in chain.")
self.assertEquals(None,
oc.contract_at_offset(4, 1, start_dates[-1].value),
"Offset at end of chain should not crash.")
def test_active_chain(self):
contract_sids = array([1, 2, 3, 4], dtype=int64)
start_dates = pd.date_range('2015-01-01', periods=4, tz="UTC")
auto_close_dates = pd.date_range('2016-04-01', periods=4, tz="UTC")
oc = OrderedContracts('FO',
contract_sids,
start_dates.astype('int64'),
auto_close_dates.astype('int64'))
# Test sid 1 as days increment, as the sessions march forward
# a contract should be added per day, until all defined contracts
# are returned.
chain = oc.active_chain(1, pd.Timestamp('2014-12-31', tz='UTC').value)
self.assertEquals([], list(chain),
"On session before first start date, no contracts "
"in chain should be active.")
chain = oc.active_chain(1, pd.Timestamp('2015-01-01', tz='UTC').value)
self.assertEquals([1], list(chain),
"[1] should be the active chain on 01-01, since all "
"other start dates occur after 01-01.")
chain = oc.active_chain(1, pd.Timestamp('2015-01-02', tz='UTC').value)
self.assertEquals([1, 2], list(chain),
"[1, 2] should be the active contracts on 01-02.")
chain = oc.active_chain(1, pd.Timestamp('2015-01-03', tz='UTC').value)
self.assertEquals([1, 2, 3], list(chain),
"[1, 2, 3] should be the active contracts on 01-03.")
chain = oc.active_chain(1, pd.Timestamp('2015-01-04', tz='UTC').value)
self.assertEquals(4, len(chain),
"[1, 2, 3, 4] should be the active contracts on "
"01-04, this is all defined contracts in the test "
"case.")
chain = oc.active_chain(1, pd.Timestamp('2015-01-05', tz='UTC').value)
self.assertEquals(4, len(chain),
"[1, 2, 3, 4] should be the active contracts on "
"01-05. This tests the case where all start dates "
"are before the query date.")
# Test querying each sid at a time when all should be alive.
chain = oc.active_chain(2, pd.Timestamp('2015-01-05', tz='UTC').value)
self.assertEquals([2, 3, 4], list(chain))
chain = oc.active_chain(3, pd.Timestamp('2015-01-05', tz='UTC').value)
self.assertEquals([3, 4], list(chain))
chain = oc.active_chain(4, pd.Timestamp('2015-01-05', tz='UTC').value)
self.assertEquals([4], list(chain))
# Test defined contract to check edge conditions.
chain = oc.active_chain(4, pd.Timestamp('2015-01-03', tz='UTC').value)
self.assertEquals([], list(chain),
"No contracts should be active, since 01-03 is "
"before 4's start date.")
chain = oc.active_chain(4, pd.Timestamp('2015-01-04', tz='UTC').value)
self.assertEquals([4], list(chain),
"[4] should be active beginning at its start date.")
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