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_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")
contracts = deque(self.asset_finder.retrieve_all(contract_sids))
oc = OrderedContracts('FO', contracts)
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_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.")
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.")