def init_instance_fixtures(self):
super(CalendarAliasTestCase, self).init_instance_fixtures()
self.dispatcher = TradingCalendarDispatcher(
# Make copies here so that tests that mutate the dispatcher dicts
# are isolated from one another.
**{k: v.copy()
for k, v in self.dispatcher_kwargs.items()})
def init_instance_fixtures(self):
super(CalendarAliasTestCase, self).init_instance_fixtures()
self.dispatcher = TradingCalendarDispatcher(
# Make copies here so that tests that mutate the dispatcher dicts
# are isolated from one another.
**{k: v.copy() for k, v in self.dispatcher_kwargs.items()}
)
class CalendarAliasTestCase(ZiplineTestCase):
@classmethod
def init_class_fixtures(cls):
super(CalendarAliasTestCase, cls).init_class_fixtures()
# Make a calendar once so that we don't spend time in every test
# instantiating calendars.
cls.dispatcher_kwargs = dict(
calendars={'ICE': ICEExchangeCalendar()},
calendar_factories={},
aliases={
'ICE_ALIAS': 'ICE',
'ICE_ALIAS_ALIAS': 'ICE_ALIAS',
},
)
def init_instance_fixtures(self):
super(CalendarAliasTestCase, self).init_instance_fixtures()
self.dispatcher = TradingCalendarDispatcher(
# Make copies here so that tests that mutate the dispatcher dicts
# are isolated from one another.
**{k: v.copy()
for k, v in self.dispatcher_kwargs.items()})
def test_follow_alias_chain(self):
self.assertIs(
self.dispatcher.get_calendar('ICE_ALIAS'),
self.dispatcher.get_calendar('ICE'),
)
self.assertIs(
self.dispatcher.get_calendar('ICE_ALIAS_ALIAS'),
self.dispatcher.get_calendar('ICE'),
)
def test_add_new_aliases(self):
with self.assertRaises(InvalidCalendarName):
self.dispatcher.get_calendar('NOT_ICE')
self.dispatcher.register_calendar_alias('NOT_ICE', 'ICE')
self.assertIs(
self.dispatcher.get_calendar('NOT_ICE'),
self.dispatcher.get_calendar('ICE'),
)
self.dispatcher.register_calendar_alias('ICE_ALIAS_ALIAS_ALIAS',
'ICE_ALIAS_ALIAS')
self.assertIs(
self.dispatcher.get_calendar('ICE_ALIAS_ALIAS_ALIAS'),
self.dispatcher.get_calendar('ICE'),
)
def test_remove_aliases(self):
self.dispatcher.deregister_calendar('ICE_ALIAS_ALIAS')
with self.assertRaises(InvalidCalendarName):
self.dispatcher.get_calendar('ICE_ALIAS_ALIAS')
def test_reject_alias_that_already_exists(self):
with self.assertRaises(CalendarNameCollision):
self.dispatcher.register_calendar_alias('ICE', 'NOT_ICE')
with self.assertRaises(CalendarNameCollision):
self.dispatcher.register_calendar_alias('ICE_ALIAS', 'NOT_ICE')
def test_allow_alias_override_with_force(self):
self.dispatcher.register_calendar_alias('ICE', 'NOT_ICE', force=True)
with self.assertRaises(InvalidCalendarName):
self.dispatcher.get_calendar('ICE')
def test_reject_cyclic_aliases(self):
add_alias = self.dispatcher.register_calendar_alias
add_alias('A', 'B')
add_alias('B', 'C')
with self.assertRaises(CyclicCalendarAlias) as e:
add_alias('C', 'A')
expected = "Cycle in calendar aliases: ['C' -> 'A' -> 'B' -> 'C']"
self.assertEqual(str(e.exception), expected)
class CalendarAliasTestCase(ZiplineTestCase):
@classmethod
def init_class_fixtures(cls):
super(CalendarAliasTestCase, cls).init_class_fixtures()
# Make a calendar once so that we don't spend time in every test
# instantiating calendars.
cls.dispatcher_kwargs = dict(
calendars={'ICE': ICEExchangeCalendar()},
calendar_factories={},
aliases={
'ICE_ALIAS': 'ICE',
'ICE_ALIAS_ALIAS': 'ICE_ALIAS',
},
)
def init_instance_fixtures(self):
super(CalendarAliasTestCase, self).init_instance_fixtures()
self.dispatcher = TradingCalendarDispatcher(
# Make copies here so that tests that mutate the dispatcher dicts
# are isolated from one another.
**{k: v.copy() for k, v in self.dispatcher_kwargs.items()}
)
def test_follow_alias_chain(self):
self.assertIs(
self.dispatcher.get_calendar('ICE_ALIAS'),
self.dispatcher.get_calendar('ICE'),
)
self.assertIs(
self.dispatcher.get_calendar('ICE_ALIAS_ALIAS'),
self.dispatcher.get_calendar('ICE'),
)
def test_add_new_aliases(self):
with self.assertRaises(InvalidCalendarName):
self.dispatcher.get_calendar('NOT_ICE')
self.dispatcher.register_calendar_alias('NOT_ICE', 'ICE')
self.assertIs(
self.dispatcher.get_calendar('NOT_ICE'),
self.dispatcher.get_calendar('ICE'),
)
self.dispatcher.register_calendar_alias(
'ICE_ALIAS_ALIAS_ALIAS',
'ICE_ALIAS_ALIAS'
)
self.assertIs(
self.dispatcher.get_calendar('ICE_ALIAS_ALIAS_ALIAS'),
self.dispatcher.get_calendar('ICE'),
)
def test_remove_aliases(self):
self.dispatcher.deregister_calendar('ICE_ALIAS_ALIAS')
with self.assertRaises(InvalidCalendarName):
self.dispatcher.get_calendar('ICE_ALIAS_ALIAS')
def test_reject_alias_that_already_exists(self):
with self.assertRaises(CalendarNameCollision):
self.dispatcher.register_calendar_alias('ICE', 'NOT_ICE')
with self.assertRaises(CalendarNameCollision):
self.dispatcher.register_calendar_alias('ICE_ALIAS', 'NOT_ICE')
def test_allow_alias_override_with_force(self):
self.dispatcher.register_calendar_alias('ICE', 'NOT_ICE', force=True)
with self.assertRaises(InvalidCalendarName):
self.dispatcher.get_calendar('ICE')
def test_reject_cyclic_aliases(self):
add_alias = self.dispatcher.register_calendar_alias
add_alias('A', 'B')
add_alias('B', 'C')
with self.assertRaises(CyclicCalendarAlias) as e:
add_alias('C', 'A')
expected = "Cycle in calendar aliases: ['C' -> 'A' -> 'B' -> 'C']"
self.assertEqual(str(e.exception), expected)
