def setUpClass(cls):
cls.first_asset_start = Timestamp("2015-04-01", tz="UTC")
cls.env = TradingEnvironment()
cls.trading_day = day = cls.env.trading_day
cls.calendar = date_range("2015", "2015-08", tz="UTC", freq=day)
cls.asset_info = make_rotating_equity_info(
num_assets=6, first_start=cls.first_asset_start, frequency=day, periods_between_starts=4, asset_lifetime=8
)
cls.last_asset_end = cls.asset_info["end_date"].max()
cls.all_assets = cls.asset_info.index
cls.env.write_data(equities_df=cls.asset_info)
cls.finder = cls.env.asset_finder
cls.temp_dir = TempDirectory()
cls.temp_dir.create()
try:
cls.writer = SyntheticDailyBarWriter(
asset_info=cls.asset_info[["start_date", "end_date"]], calendar=cls.calendar
)
table = cls.writer.write(cls.temp_dir.getpath("testdata.bcolz"), cls.calendar, cls.all_assets)
cls.pipeline_loader = USEquityPricingLoader(BcolzDailyBarReader(table), NullAdjustmentReader())
except:
cls.temp_dir.cleanup()
raise
def test_compute_lifetimes(self):
num_assets = 4
trading_day = self.env.trading_day
first_start = pd.Timestamp('2015-04-01', tz='UTC')
frame = make_rotating_equity_info(
num_assets=num_assets,
first_start=first_start,
frequency=self.env.trading_day,
periods_between_starts=3,
asset_lifetime=5
)
self.env.write_data(equities_df=frame)
finder = self.env.asset_finder
all_dates = pd.date_range(
start=first_start,
end=frame.end_date.max(),
freq=trading_day,
)
for dates in all_subindices(all_dates):
expected_with_start_raw = full(
shape=(len(dates), num_assets),
fill_value=False,
dtype=bool,
)
expected_no_start_raw = full(
shape=(len(dates), num_assets),
fill_value=False,
dtype=bool,
)
for i, date in enumerate(dates):
it = frame[['start_date', 'end_date']].itertuples()
for j, start, end in it:
# This way of doing the checks is redundant, but very
# clear.
if start <= date <= end:
expected_with_start_raw[i, j] = True
if start < date:
expected_no_start_raw[i, j] = True
expected_with_start = pd.DataFrame(
data=expected_with_start_raw,
index=dates,
columns=frame.index.values,
)
result = finder.lifetimes(dates, include_start_date=True)
assert_frame_equal(result, expected_with_start)
expected_no_start = pd.DataFrame(
data=expected_no_start_raw,
index=dates,
columns=frame.index.values,
)
result = finder.lifetimes(dates, include_start_date=False)
assert_frame_equal(result, expected_no_start)
def test_compute_lifetimes(self):
num_assets = 4
trading_day = self.env.trading_day
first_start = pd.Timestamp('2015-04-01', tz='UTC')
frame = make_rotating_equity_info(
num_assets=num_assets,
first_start=first_start,
frequency=self.env.trading_day,
periods_between_starts=3,
asset_lifetime=5
)
self.env.write_data(equities_df=frame)
finder = self.env.asset_finder
all_dates = pd.date_range(
start=first_start,
end=frame.end_date.max(),
freq=trading_day,
)
for dates in all_subindices(all_dates):
expected_with_start_raw = full(
shape=(len(dates), num_assets),
fill_value=False,
dtype=bool,
)
expected_no_start_raw = full(
shape=(len(dates), num_assets),
fill_value=False,
dtype=bool,
)
for i, date in enumerate(dates):
it = frame[['start_date', 'end_date']].itertuples()
for j, start, end in it:
# This way of doing the checks is redundant, but very
# clear.
if start <= date <= end:
expected_with_start_raw[i, j] = True
if start < date:
expected_no_start_raw[i, j] = True
expected_with_start = pd.DataFrame(
data=expected_with_start_raw,
index=dates,
columns=frame.index.values,
)
result = finder.lifetimes(dates, include_start_date=True)
assert_frame_equal(result, expected_with_start)
expected_no_start = pd.DataFrame(
data=expected_no_start_raw,
index=dates,
columns=frame.index.values,
)
result = finder.lifetimes(dates, include_start_date=False)
assert_frame_equal(result, expected_no_start)
def setUpClass(cls):
cls.first_asset_start = Timestamp('2015-04-01', tz='UTC')
cls.env = TradingEnvironment()
cls.trading_day = day = cls.env.trading_day
cls.calendar = date_range('2015', '2015-08', tz='UTC', freq=day)
cls.asset_info = make_rotating_equity_info(
num_assets=6,
first_start=cls.first_asset_start,
frequency=day,
periods_between_starts=4,
asset_lifetime=8,
)
cls.last_asset_end = cls.asset_info['end_date'].max()
cls.all_asset_ids = cls.asset_info.index
cls.env.write_data(equities_df=cls.asset_info)
cls.finder = cls.env.asset_finder
cls.temp_dir = TempDirectory()
cls.temp_dir.create()
try:
cls.writer = SyntheticDailyBarWriter(
asset_info=cls.asset_info[['start_date', 'end_date']],
calendar=cls.calendar,
)
table = cls.writer.write(
cls.temp_dir.getpath('testdata.bcolz'),
cls.calendar,
cls.all_asset_ids,
)
cls.pipeline_loader = USEquityPricingLoader(
BcolzDailyBarReader(table),
NullAdjustmentReader(),
)
except:
cls.temp_dir.cleanup()
raise
