def test_aroon_basic(self, lows, highs, expected_out): aroon = Aroon(window_length=self.window_length) today = pd.Timestamp('2014', tz='utc') assets = pd.Index(np.arange(self.nassets, dtype=np.int64)) shape = (self.nassets,) out = np.recarray(shape=shape, dtype=self.dtype, buf=np.empty(shape=shape, dtype=self.dtype)) aroon.compute(today, assets, out, lows, highs) assert_equal(out, expected_out)