def test_ema2(self):
     ret = ts.run(ts.EMA(ts.Foo(foo4), alpha=1 / 10, adjust=True))
     comp = pd.Series([_ for _ in range(10)]).ewm(alpha=1 / 10,
                                                  adjust=True).mean()
     for i, x in enumerate(ret):
         assert (x - comp[i]) < 0.001
 def test_ema(self):
     ret = ts.run(ts.EMA(ts.Foo(foo4)))
     comp = pd.Series([_ for _ in range(10)]).ewm(span=10,
                                                  adjust=False).mean()
     for i, x in enumerate(ret):
         assert (x - comp[i]) < 0.001