def test_calculate_shortino_ratio_no_negative_return(self):
     daily_returns = np.array([1, 11, 10, 1, 2])
     result = TraderAlpha.calculate_shortino_ratio(daily_returns)
     self.assertEqual(0, result)
 def test_calculate_shortino_ratio(self):
     daily_returns = np.array([1, -11, 10, -1, 2])
     result = TraderAlpha.calculate_shortino_ratio(daily_returns)
     self.assertTrue(result > 0)