def test_norm_output(self):
     normalizer = Normalizer(out_min = -20, out_max = 70,
                             norm_min = -3, norm_max = 3)
     
     self.assertAlmostEqual(-20, normalizer.norm_output(0))
     self.assertAlmostEqual(25, normalizer.norm_output(.5))
     self.assertAlmostEqual(2.5, normalizer.norm_output(.25))
     self.assertAlmostEqual(61, normalizer.norm_output(.9))
    def test_default_normalizer(self):
        normalizer = Normalizer()

        self.assertAlmostEqual(.27, normalizer.norm_input(.27))
        self.assertAlmostEqual(.27, normalizer.denorm_input(
            normalizer.norm_input(.27)))

        self.assertAlmostEqual(.27, normalizer.norm_output(.27))
        self.assertAlmostEqual(.27, normalizer.denorm_output(.27))