def METHOD_NAME(self):
    "horizontal polarization should decay in (cos2θ)**2 in horizontal plane and no correction in vertical one"
    self.assertTrue(abs(self.ai.polarization(factor=1)[:, 6] - numpy.ones(13)).max() == 0, "No correction in the vertical plane")
    self.assertTrue(abs(self.ai.polarization(factor=1)[6] - numpy.cos(self.rotX) ** 2).max() < self.epsilon, "cos(2th)^2 like in the horizontal plane")