def METHOD_NAME(self):
    H = self.mesh3.h_gridded
    test_hx = np.all(
        H[:, 0] == np.r_[1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]
    )
    test_hy = np.all(
        H[:, 1] == np.r_[1.0, 1.0, 1.0, 2.0, 2.0, 2.0, 1.0, 1.0, 1.0, 2.0, 2.0, 2.0]
    )
    test_hz = np.all(
        H[:, 2] == np.r_[1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 4.0, 4.0, 4.0, 4.0, 4.0, 4.0]
    )
    self.assertTrue(test_hx and test_hy and test_hz)