def METHOD_NAME(self):
    """
    Test integration of local density of states on real space grid.
    The integral of the LDOS over real space grid should yield the DOS.
    """
    ldos_calculator = LDOS(test_parameters)
    ldos_calculator.read_additional_calculation_data(path_to_out, "espresso-out")
    dos_calculator = DOS(test_parameters)
    dos_calculator.read_additional_calculation_data(path_to_out, "espresso-out")
    # Read the input data.
    ldos_dft = np.load(path_to_ldos_npy)
    dos_dft = np.load(path_to_dos_npy)
    # Calculate the quantities we want to compare.
    dos_mala = ldos_calculator.get_density_of_states(ldos_dft)
    dos_mala_sum = dos_mala.sum()
    dos_dft_sum = dos_dft.sum()
    rel_error = np.abs(dos_mala_sum-dos_dft_sum) / dos_dft_sum
    printout("Relative error for sum of DOS: ", rel_error,
             min_verbosity=0)
    # Check against the constraints we put upon ourselves.
    assert np.isclose(rel_error, 0, atol=accuracy_ldos)