def METHOD_NAME(self):
    with open('test.ccd', 'w') as f:
        f.write('# number of elements\n')
        f.write('3\n')
        f.write('1e-003 3e-003 -4e-003 0e+000 0e+000 -4e-006\n')
        f.write('3e-003 1e-003  1e-003 1e+000 0e+000 0e-000\n')
        f.write('4e-003 2e-003 -5e-003 0e+000 1e+000 0e-000\n')
    position, dipole = coil.read_ccd('test.ccd')
    assert np.allclose(position, np.array([[1e-3, 3e-3, -4e-3],
                                           [3e-3, 1e-3, 1e-3],
                                           [4e-3, 2e-3, -5e-3]]))
    assert np.allclose(dipole, np.array([[0, 0, -4e-6],
                                         [1, 0, 0],
                                         [0, 1, 0]], dtype=float))
    os.remove('test.ccd')