def test_save_dip(self):
        p = Project()
        l = Layer("test", [1,1,1])
        p.stackup.add_layer(l)
        d = DIPComponent(Point2(64, 54), 33.5, SIDE.Top, p, 12, 512, 640, 1111)
        d.refdes = "UFOO"

        p.artwork.merge_component(d)

        p_new = self.__saverestore(p)

        self.assertEqual(len(p_new.artwork.components), 1)
        c = next(iter(p_new.artwork.components))
        
        self.assertIsInstance(c, DIPComponent)
        self.assertEqual(d.body_length(), c.body_length())
        self.assertEqual(d.body_width(), c.body_width())
        self.assertEqual(d.pin_count, c.pin_count)
        self.assertEqual(d.pin_space, c.pin_space)
        self.assertEqual(d.pin_width, c.pin_width)
        self.assertEqual(d.pad_size, c.pad_size)
        self.assertEqual(d.theta, c.theta)
        self.assertEqual(d.refdes, c.refdes)