@Test
public void testRobot() {

	Machine sorter = new Machine("Sorter", "left");
	sorter.put("chips");
	Machine oven = new Machine("Oven", "middle");
	Robot robot = new Robot();
	assertEquals("chips", sorter.bin());
	assertNull(oven.bin());
	assertNull(robot.location());
	assertNull(robot.bin());
	robot.moveTo(sorter);
	robot.pick();
	robot.moveTo(oven);
	robot.release();
	assertNull(robot.bin());
	assertEquals(oven, robot.location());
	assertNull(sorter.bin());
	assertEquals("chips", oven.bin());
}