### Question:
Car { public String getId() { return id; }  String getMake(); @XmlElement void setMake(String make); String getManufacturer(); @XmlElement void setManufacturer(String manufacturer); String getId(); @XmlAttribute void setId(String id); String toString();  }### Answer:
@Test public void testGetId() { car.setId("ABC-123"); assertEquals("ABC-123", car.getId()); }