### Question:
ServiceRequest extends JsonWrapper { public void setId(String id) { this.id = id; } ServiceRequest();  ServiceRequest(String jsonString);  ServiceRequest(String jsonString, String serviceRequestType);  ServiceRequest(JsonObject jsonObject);  ServiceRequest(JsonObject jsonObject, String serviceRequestType); String getServiceRequestType(); void setServiceRequestType(String serviceRequestType); void setId(String id); String getId(); @Override ServiceRequest clone(); static final String EMPTY_MESSAGE; }### Answer:
@Test public void testSetId() { empty.setId("test"); assertEquals("test", empty.getId()); }