### Question:
PropertyAccessorHelper { public static Object getId(Object entity, EntityMetadata metadata) { if (entity instanceof EnhanceEntity) { return ((EnhanceEntity) entity).getEntityId(); } return getObject(entity, (Field) metadata.getIdAttribute().getJavaMember()); }  static void set(Object target, Field field, byte[] bytes); static void set(Object target, Field field, String fieldVal); static void set(Object target, Field field, Object value); static Object getObject(Object from, Field field); static Object getObjectCopy(Object from, Field field); static String getString(Object from, Field field); static byte[] get(Object from, Field field); static Object getId(Object entity, EntityMetadata metadata); static void setId(Object entity, EntityMetadata metadata, Object rowKey); static void setId(Object entity, EntityMetadata metadata, byte[] rowKey); @SuppressWarnings("null") // TODO: Too much code, improve this, possibly by breaking it static final Object getObject(Object obj, String fieldName); static Class<?> getGenericClass(Field collectionField); static List<Class<?>> getGenericClasses(Field collectionField); static Field[] getDeclaredFields(Field relationalField); static final boolean isCollection(Class<?> clazz); static final Object getObject(Class<?> clazz); static final byte[] toBytes(Object o, Field f); static final byte[] toBytes(Object o, Class c); static Object fromSourceToTargetClass(Class<?> targetClass, Class<?> sourceClass, Object o); static Object fromDate(Class<?> targetClass, Class<?> sourceClass, Object o); static byte[] getBytes(Object o); static String getString(Object o); static Object getObject(Class clazz, byte[] b); static final Collection getCollectionInstance(Field collectionField);  }### Answer:
@Test public void testGetId() { }