* @param fieldName
* 测试对象的字段名称
* @return
*/
public static <T> T proxy(final Class testClazz, final String fieldName) {
FieldProxy handler = new FieldProxy(testClazz, fieldName);
Field field = FieldHelper.getField(testClazz, fieldName);
Class type = field.getType();
return (T) imposteriser.imposterise(handler, type);
}