books.add(new BookImpl("Book #1", author1));
books.add(new BookImpl("Book #2", author1));
books.add(new BookImpl("Book #3", author2));
books.add(new BookImpl("Book #4", author2));
Library library = new LibraryImpl("Library #1", books);
MapperFactory factory = MappingUtil.getMapperFactory();
MapperFacade mapper = factory.getMapperFacade();
LibraryDTO mapped = mapper.map(library, LibraryDTO.class);
assertValidMapping(library,mapped);
Library libraryMapBack = mapper.map(mapped, LibraryImpl.class);
assertValidMapping(libraryMapBack,mapped);
}