eBook.setPrice(22.5);
List<String> notes= Arrays.asList(new String[]{"Great book","Not too bad"});
eBook.getNotes().addAll(notes);
eBookStore.saveBook(eBook);
EBook response=eBookStore.takeBook("Animal Farm");
assertEquals(eBook.getNumPages(),response.getNumPages());
assertEquals(eBook.getPrice(),response.getPrice(),0);
assertEquals(eBook.getTitle(),response.getTitle());
assertEquals(notes,response.getNotes());