@Test
public void byAuthor() {
List<Book> books = service.findBooksByAuthor("Mann");
assertEquals(1, books.size());
Book book = books.get(0);
assertEquals("Buddenbrooks", book.getTitle());
}
@Test
public void numAuthors() {
assertEquals(2, service.getNumAuthors());
service.createAuthor("Theodor", "Storm");
assertEquals(3, service.getNumAuthors());
}
@Before
public void setUp() {
service.fillLibrary();
}