public void testEchoInOutBookArray() throws Exception
{
Book book1 = new Book("author1", "title1", 12345);
Book book2 = new Book("author2", "title2", 67890);
ArrayOfBookHolder holder = new ArrayOfBookHolder(new Book[] { book1, book2 });
port.echoInOutBookArray(holder);
assertEquals(new Book[] { book1, book2 }, holder.value);
}