I'm writing updates as part of CRUD testing and when I test my code, I get an error saying no entities are found. I have no idea why, because my partner did the exact same code and he worked perfectly. Neither of us is able to figure out what's going on. I'm getting an error on the getSingleResult() method.
@Test
public void updateBookTest() {
Book book = em.createQuery("select b from Book b where b.title = :title", Book.class).setParameter("title", "createABook").getSingleResult();
tx.begin();
book.setTitle("updatedThisBook");
book.setAuthor("newAuthor");
tx.commit();
Book updatedBook = em.find(Book.class, book.getBookId());
assertEquals(book.getTitle(), updatedBook.getTitle());
assertEquals(book.getAuthor(), updatedBook.getAuthor());
System.out.println("updateBookTest:\t" + book.toString());
tx.begin();
book.setTitle("createABook");
tx.commit();
}
This is my code. Let me know if more information is needed.
