@Test
  public void testFindAlbumById() throws Exception {
    Album album = new Album(TEST_ALBUM_NAME, TEST_ALBUM_DESCRIPTION);
    album.modifyUser(user);
    Album createdAlbum = repository.create(album);

    // Execute
    Album foundAlbum = repository.findById(createdAlbum.getAlbumId());

    // Verify
    em.flush();
    em.clear();
    Album actualAlbum = em.find(Album.class, foundAlbum.getAlbumId());
    assertEquals(foundAlbum, actualAlbum);
  }