@Test
  public void testFindByTitle() throws Exception {
    IPictogram pictogram = new Pictogram();
    pictogram.setTitle("testFindByTitle");
    pictogram.setFileIdentifier("test.txt");

    repository.save(pictogram);

    IPictogram testPictogram = repository.findByTitle(pictogram.getTitle());

    assertEquals(pictogram.getId(), testPictogram.getId());

    // return null for non-existing entities
    testPictogram = repository.findByTitle("NON-EXIST");

    assertEquals(null, testPictogram);
  }