public Neo4JManufacturerRepositoryTest() {
    manufacturer0 = new Neo4JManufacturer();
    manufacturer0.setName("Siemens");

    manufacturer1 = new Neo4JManufacturer();
    manufacturer1.setName("GE");

    manufacturer2 = new Neo4JManufacturer();
    manufacturer2.setName("Bosh");

    manufacturer3 = new Neo4JManufacturer();
    manufacturer3.setName("Alcatel");
  }
  @Test
  public void testDeleteById() {
    Neo4JManufacturer loadedManufacturer =
        neo4JManufacturerRepository.findOne(manufacturer0.getId());
    assertThatManufacturer(loadedManufacturer).exists();

    neo4JManufacturerService.delete(manufacturer0.getId());
    //  neo4JManufacturerRepository.delete(manufacturer0.getId());
    //    neo4JManufacturerRepository.deleteManufacturer(manufacturer0.getId());

    //    loadedManufacturer = neo4JManufacturerRepository.findOne(manufacturer0.getId());
    //    loadedManufacturer = neo4JManufacturerService.findById(manufacturer0.getId());
    assertThatManufacturer(loadedManufacturer).doesNotExist();
  }