### Question:
TagServiceImpl implements TagService { @Override public Page<Tag> getAllTag() { return tagDao.findAll((PageRequest) null); }  @Override Page<Tag> getAllTag(); @Override Page<Tag> getTag(int skip, int count, Order... order); @Override Page<Tag> getTag(Pageable page); @Override @Transactional(readOnly = false) Tag save(Tag tag); @Override Tag read(Long tagId); @Override @Transactional(readOnly = false) void delete(Long tagId); @Override long getNrOfTags(); @Override List<Post> getPostingSelectOptions();  }### Answer:
@Test public void testGetAllTag() { tagService.getAllTag(); verify(tagDao, times(1)).findAll((Pageable) null); }