### Question:
CategoryServiceImpl implements CategoryService { @Override public List<CategoryDto> search(String keyword) { String categoryName = QueryEscapeUtils.toContainingCondition(keyword); List<String> categoryStrings = categoryRepository.findConcatenatedCategoryLikeCategoryName(categoryName); return categoryStrings.stream() .map(string -> new CategoryDto(Categories.fromCategory(string))) .collect(Collectors.toList()); }  @Override List<CategoryDto> findAll(); @Override List<CategoryDto> search(String keyword);  }### Answer:
@Test public void testSearch() throws Exception { System.out.println(categoryService.search("java")); }