@Test
 public void searchRestrictionTest() {
   final UserGroupModel group = new UserGroupModel();
   group.setUid("customergroup");
   modelService.save(group);
   // create test user
   final UserModel user = new UserModel();
   user.setUid(TEST_USER);
   // assign user to customergroup
   user.setGroups(Collections.singleton((PrincipalGroupModel) group));
   modelService.save(user);
   // create test catalog
   final CatalogModel catalog = new CatalogModel();
   catalog.setId(TEST_CATALOG);
   modelService.save(catalog);
   // create test catalog version
   final CatalogVersionModel catalogVersion = new CatalogVersionModel();
   catalogVersion.setCatalog(catalog);
   catalogVersion.setVersion(TEST_VERSION);
   modelService.save(catalogVersion);
   // create test product
   final ProductModel product = new ProductModel();
   product.setCode(TEST_PRODUCT);
   product.setCatalogVersion(catalogVersion);
   modelService.save(product);
   // set current user
   userService.setCurrentUser(user);
   // create search restriction
   commonI18NService.setCurrentLanguage(commonI18NService.getLanguage(LANG_EN));
   final Map<String, String[]> params = new HashMap<String, String[]>();
   params.put("customerreview.searchrestrictions.create", new String[] {"true"});
   final SystemSetupContext ctx =
       new SystemSetupContext(params, Type.ESSENTIAL, Process.ALL, "customerreview");
   customerReviewSystemSetup.createSearchRestrictions(ctx);
   // enable search restrictions
   searchRestrictionService.enableSearchRestrictions();
   // make sure that number of customer reviews is 0
   assertEquals(
       INVALID_NUMBER_OF_CUSTOMER_REVIEWS,
       Integer.valueOf(0),
       customerReviewService.getNumberOfReviews(product));
   // create restricted customer review
   createCustomerReview(null, user, product, CustomerReviewApprovalType.PENDING);
   // create valid customer review
   createCustomerReview("headline", user, product, CustomerReviewApprovalType.APPROVED);
   // make sure that number of customer reviews is 1
   assertEquals(
       INVALID_NUMBER_OF_CUSTOMER_REVIEWS,
       Integer.valueOf(1),
       customerReviewService.getNumberOfReviews(product));
   // disable search restrictions
   searchRestrictionService.disableSearchRestrictions();
   // make sure that number of customer reviews is 2
   assertEquals(
       INVALID_NUMBER_OF_CUSTOMER_REVIEWS,
       Integer.valueOf(2),
       customerReviewService.getNumberOfReviews(product));
 }
 private void createCustomerReview(
     final String headline,
     final UserModel user,
     final ProductModel product,
     final CustomerReviewApprovalType approvalStatus) {
   final CustomerReviewModel review =
       customerReviewService.createCustomerReview(
           Double.valueOf(3.0), headline, COMMENT, user, product);
   review.setApprovalStatus(approvalStatus);
   review.setLanguage(commonI18NService.getCurrentLanguage());
   modelService.save(review);
 }