feat: add certification thing

test/guards.spec.ts

@@ -12,13 +12,8 @@
  * You should have received a copy of the GNU General Public License along with
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
-import {expect} from 'chai';
 import {slow, suite, test, timeout} from '@testdeck/mocha';
-import {SCBulkResponse} from '../src/protocol/routes/bulk-request';
-import {SCMultiSearchResponse} from '../src/protocol/routes/search-multi';
-import {SCSearchResponse} from '../src/protocol/routes/search';
-import {SCThingOriginType, SCThingType} from '../src/things/abstract/thing';
-import {SCDish} from '../src/things/dish';
+import {expect} from 'chai';
 import {
   isBulkResponse,
   isMultiSearchResponse,
@@ -26,10 +21,14 @@ import {
   isThing,
   isThingWithTranslations,
 } from '../src/guards';
+import {SCBulkResponse} from '../src/protocol/routes/bulk-request';
+import {SCSearchResponse} from '../src/protocol/routes/search';
+import {SCMultiSearchResponse} from '../src/protocol/routes/search-multi';
+import {SCThingOriginType, SCThingType} from '../src/things/abstract/thing';
+import {SCDish} from '../src/things/dish';
 
 @suite(timeout(10000), slow(5000))
 export class GuardsSpec {
-
   static bulkResponse: SCBulkResponse = {
     expiration: '2009-06-30T18:30:00+02:00 ',
     source: 'bar',
@@ -39,9 +38,7 @@ export class GuardsSpec {
   };
 
   static dishWithTranslation: SCDish = {
-    categories: [
-      'appetizer',
-    ],
+    categories: ['appetizer'],
     name: 'foo',
     origin: {
       created: '',
@@ -57,9 +54,7 @@ export class GuardsSpec {
   };
 
   static notADish = {
-    categories: [
-      'appetizer',
-    ],
+    categories: ['appetizer'],
     name: 'foo',
     origin: {
       created: '',
@@ -70,18 +65,16 @@ export class GuardsSpec {
   };
 
   static searchResponse: SCSearchResponse = {
-    data: [
-      GuardsSpec.dishWithTranslation,
-    ],
+    data: [GuardsSpec.dishWithTranslation],
     facets: [
       {
-       buckets: [
-         {
-          count: 1,
-          key: 'key',
-         },
+        buckets: [
+          {
+            count: 1,
+            key: 'key',
+          },
         ],
-       field: 'field',
+        field: 'field',
       },
     ],
     pagination: {