Added $ulid Function for Dynamic Variable

lib/superstring/dynamic-variables.js

@@ -1,5 +1,6 @@
 var faker = require('@faker-js/faker/locale/en'),
     uuid = require('uuid'),
+    ulid = require('ulid'),
 
     // locale list generated from: https://github.com/chromium/chromium/blob/master/ui/base/l10n/l10n_util.cc
     LOCALES = ['af', 'am', 'an', 'ar', 'ast', 'az', 'be', 'bg', 'bh', 'bn', 'br', 'bs', 'ca', 'ceb', 'ckb', 'co', 'cs',
@@ -616,6 +617,10 @@ var faker = require('@faker-js/faker/locale/en'),
         $randomSemver: {
             description: 'A random semantic version number',
             generator: faker.system.semver
+        },
+        $ulid: {
+            description: 'An universally unique lexicographically sortable identifier',
+            generator: ulid.ulid
         }
     };
 

package.json

@@ -42,6 +42,7 @@
     "mime-types": "2.1.35",
     "postman-url-encoder": "3.0.5",
     "semver": "7.6.3",
+    "ulid": "2.3.0",
     "uuid": "8.3.2"
   },
   "devDependencies": {

test/unit/dynamic-variables.test.js

@@ -104,5 +104,10 @@ describe('Dynamic variable', function () {
             expect(avatarImage).to.be.a('string')
                 .and.match(/^https:\/\/(avatars\.githubusercontent\.com|cloudflare-ipfs\.com)\/.+/);
         });
+
+        it('$ulid should return a valid ulid', function () {
+            expect(dynamicVariables.$ulid.generator())
+                .to.match(/^[0-9A-HJKMNP-TV-Z]{26}$/);
+        });
     });
 });