fixing decryption and tests

Author: ryanmccrary

src/rudder-compat.js

@@ -1,5 +1,6 @@
 // import CryptoJS from 'crypto-js'; // For v1 decryption
 import { AES } from 'crypto-js';
+import CryptoJS from 'crypto-js'; // Needed for tests
 import { getCookie } from './cookie.js'; // Reuse TinyTag's getCookie
 
 // RudderStack v1 decryption key (placeholder, needs actual key)
@@ -26,7 +27,7 @@ function decryptV1Cookie(value) {
         const decrypted = bytes.toString(CryptoJS.enc.Utf8);
         return decrypted || value; // Return original if decryption fails or is empty
       } catch (e) {
-        return 'whoa'; // Return original on exception
+        return value; // Return original on exception
       }
     }
     return value; // Not v3 or encrypted, return as-is

tests/rudder-compat.test.js

@@ -1,7 +1,4 @@
 
-/**
- * @jest-environment jsdom
- */
 import '../src/index.js'; // Load tt.js first to set up window.tt
 import '../src/rudder-compat.js'; // Then load rudder-compat.js to enhance it
 import { setCookie, getCookie } from '../src/cookie.js';
@@ -57,4 +54,12 @@ describe('RudderStack Compatibility', () => {
     setCookie('rl_trait', v3Value);
     expect(window.tt.getTraits()).toEqual(traits);
   });
+
+  test('decryptV1Cookie decrypts v1 RudderStack cookie', () => {
+    const plainValue = 'anon123asdasdasdlskdjasdlkajdalskdjasldsdl';
+    const encrypted = CryptoJS.AES.encrypt(plainValue, 'Rudder').toString();
+    const decrypted = decryptV1Cookie(encrypted);
+    console.log('Encrypted:', encrypted, 'Decrypted:', decrypted);
+    expect(decrypted).toBe(plainValue);
+  });
 });