Refactor testGroup initialization to use BigInt for consistency in Rokt-Kit and tests

Author: Guillermo Tamanaha

src/Rokt-Kit.js

@@ -410,7 +410,7 @@ var constructor = function () {
     this.setUserAttribute = setUserAttribute;
     this.onUserIdentified = onUserIdentified;
     this.removeUserAttribute = removeUserAttribute;
-    this.testGroup = [382761173318339093846102813504170n];
+    this.testGroup = [BigInt('382761173318339093846102813504170')];
 
     /**
      * Checks if the Rokt kit is ready to use.

test/src/tests.js

@@ -583,7 +583,7 @@ describe('Rokt Forwarder', () => {
         });
 
         it('should create a local launcher if the partner is in the local launcher test group', async () => {
-            window.mParticle.forwarder.testGroup = [249896952128253326n];
+            window.mParticle.forwarder.testGroup = [BigInt('249896952128253326')];
 
             await window.mParticle.forwarder.init(
                 { accountId: '123456' },