updating unit test

Author: mansisampat

packages/auth/src/core/auth/auth_impl.test.ts

@@ -28,6 +28,7 @@ import {
   FAKE_APP_CHECK_CONTROLLER_PROVIDER,
   FAKE_HEARTBEAT_CONTROLLER,
   FAKE_HEARTBEAT_CONTROLLER_PROVIDER,
+  regionalTestAuth,
   testAuth,
   testUser
 } from '../../../test/helpers/mock_auth';
@@ -308,16 +309,17 @@ describe('core/auth/auth_impl', () => {
       expect(persistenceStub._remove).to.have.been.called;
       expect(auth.currentUser).to.be.null;
     });
-    // it('sets currentUser to null, calls remove', async () => {
-    //   const token: FirebaseToken = {
-    //     token: 'test-token',
-    //     expirationTime: 123456789
-    //   };
-    //   await auth._updateFirebaseToken(token);
-    //   await auth.signOut();
-    //   expect(persistenceStub._remove).to.have.been.called;
-    //   expect(auth.firebaseToken).to.be.null;
-    // });
+    it('sets currentUser to null, calls remove', async () => {
+      const regionalAuth = await regionalTestAuth();
+      const token: FirebaseToken = {
+        token: 'test-token',
+        expirationTime: 123456789
+      };
+      await regionalAuth._updateFirebaseToken(token);
+      await regionalAuth.signOut();
+      expect(persistenceStub._remove).to.have.been.called;
+      expect(regionalAuth.firebaseToken).to.be.null;
+    });
     it('is blocked if a beforeAuthStateChanged callback throws', async () => {
       await auth._updateCurrentUser(testUser(auth, 'test'));
       auth.beforeAuthStateChanged(sinon.stub().throws());