Update mock.js (#681)

Fixed the mock response bug.

Author: rkaartikeyan

mock.js

@@ -51,14 +51,14 @@ export const checkMultiple = jest.fn(async (permissions) =>
   permissions.reduce((acc, permission) => ({
     ...acc,
     [permission]: RESULTS.GRANTED,
-  })),
+  }), {}),
 );
 
 export const requestMultiple = jest.fn(async (permissions) =>
   permissions.reduce((acc, permission) => ({
     ...acc,
     [permission]: RESULTS.GRANTED,
-  })),
+  }), {}),
 );
 
 export default {