@isTest
private with sharing class webhookClassTest {
    static testMethod void testParse() {
        String json=        '{"webhook": { "topic": "customers/create","address": "https://hicsfshopify-developer-edition.ap4.force.com/services/apexrest/UpdateCustomerFromShopify/","format": "json"}}';
        webhookClass obj = webhookClass.parse(json);
        System.assert(obj != null);
    }
    
}