How to run a javascript function before starting any test case in Protactor?

Question

Actually, i am writing some test cases for one angular app but the first page is taking too much time too load and having a popup box for instruction. So i need to store some value in localStorage of browser for making that popup box invisible. So how can i run any javascript function before running any test case?

Answer 1

By default, protractor is syncing with angular, which makes it wait for $http or $timeout you can check if that's the case on this particular page with this: Canonical way to debug Protractor-to-Angular sync issues

or you can inject the behaviour with mocked module

protractor.config.js

onPrepare: function() {
    var doTheFuncyStuff= function() {
        angular
            .module('doTheFuncyStuff', [])
            .run([function(){
              //do something here so the popup isn't displayed
              window.localStorage.setItem('my-var', 'my-val');
            }]);
    };

    browser.addMockModule('doTheFuncyStuff', doTheFuncyStuff);
}