       var url = 'hello-foo-' + randomNumber + '.html';
            history.pushState(state, title, url);
        }

        function testHistoryPush2() {
            var randomNumber = 100 * Math.random();
            var title = 'Hello World ' + randomNumber;
            var url = 'hello-bar-' + randomNumber + '.html';
            history.replaceState(state, title, url);
        }

        function testLocationHref() {
            var randomNumber = 100 * Math.random();
            window.location = "#foo