Test the user behavior when a user click a tag and redirect.

testRedirectAndBack.js

/*
    Created by jsgao0 on 2016/06/15.
    The intallation guide: http://docs.casperjs.org/en/latest/installation.html
    Steps:
        1: Install PhantomJS globally.  npm install phantomjs -g
        2: Install CasperJS globally.  npm install casperjs -g
        3: Execute tests.  casperjs test testRedirectAndBack.js
*/

casper.test.begin('Test redirect and back to URLs.', 5, function suite(test) {
    casper
        .start('https://github.com/', function() { // Check HTTP status code is 200.
            test.assertHttpStatus(200);
        })
        .then(function() { // Check page content.
            test.assertTitle('How people build software · GitHub');
            test.assertUrlMatch(/^https:\/\/github.com/, 'We are at GitHub home page.');
        }).then(function() { // Test click /personal and go to Personal page. Then, back to home page.
            this.click('a[href$=personal]'); // #1 Trigger click on a[href$=personal].
            this.wait(2000, function() { // #2 Wait for 2 seconds and check we are at Personal page.
                test.assertUrlMatch(/^https:\/\/github.com\/personal/, 'We are at Personal page.');
            });
            this.wait(100, function() { // #3 This is important. Use this.wait for synchronized testing or this will be fired after #1 and before #2. 
                casper.back();
            });
            this.wait(2000, function() { // #4 Wait for 2 seconds and check we are at GitHub home page.
                test.assertUrlMatch(/^https:\/\/github.com/, 'We are at GitHub home page.');
            });
        }).run(function() {
            test.done();
        });
});