casperjs official example

gistfile1.js

var links = [];
var casper = require('casper').create();

function getLinks() {
    var links = document.querySelectorAll('h3.r a');
    return Array.prototype.map.call(links, function(e) {
        return e.getAttribute('href')
    });
}

casper.start('http://google.fr/', function() {
    // search for 'casperjs' from google form
    this.fill('form[action="/search"]', { q: 'casperjs' }, true);
});

casper.then(function() {
    // aggregate results for the 'casperjs' search
    links = this.evaluate(getLinks);
    // now search for 'phantomjs' by filling the form again
    this.fill('form[action="/search"]', { q: 'phantomjs' }, true);
});

casper.then(function() {
    // aggregate results for the 'phantomjs' search
    links = links.concat(this.evaluate(getLinks));
    for (var i = 0; i < links.length; i++) {
      this.test.assertMatch(links[i], /[casperjs|phantomjs]/, links[i] + ' contains casperjs keyword');
    }
});

casper.run(function() {
    // echo results in some pretty fashion
    //this.echo(links.length + ' links found:');
    //this.echo(' - ' + links.join('\n - ')).exit();
    this.test.renderResults(true);
});