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Testovanie web aplikácií s CasperJS (WebElement...
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Vladimír Kriška
September 06, 2012
Programming
0
270
Testovanie web aplikácií s CasperJS (WebElement #11)
Vladimír Kriška
September 06, 2012
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Transcript
CasperJS Vladimír Kriška (@ujovlado) WebElement #11
Čo je CasperJS? Navigation scripting & testing utility CasperJS je
postavený na PhantomJS - náhrada browsera využívajúca Webkit.
Čo všetko vie? • Browsovať • Vypĺňať formuláre • Klikať
• Robiť screenshoty • Sťahovať content • Testovať • ...
A ešte • Vykonávať kód na klientskej strane • Pracovať
s viewportom • ...
Inštalácia • Stiahnúť PhantomJS a CasperJS • Vytvoriť symlinky vlado@pc:~$
ln -s casper_path/bin/casperjs /usr/local/bin/casperjs vlado@pc:~$ casperjs javascript.js
Command Line Interface casper.cli.has(); casper.cli.get(); Dva prístupy. // pre options
casper.cli.has("arg"); // casper.cli.get("arg"); // pre args casper.cli.has(0); // casper.cli.get(0);
Selektory // CSS3 casper.test.assertExists('#main', 'existuje'); // XPath casper.test.assertExists({ type: 'xpath',
path: '//*[@id="main"]' }, 'existuje');
HTTP Status Codes Nezačnem testovať keď nastala chyba. casper.on('http.status.404', function()
{ this.echo('404').exit(); }); casper.start('http://localhost/404', function() { this.echo('vsetko v poriadku'); });
Verbose (debug) mode Chcem vedieť, čo sa deje var casper
= require('casper').create({ verbose: true, logLevel: "debug" }); // logovanie casper.log('debug message', 'debug');
Eventy casper.on("meno.eventu", function(resource) { // nieco sprav }); • http.status.[code]
• remote.alert • fill • start, exit • click • ...
Vlastné eventy casper.on("webelement.presentation", function (status) { this.echo("WebElement prednaska " +
status); }); casper.start("http://localhost/casperjs", function() { var presentationStatus = 'bezi'; this.emit("webelement.presentation", presentationStatus); });
Testovanie Metódy: • assert() • assertEval() • assertExists() • assertNot()
• ... this.test.assertExists('.form', 'Form existuje');
Príklady ...
Ďakujem vlado@pc:~$ casperjs presentation.js PASS Odprezentovane PASS 1 tests executed,
1 passed, 0 failed. vlado@pc:~$