div.menu4 { /*width:500px;margin:0 auto;*//*Uncomment this line to make the menu center-aligned.*/ text-align:center; font-size:0; height: 25px; *position:relative;*top:1px;/*Hacks for IE6 & IE7 */ } div.menu4 a { display: inline-block; margin-right:6px; /* It specifies the distance between each tab */ background:#FFF url(bg.gif) repeat-x 0 0; padding-left:4px; vertical-align:top;/*ChangeSet#1*/ text-decoration:none; } div.menu4 a span { display: inline-block; background:#FFF url(bg.gif) repeat-x 100% 0; padding: 0 20px; text-decoration:none; font: normal 12px Arial; line-height: 25px; color:#7087A9; vertical-align:top; } div.menu4 a:hover, div.menu4 a.current { background:#FFF url(bg.gif) repeat-x 0 -25px; line-height: 26px; } div.menu4 a:hover span, div.menu4 a.current span { background:#FFF url(bg.gif) repeat-x 100% -25px; line-height: 26px; color:#244D8A; } div.menu4sub { height:8px; border:1px solid #C2D5EF; background:#eee url(bg.gif) repeat-x 0 -50px; }

Tuesday, 23 February 2016

Phantom JS VS Selenium

Which is a superior screening framework?

Program testing is an indispensable part of the whole app development endeavor. Regardless of what type of functionality and attribute you have incorporated into the app, ignoring to analyze it for bugs is a huge 'No'. Due to the option of high-end Java Script testing frameworks like Selenium and Phantom JS.

we can conveniently analyze the web programs in headless browsers that are diverse along with actual browsers. Continue reading the post as I Will be taking you through the crucial points of distinction between Phantom JS and Selenium - two best-executing testing frameworks that are JavaScript. Thus, let's get to learn the differences immediately!

Before continue towards researching the 2 equally well known screening frameworks viz: Phantom JS and Selenium, it is vital for you to be aware of the key difference between headless and browsers that are actual. Well, a headless browser is simply a web browser that lacks a graphical user interface.

That means, this is a browser which accesses unique web pages but doesn't reveal an internet person them. Browsers are only useful for providing particular web site content to other software applications. On the flip side, we have the real browsers wherein the program/website testing is already defined as per a particular set of actions that could be taken by a person in the preferred desktop/mobile browser.

It is also vital that you understand that performance of a real browser test-case will expect one to start a real browser, adopted by managing it utilizing automation APIs for performing the actions that are specified.

And now, I would like to take you on a journey where I Will be investigating two leading JavaScript testing frameworks viz: Selenium and Phantom JS

Primarily, let us get to know about Phantom JS
Phantom is an invisible, programmable browser which doesn't behave like a browser window that is real. Using the flexibility to run commands considerably faster, Phantom can easily work in synchronization with testing framework and an appropriate test runner.

Capybara etc., with Mocha, Phantom JS can operate for instance Acceptable for first level Phantom JS, of JavaScript app testing has its API centered on JavaScript. Backed by command-line based usage, Phantom JS assures that the Java Script code of the web site is sandboxed and doesn't leave anything on the screen , refraining it from interacting with the principal tool.

Phantom JS- The Pros:

Now, let's have a look at some of the pros related to Phantom JS:

  • Requires lesser amount of resources
  • Doesn't require any external/third party services
  • Acts as a self contained command-line application
  • Runs several test cases quicker
  • Best satisfied for smoke testing of web apps; either as section of the program development work flow or within the consistent integration server
  • Phantom JS- The Disadvantages

Now, arriving at the cons connected with Phantom JS:
  • Serves as one variant of Web Kit
  • Is not suitable for extensive screening of web apps
  • There's a visible insufficient Ecosystem
  • Then let us take a nearer look at Selenium
Selenium is essentially a package of tools that are required for automating browsers across several platforms. Packaged together with the support of browser sellers that are top, Selenium is being regarded as the core technology that's utilized in an endless amount of automation tools APIs and frameworks. Selenium can be found in two variants as described below:

Selenium WebDriver:

You can choose this if you're inclined on making browser-based tests and automation packages. Additionally, this Selenium tool also operates as the most effective fit for distributing and scaling scripts across browser surroundings that are varied. Selenium WebDriver uses the Selenium Server which contains built-in grid abilities.

Selenium IDE:

Selenium IDE is the top option for programmers who want to generate scripts to be able to help with the automation-assisted testing procedure. Plus, you may take advantage of this section of Selenium for creating immediate bug replica scripts as well. Functioning as a Firefox addon, Selenium IDE will perform a record-and-playback of numerous interactions help using the browser that is chosen.

Selenium- The Pros:

  • Let you walk through some pros related to Selenium:
  • Can be controlled by multiple programming languages and testing frameworks
  • Runs in operating systems and multiple browsers
  • Selenium enables an automatic control of browsers that are real on operating systems that are real, thereby ensuring the evaluations are excessively close to reality
  • Selenium bindings can be used for controlling Phantom JS, thus covering more than 90 90% of the screening requirements.
  • For powerful testing that is added, Selenium permits added browser connections to be set up by you for changing even one line of code without the need
  • Selenium- The Minuses
Finally, a closer look at the disadvantages associated with Selenium:

Selenium does not let you to run more than only a few browsers on a single machine
Selenium setup would require centralization under a situation wherein distinct browsers are tested on different operating systems
Running multiple tests can turn to be a really drawn-out procedure

A look at the edges connected with Phantom JS

A number of the observable pros of Phantom JS comprise:
  • Doesn't require to be incorporated with a third-party service
  • Is not incapable of executing multiple test cases within a document time period
  • Functions as a self contained command-line application
  • Uses up resources that are fewer
  • Useful in case of smoke testing the internet apps. That signifies, you need to use Phantom JS for screening app within program development work flow or in the uninterrupted integration server
  • Now, let us get to understand concerning the disadvantages connected with Phantom JS
  • Working UI Testing for web apps that require to run on multiple browsers doesn't afford maximum test coverage.
  • Does not contain an entire ecosystem.
  • Phantom JS functions as one model of Net Package- maybe not a wise decision for internet app testers
  • Coming to Selenium Testing framework now

As an amazing source automation tool that is open, Selenium supports all leading operating systems and browsers like Mozilla, Firefox, IE and Safari. Capable of operating multiple tests, Selenium is a JavaScript automatic testing framework which supports all popular programming languages like Python, Java, Ruby and C #.

Distributed in the type of one jar file, Selenium Server must be downloaded. It can be used by you as a Java Script engine, together with the significance of running Selenium Server every time you want to run the internet app evaluations.

Next, we'll consider observable pros with utilizing the Selenium Testing framework associated

Backed by a sizable community of programmers who are always working on development of plug-ins which are necessitated for ensuring 100% compatibility of Selenium with all latest JavaScript front end frameworks
Accompanied by extensive documentation that is straightforward, clear and Easy To -comprehend
Selenium is really capable of utilizing bindings for permitting you to use common programming languages like JavaScript, Python and C#, Ruby
Enables characteristic test to be executed by you instantly, over the Planet Wide Web
Saves you a lot of debugging effort simply since you might be able to view see the tasks of the browser in real time
Finally, let's take a look at the disadvantages associated with using the Selenium framework
  • If you're considering testing your internet app on various browsers and operating systems, then you'll have to possess centralization to your Selenium setup
  • From working more than few browsers on one machine at a time you are refrained by the Selenium framework
  • Functioning multiple test instances with Selenium turns to be a time-consuming regime
  • Wrap it all up
When it comes to maintaining the general performance of your app, neglecting the unit testing for your web programs would land you in plenty of problem. Therefore, it's better to pick a JavaScript testing framework that's not only simple -to-use but even works as an excellent choice for executing evaluations for the log-out performance of the program.

What precisely are Headless browsers?

Well, before continuing forward, it's essential for you to understand as to which are the browsers. Browsers are the ones which provide an automatic control of a certain web page within an environment that is just similar to the one accessible within the contemporary web browsers.
The primary point of these type of browsers is the fact that they're being ran using specific network connections or command line interfaces that are certain.

Final Ideas:

It'd become rather convenient to choose the one which will fit your testing needs, together with the distinctions between Selenium and Phantom JS obvious to you by now. So the good luck and do choose just after a great deal of preparation.

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