Selenium Training Tutorials:
In this Selenium training series we are going to cover all Selenium screening notions and its particular packages in detail with simple to understand practical examples. These Selenium tutorials are helpful for beginner to advanced degree Selenium users. Starting from your very fundamental Selenium concepts tutorial, we'll gradually move on to the advanced subjects like Cucumber BDD, Selenium Grid and Framework creation.How to start Learning Selenium?
This really is the most effective time to start learning Selenium screening by your own using the help of this free Selenium Training series. Read tutorials, training examples at your property, and place your queries in opinion section of various tutorials. We'll address all of the queries.
Seasoned Selenium experts - by providing answers to reader's queries in remarks, you too can take part in this chain.
That is our serious effort to assist you master one of the very most popular software testing tools and grasp!
Selenium Introduction:
We're delighted to launch our yet another string of software testing training tutorials. The belief behind introducing this tutorial will be to make you an expert in a widely used software test automation alternative, Selenium.
In this series we shall consider the various facets of Selenium. Selenium is not just a tool; it's a bunch of independent tools. We are going to look into several of the tools at length, providing examples that are practical wherever appropriate.
Before you leap in to reading this fascinating and useful chain, let's take a look at what it has got in store for you personally.
Why Selenium?
As the existing industry trends have shown that there's mass movement towards automation testing. The clustering of repetitive manual screening scenarios has raised a demand to make the practice of automating these situations that were manual.
Of executing automation evaluation, the advantages are several; let us have a look at them:
- Supports performance of test cases that are repeated
- In testing a big evaluation matrix, guides
- Empowers parallel execution
- Supports unattended execution
- Enhances precision thus reducing human created errors
- Saves time and money
This results into the following:
- High ROI
- Faster GoTo market
- Automation testing benefits well understood and are many and largely discussed in the program evaluation business.
One of the most often asked question comes with this is -
- What is the very best tool for me personally to get my tests automated?
- Is there a cost involved?
- Might it be easy to accommodate?
- One of the greatest replies to each of the aforementioned questions for automating web based applications is Selenium.
Because:
- It is open source
- Have assisting communities and a big user base
- Have platform compatibility and multi-browser
- Has repository developments that are energetic
- Supports multiple language implementations
First glance at Selenium:
Selenium is among the most famous automated testing packages. Inspire and selenium is designed in a way to to guide automation testing of practical areas of internet based an extensive range of browsers and platforms and applications. As a result of its being in the open source community, it's become among the very applications that are recognized amongst the testing experts.
Selenium Parts:
Selenium is not only a single program or a utility, instead a package of several testing tools as well as for the same reason it is known as a Suite. Each of these tools is designed to cater distinct testing and test environment requirements.
The suite program constitutes of the following sets of tools:
- Selenium Integrated Development Environment (IDE) Selenium intro 2
- Selenium Remote-Control (RC) Selenium intro 3
- Selenium WebDriver
- Selenium Grid Selenium intro 4
Selenium RC and WebDriver, in a mixture are popularly called Selenium 2. Selenium RC alone is also referred as Selenium 1.
Brief Introduction to Selenium software
Selenium is due to constant efforts by an engineer at Thought Works, named as Jason Huggins. Being responsible for the testing of Expenditures program and an internal Time, he realized the significance of an automation testing tool in order to get rid of repetitive manual tasks without compromising together with the standard and accuracy.
As a result, he constructed a JavaScript program, named as "JavaScriptTestRunner" in early 2004 that could automatically control the browser's actions which looked very much similar to that of a person communicating with the browser.
Henceforth, Jason started demoing the device to the vast audience. Eventually the discussions were presented to categorize this program in the open source class along with its possibility to grow as a re-usable testing frame work for other internet based applications.
The program was later on acclaimed using the name "Selenium Core".
Selenium IDE (Selenium Integrated Development Environment)
Selenium IDE was created by Shinya Kasatani. While analyzing Selenium Core, he realized this JavaScript code may be expanded to produce an integrated development environment (IDE) which can be plugged in to Mozilla Firefox. This IDE was capable of recording and playing back the consumer activities on a Firefox example to which it had been plugged-in. Later on Selenium IDE became a part of Selenium Program in the yr 2006. The tool turned a fantastic worth and potential out to the city.
Selenium IDE is easiest and the most straightforward of all of the applications within the Selenium Program. Its record and play back feature makes it extraordinarily simple to understand to any programming language with minimum acquaintances. With several advantages, a few disadvantages accompanied Selenium IDE, hence rendering it inappropriate to be utilized in instances of test scripts that were more advanced.
Advantages and disadvantages of Selenium IDE:
The minuses of IDE are in reality not minuses of selenium, rather merely constraints to what IDE could realize. These restrictions can be overcome by using Selenium RC or WebDriver.
Selenium RC (Selenium Remote Control)
Selenium RC is a program that is written in java that enables a user to construct test scripts for a web based application in which ever programming language he or she chooses. Selenium RC came as result to conquer various disadvantages incurred Heart or by Selenium IDE.
While utilizing Selenium Core restrictions and loopholes that were imposed caused it to be hard for the user to leverage the advantages of the tool to its totality. Hence it made an endeavor that was far reaching as well as the screening process a cumbersome.
One of the limitations that are crucial was same origin policy.
Difficulty of origin policy:
The problem of origin policy disallows to get the DOM of a file from an origin that is different from your source we are attempting to gain access to the file.
Hence the Selenium Core (JavaScript Program) cannot obtain the elements from an origin that is different from where it had been found.
For Instance, if I have found the JavaScript Program, then I 'd not be unable to get into the pages within exactly the same domain. The other domains like google.com, yahoo.com would no more be accessible.
Consequently, to analyze the application using Selenium Core, one must install web server along with the complete program on the Selenium Core to beat the issue of same origin policy.
So, In order to regulate the same origin coverage with no need of creating a separate copy of Program under evaluation on the Selenium Core, Selenium Remote-Control was introduced. Still another fellow associate at ThoughtWorks identified Paul Hammant suggested a workaround of origin policy as well as a tool that can be wired up with a programming language of our choice while Jason Huggins was demo-ing Selenium. So Selenium RC came into existence.
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