Selenium WebDriver Tutorial: What? Why? How?

Selenium WebDriver Tutorial: What? Why? How?

Selenium WebDriver Tutorial: What? Why? How?

Software Testing plays a very important role in the Software Development Life Cycle and is responsible for providing the end polished result. Simply stating, testing is a step where the software is checked, monitored, intentionally broken, fixed, and made sure that quality software is delivered to the end-user. A team is specifically trained in testing and catching such faults in software and the more they find the better product will be. Keep reading to explore the Selenium Webdriver Tutorial for beginners.

The Traditional Testing Methods

The software passed out of the development phase is handed to test engineers and they are supposed to try it, use it and critically find flaws with the help of various testing techniques and methodologies. Here, we have engineers sitting in front of the computer, looking for faults within the software screens, giving in inputs, and comparing the output and the flow. Upon finding faults, they are reported back to the development team, where the dev team makes the changes where needed, and then again it’s on the desk of a tester. This cycle or traditional testing process order continues until an expected version of better software is created.

What is the Need for Automation Testing?

What happens when automation is implemented within testing is that a Test Automation Software is used. This Automation Software is a combo of various testing tools, scripts, and scenarios. This tool is already packed with expected paths to test the software, actions are predefined, then it records the output result, whether it works or fails and reports are delivered to the test engineer. Now, the long queue of tasks is done by the software itself instead of the engineers which saves a lot of time and the company’s resources.

Let’s start with the selenium webdriver basics..

What is Selenium WebDriver?

It is a free, open-source automated testing tool, which is used to check web applications over various platforms and web browsers such as Firefox, Chrome, IE, and Safari. It allows you to use multiple programming languages to test and the part we are using is Selenium Web Driver, which was created in 2006 by Simon Stewart for the purpose of cross-platform testing.   

How to Automate Software Testing Using a Selenium Web Driver?

The process to implement Selenium WebDriver to automate testing is simple and consists of a few steps, starting from creating a WebDriver Instance. A Selenium WebDriver is a simple program that browses the web page just as a human would and has been an impressive improvement for automation. It is simple, supports multiple languages, and works efficiently. This webdriver will be the starting point and is created with a constructor, which might have different names for different programming languages.

Once we have our WebDriver, we will begin our process and navigate it to the HTML, or web page of our choice by simply invoking a get method. The navigation is simply executed with driver.navigate().to(URL); here the URL will be the web page address. We can pass a String too.

Read also: Selenium Automation Testing Using Python

Now that we have our location to test, we will scan and look for HTML elements within the page. Here (https://www.selenium.dev/documentation/en/webdriver/web_element/) you will find a depth explanation of the elements finding. Two of the basic and most widely used commands are FindElement and FindElements, where the former searches for a single specific element on the page while the latter searches and return a list of web elements.

For the purpose of finding elements, Locator Expressions can be used and the expressions will simply locate unique elements with a combination of locator type and value, as a key-value pair.

Now that we have an element, the next step is to apply an action. A few of the widely used methods are sendKeys, clear, submit, etc. These methods are the actions that a manual tester would apply like sendKeys is used to enter the text, clear the text and submit sends the data, or submit the form. Below we have a simple line of code, which navigates through the page and locates an element and an action is performed.

The following line of code is responsible for finding an element that goes by the “yes” id, and once it is found, click it.

webdriver1.findElement(By.id(“yes”)).click();

element_form.submit(); does the job of submitting the data that was filled in. And now that we have performed the actions, we are to wait for the browser to respond.

When the button is clicked, the server will be reached and the browser will wait for a response from the server. The response here is important. It is normal to have a gap of a few seconds between submission and response.

There are two basic types of waiting which are Explicit Waits and Implicit Waits. Simply talking, Implicit waiting is not recommended as it is definite and who knows how long a browser might have to wait for a response. With that explained, Explicit waits are better and can be implemented with WebDriverWait class with a time limit.

Finally, we are in a phase to run these tests and monitor them. Until now we have set up a method of execution for auto testing. Multiple tests and retests will be executed and everything is recorded, based on the recordings tester decides the next step. There can be multiple scenarios, For forex, we can pass multiple types of input values like plain text, numbers, and symbols, and record the returns. This simple test to insert value and submit a form is the basic implementation of how automation can help in improving repeatable tasks. This is to check the working and behavior of the software. 

At last, the scripts end with webDriver.close(); marking the completion of the test. Here, webDriver.quit()l; is recommended as it quits all the resources used and web pages.

TO WRAP IT UP

There are various types of testing that, according to the needs are performed, monitored, and recorded. and according to our selenium WebDriver tutorial automation can be implemented in these various kinds of testing like Unit, Function, Keyword, Integration, Black Box, and many more, if needed.

Automation in the software industry has made its mark and many are harnessing the power with benefits that saves them money, time, and resources. Doing things that manual methods might fail to do and providing accurate results, with executing multiple scenarios at a time. Life of Developers and testers have been simplified and many more innovations are awaiting.

We hope our tutorial on selenium WebDriver makes you more familiar with the process of selenium QA testing. If you still have any questions please connect with us. We are a Selenium Test Automation Company and would love to support you.

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