What is Selenium ? Introduction to Automation Testing

Selenium is one of the most widely used Web UI (User Interface) automation testing suite. It is an open source tool which is used for automating the tests carried out on different web browsers and platform.

Advantages of Selenium over other tool:

Programming Language supported: Java, Python, C#, PHP, Ruby, Perl & .Net

Supports OS (Operating System) for Web Application: Windows, Mac or Linux

Supports OS (Operating System) for mobile applications: iOS, windows mobile and android

Browsers supported: Internet Explorer, Mozilla Firefox, Google Chrome and Safari

Integrate with Framework for managing testcases and generating reports: TestNG & JUnit

Integrate with automation test tool to Achieve continuous testing: Maven, Jenkins & Docker

Run First Test on Chrome Browser

Chrome browser implements the WebDriver protocol using an executable called ChromeDriver.exe. This executable starts a server on your system which will be responsible for running your test script in selenium.

Testcase: Open chrome browser and navigate to “https://demoapp1.tequality.tech/” and close the browser

 

Step1: Right click on src folder and select New > Class

 

Step2: Provide Class Name and click on Finish

 

Step3: Open URL: https://sites.google.com/a/chromium.org/chromedriver/downloads in your browser and select any of the latest chrome driver version according to your browser version

Step4: Download executable file as per the operating system you are working on.

For windows, click on the “chromedriver_win32.zip” download and unzip the file.

 

Step5: Set a system property “webdriver.chrome.driver” to the path of your ChromeDriverServer.exe file and instantiate an ChromeDriver class.

Here below your test script will look like

 

import org.openqa.selenium.By;
import org.openqa.selenium.Cookie;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;

public class FirstChromeTest {

public static void main(String[] args) {

// System Property for Chrome Driver 
System.setProperty("webdriver.chrome.driver", "E:\chromedriver.exe"); 

// Instantiate a ChromeDriver class. 
WebDriver driver=new ChromeDriver(); 


//Maximize the browser window driver.manage().window().maximize();
driver.manage().window().maximize();


// Launch Website and navigate to URL
driver.get("https://demoapp1.tequality.tech/");

//close the browser
driver.close();

}

}

Step6: Run the code by right click on the Eclipse code and select Run As > Java Application

Browser Navigation Command

Navigation Commands are able open a web page URL, navigate to another web page or navigate back, Forward or Refresh the web page using browser’s history.

Given below are the Navigation commands for Selenium WebDriver.

1. Navigate.To()

This method is used to redirect to the new web page from the existing web page. It maintains browser history and cookies, unlike get method. It accepts string as a parameter and returns void.

driver.navigate().to(“https://demoapp1.tequality.tech/”);

 

2. Navigate.Forward()

This method takes to the forward page of the existing browser window. It neither accepts anything nor returns anything.

driver.navigate().forward();

 

3. Navigate.Backward()

This method takes to the backward page of the existing browser window. It neither accepts anything nor returns anything.

driver.navigate().back();

 

4. Navigate.Refresh()

This method is used to refresh or reload the current page in the existing browser window. It neither accepts anything nor returns anything.

driver.navigate().refresh();

 

Name

Name locator is also an effective way to locate an element in Selenium. It is similar way locating elements as that of ID locator. These are not unique on DOM. If there are multiple elements present with the same Name locator in the DOM then the first element on the page is selected while locating with below methods.And if there is no DOM element available with the given Name, then NoSuchElementException is raised in that case.

 

Syntax: WebElement element = driver.findElement(By.name(<NAME>));

 

Let’s take an example by locating “side menu” in “https://demoapp1.tequality.tech/” page.

Step1: Open “https://demoapp1.tequality.tech/“ in browser

Step2: Hover your mouse to Forms present in side-menu

Step3: Right click on the mouse and do inspect element

WebElement element = driver.findElement(By.name("side-menu-form"));