Making The Move With ID Locator In Selenium WebDriver

If you are beginning with Selenium, you may be unsure about what to do and how to do it? In my opinion, I find locators to be the best step to start brushing or learning Selenium. Locators are the foundation of building your Selenium Script. With the use of locators, one can locate the element on the web page. Not just locating an element is important but making sure it’s fast and accurate is equally important. One such locator is the ID locator in Selenium WebDriver that does this business.

When To Opt For ID Locator In Selenium WebDriver?

Using ID Locator in Selenium WebDriver is the fastest and the most reliable among all the locators. ID’s are supposed to be unique to each element, making the ID locator as a dependable choice. Since browsers do not make it mandatory for ID to be unique thereby making developers take leverage of it and may lead to ID’s either not present as part of an attribute or autogenerated, or not unique to a page. Due to the mentioned issues, it may require switching to other locators.
Other than ID locator in Selenium WebDriver, there are multiple locators in Selenium WebDriver:

Using ID Locator in Selenium WebDriver

Here I will be sighting an example of LambdaTest login page example for ‘Remember me’ functionality. Below is the screenshot of the same.

Referencing the below DOM structure for ‘Remember me’ element:
< input type="checkbox" name="remember" id="remember" class="form-check-input" >
As you can see, the above tag has multiple attributes, one of which is the ID locator.

Syntax For ID Locator In Selenium WebDriver

In order to use the ID locator in Selenium WebDriver to find an element via ID we use the below syntax:
driver.findElement(By.id("remember "));
Now, let’s try to incorporate this into a real-time example. In this example, I will be using the facebook login page, to login using ID locators for interacting with the WebElement object.
Below is the DOM structure for email, password and log in field of the facebook login page:
< input type="email" class="inputtext" name="email" id="email" value="sadhvisingh9049@gmail.com" data-testid="royal_email" >
< input type="password" class="inputtext" name="pass" id="pass" data-testid="royal_pass" >
< input value="Log In" aria-label="Log In" data-testid="royal_login_button" type="submit" id="u_0_8" >
Referenced is the screenshot highlighting the same:

Delving Into Code For ID Locator In Selenium WebDriver

The below code will help you relate with the demonstration of ID locator in Selenium WebDriver in a better way. Let’s dig into it:
package Chromedriver;

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;

public class Locator_By_ID {

public static void main(String[] args) {
// TODO Auto-generated method stub

//Setting up chrome using chromedriver by setting its property
System.setProperty("webdriver.chrome.driver", "Pth of chrome driver");

//Opening browser
WebDriver driver= new ChromeDriver() ;

//Opening window tab in maximize mode
driver.manage().window().maximize();

//Opening application
driver.get("https://www.facebook.com");

//Locating the email field element via ID tag and storing it in the webelement
WebElement email_field=driver.findElement(By.id("email"));

//Entering text into the email field
email_field.sendKeys("sadhvisinghXXXX@gmail.com");

//Locating the password field element via ID tag and storing it in the webelement
WebElement password_field=driver.findElement(By.id("pass"));

//Entering text into the password field
password_field.sendKeys("xxxxxxxxx");

//Locating the login button to login to the application
WebElement login_button=driver.findElement(By.id("u_0_2"));

//Clicking on the ‘login’ button
login_button.click();

}

}

Another Example For Demonstrating The ID Locator

Let’s cater to another similar example for ID where we are making a booking through Airbnb:

Below is the DOM structure for the same:
Location field:
< input type="text" class="_up0kwni" aria-autocomplete="list" aria-describedby="Koan-magic-carpet-koan-search-bar __description" aria-expanded="false" autocomplete="off" autocorrect="off" spellcheck="false" id="Koan-magic-carpet-koan-search-bar__ input" name="query" placeholder="Anywhere" role="combobox" value="Delhi" >
Check-in:
< input type="text" class="_14fdu48d" data-veloute="checkin_input" id="checkin_input" name="checkin" placeholder="dd-mm-yyyy" value="Wed, 10th Apr" readonly="" >
Checkout:
< input type="text" class="_14fdu48d" data-veloute="checkout_input" id="checkout_input" name="checkout" placeholder="dd-mm-yyyy" value="Sun, 14th Apr" readonly="" >
Search Button:
< button type="submit" class="_z5x9aua" aria-busy="false" >< span class="_ftj2sg4" >Search< /span >< /button >
Now let’s dig into the code snippet:
package Chromedriver;

import org.openqa.selenium.By;
import org.openqa.selenium.Keys;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;

public class ID_Location {

public static void main(String[] args) throws InterruptedException {
// TODO Auto-generated method stub

//Setting up chrome using chromedriver by setting its property
System.setProperty("webdriver.chrome.driver", "path of chromedriver");

//Opening browser
WebDriver driver= new ChromeDriver() ;

//Opening window tab in maximize mode
driver.manage().window().maximize();

//Opening application
driver.get("https://www.airbnb.co.in/");

//Locate element via ID for Location field and store it in Webelement
WebElement Location= driver.findElement(By.id("Koan-magic-carpet-koan-search-bar__input"));

//Input value in Location field
Location.sendKeys("Delhi", Keys.ENTER);

//Locate element via ID for Check-in field and store it in Webelement
WebElement Check_in= driver.findElement(By.id("checkin_input"));

//Click on Check_in field to select the date
Check_in.click();

//Select the desired date
driver.findElement(By.xpath("//*[@id=’MagicCarpetSearchBar’]/div[2]/div/div/div/div[2]/div/div/div/div/div/div[2]/div[2]/div/div[2]/div/table/tbody/tr[2]/td[3]")).click();

//Locate element via ID for Check-out field and store it in Webelement
WebElement Check_out= driver.findElement(By.id("checkout_input"));

//Click on Check_out field to select the date
Check_out.click();

//Wait for date selection
Thread.sleep(3500);

//Select the desired date
driver.findElement(By.xpath("//*[@id=’MagicCarpetSearchBar’]/div[2]/div/div/div/div[3]/div/div/div/div/div/div[2]/div[2]/div/div[2]/div/table/tbody/tr[2]/td[4]")).click();

//Locating the submit button and clicking on it
driver.findElement(By.tagName("button")).click();

//close the driver
driver.close();
}
}

It’s A Wrap!

ID’s are the most reliable and easiest way to locate an element owing to its uniqueness. So if you are starting with Selenium WebDriver, ID’s can be your best friend. But make sure you to hit on the right track while locating them, and be aware of duplicate IDs or auto-generated ones. Happy testing! 🙂

Related Article:

Locating Elements by TagName In Selenium
How To Use Name Locator In Selenium Automation Scripts?
LambdaTest Launches API For Selenium Automation!

Link: https://dev.to/sadhvisingh1/making-the-move-with-id-locator-in-selenium-webdriver-2g25