8 Java Selenium Automation Testing : UnexpectedTagNameException - Handl


Java Selenium UnexpectedTagNameException - Handling Unexpected Tag Names

Selenium is a powerful tool for automating web browsers, making it easier for testers and developers to perform web-based tests. During web automation, you may encounter the "UnexpectedTagNameException," which occurs when an unexpected HTML tag name is encountered during test execution.

Understanding UnexpectedTagNameException

The UnexpectedTagNameException is thrown when an element with a different HTML tag name than expected is encountered. This can happen when you are trying to interact with an element using a method intended for a different type of element, such as using "select" method on a non-selectable element or "click" method on a non-clickable element.

Common Causes

Several common causes can lead to UnexpectedTagNameException:

  • Incorrect method usage: Using a method that expects a different element type than the actual element.
  • Dynamic changes: The element may change its tag name due to dynamic changes in the web page.
  • Incorrect element identification: Selecting the wrong element or using an outdated reference.
  • Framework compatibility issues: The automation framework may have limitations in handling certain element types.
  • Timing issues: The element's tag name is checked before the element is fully loaded or becomes interactable.

Handling UnexpectedTagNameException

To handle UnexpectedTagNameException effectively, consider the following best practices:

  1. Verify element properties: Check the element's properties and tag name before performing actions on it.
  2. Use appropriate methods: Ensure you are using the correct method for the element type.
  3. Use try-catch blocks: Use try-catch blocks to catch UnexpectedTagNameException and handle it gracefully.
  4. Use explicit waits: Implement explicit waits to ensure the element is present and ready for interaction.
  5. Update element references: Verify that the element reference is up-to-date and correctly identifies the target element.

Example Code

Here's an example of how to handle UnexpectedTagNameException in Java Selenium: 


import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.WebDriverWait;

public class UnexpectedTagNameExample {
public static void main(String[] args) {
WebDriver driver = new ChromeDriver();
driver.get("https://techoral.com");


    try {
        WebElement element = new WebDriverWait(driver, 10)
            .until(ExpectedConditions.elementToBeClickable(By.id("someElementId")));
        // Verify the element's tag name before performing an action
        if ("input".equals(element.getTagName())) {
            // Perform action on input element
            element.sendKeys("Hello, World!");
        } else {
            System.out.println("Unexpected tag name for the element.");
        }
    } catch (org.openqa.selenium.UnexpectedTagNameException e) {
        // Handle the exception or report the failure
    }

    driver.quit();
}
}

Conclusion

UnexpectedTagNameException is a common exception faced during web automation using Java Selenium. Understanding its causes and implementing best practices to handle it can lead to more robust and reliable test scripts. By verifying element properties, using appropriate methods, and updating element references, you can effectively handle situations where an unexpected tag name is encountered, ensuring smoother and more successful web automation.





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