Скачать или смотреть Automating Record Deletion in a Web Table using Selenium WebDriver

Learn how to efficiently delete records from a web table using Selenium WebDriver in Java. This guide addresses common pitfalls and offers actionable solutions to automate this process effectively.
---
This video is based on the question https://stackoverflow.com/q/69027249/ asked by the user 'enthusiasticCoder' ( https://stackoverflow.com/u/16813026/ ) and on the answer https://stackoverflow.com/a/69027605/ provided by the user 'cruisepandey' ( https://stackoverflow.com/u/9444073/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Delete a record from web table scenario in Selenium Webdriver

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Automating Record Deletion in a Web Table using Selenium WebDriver: A Comprehensive Guide

Deleting records from a grid in a web application is a common task in UI automation testing. However, automating this process using Selenium WebDriver can often lead to challenges, particularly when dealing with conditional elements, such as a delete button that may or may not be present. In this guide, we will explore a method to handle such scenarios effectively while avoiding common pitfalls like NoSuchElementException.

The Problem: Handling Conditional Elements in Selenium

In the original implementation, the tester tried to conditionally check if a delete button was displayed before attempting to click it. However, if the button was not present in the DOM, Selenium triggered a NoSuchElementException. This issue arises due to the isDisplayed() method, which is only valid when the element is available in the DOM.

Here’s an example of the problematic code:

[[See Video to Reveal this Text or Code Snippet]]

Why This Approach Fails

NoSuchElementException: If the element represented by the WebElement isn't found, Selenium throws this exception regardless of the condition.

Inefficiency: The sleep or wait commands don't handle asynchronous changes effectively.

A Better Solution: Using findElements and Error Handling

Implementing findElements

Instead of using isDisplayed() directly, we can use findElements() to check if the delete button exists in the DOM. This method returns a list of elements, allowing us to check its size before proceeding:

[[See Video to Reveal this Text or Code Snippet]]

Step-by-Step Breakdown:

Check Existence: The findElements() method returns a list. If its size is greater than zero, it indicates that the element exists.

Perform Action: If the button is found, you can directly click it or continue with your automation script.

Handle Absence: If the button is not found, gracefully close the driver and exit.

Using try-catch for Robustness

Implementing a try-catch block can further enhance the robustness of your code. This way, even if an unexpected exception occurs, it won't break your entire script.

[[See Video to Reveal this Text or Code Snippet]]

Advantages of This Approach:

Avoid Exceptions: By checking for the existence of the button, you prevent unnecessary exceptions.

Cleaner Code: Your code becomes easier to read and maintain.

Increased Flexibility: You can seamlessly add additional logic or handling in the future.

Conclusion

Automating the deletion of records from a web table in Selenium WebDriver can be effectively managed by understanding and handling conditional elements properly. By using findElements() instead of relying on methods that assume existence, you can greatly improve the stability and efficiency of your automation scripts. Implementing error handling mechanisms, such as try-catch, further boosts the robustness of your automation solution. As you continue to refine your Selenium skills, remember to evaluate your methods and embrace those that best suit your testing scenarios.

By following the recommendations outlined in this post, you'll be well-equipped to handle similar challenges in your automation journey. Happy testing!