Introduction
We all like it when our kitchen is neat and tidy. If our kitchen is messy, we might mix up things that we need with the things that we do not need. We might have unwanted items that might cause trouble cooking properly. We can find a similar scene here too. Test object refactoring gives us the power to check and manage unused test items. Let us find out about it.

Refactor Test Objects in Katalon Studio
Test object refactoring is the ability to inspect and manage unused test items, allowing you to see which objects are useful. As a result, you may actively arrange and maintain them. This functionality is crucial for keeping your object repository neat and clear when working on a large and long-term project.
Any Web, Web Service, Mobile, or Windows test object that has not been referenced in a Test Case, Test Listener, or Keyword is considered an unused Test Object.
Note: A Test Object reference is defined as invocations of findTestObject ("test object ID"). If we create a new Test Object programmatically but do not utilise it using findTestObject, it will be counted as "unused."
Steps
Step 1: First, we have to go to the tools option in the top bar.
Step 2: There, we have to go to Test Object and click on Show unused Test Objects. All the unused test objects in our project will be retrieved once we click on it.

We can get a list of test objects that are yet to be used from the Unused Test Objects Report.

By double-clicking the object, we can open its test object view. There we can also inspect and maintain its details. We can also get rid of the outdated and obsolete ones to keep and maintain only the objects we have utilised.
Action to remove all objects that are not needed or unused: We can confirm our action by clicking Delete all. We must be careful because there is no way to recover deleted objects in Katalon Studio. You can keep a backup of such unwanted objects by exporting and importing them with Test Artifact Sharing. This is in case we need them later.

Remove selected objects: To remove only a few selected objects in the list, we can right-click on the object we want to remove, select Delete, and confirm the action.
Object References
Viewing a test object's references reveals where it has been utilised. Right-click the object and choose Show References from the drop-down menu. Katalon Studio looks for the item and returns references to it. To navigate to a corresponding location in that project, we have to double-click on a highlighted reference.

We should know that the objects that are not used do not have references. They also appear in the Unused Test Objects Report that we have talked about.