Add test for ItemInfo class

[yashpal2104]

Testing done

Add test for ItemInfo class

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did

[yashpal2104]

@MarkEWaite would like your thoughts on this

[MarkEWaite]

As a general pattern, most Jenkins plugin maintainers don't review draft pull requests. A pull request is usually marked as draft by the submitter because they are not ready for review.

Since you asked for my feedback, I checked the CI job. The pull request fails to compile. You need to fix the compilation before I'll spend time reviewing the pull request in any other way.

[yashpal2104]

Hey @MarkEWaite,
I know it is too much to task but addressing the problem here clearly, I have written the test class but the object I am using (i.e item) in my tests for assertions is only going to be used when I implement an abstract class of hudson.model.Queue.Item which is inside hudson.model.Queue hence the compiling error is occuring when building, if you can help me implement the methods enter(Queue q) and leave(Queue q) which are abstract methods in the abstract class hudson.model.Queue.Item, I have tried to solve this but I was unsuccesful in implementing them it will be a breakthrough if someone helps me in implementing these in my test class.
I also have another solution but that includes refactoring the Queue.java class in the jenkinsci repository and I am not inclined towards it.