Write Unit Tests for SceneService

[LeNelSoN]

Quest:

Develop unit tests for the SceneService class to ensure that scene management functionalities work correctly, including adding new scenes and retrieving scenes by ID.

Tasks:

• Test addNewScene Method:

• [ ] Verify that a new scene can be added successfully to an existing parent scene.
• [ ] Ensure that a Scene is created and associated with the correct parent scene.
• [ ] Validate that the method throws an exception when trying to add a scene to a non-existent parent scene.
• [ ] Check that the choices are correctly added to the parent scene.

• Test getSceneById Method:

• [ ] Test successful retrieval of a scene by its ID when it exists.
• [ ] Validate that it throws a RuntimeException when the scene does not exist.

The keeper of the repo 🏰

[RomeoIndiaJulietUniform]

Hii @LeNelSoN I add the unit tests for the Scene Service which covers the following :

1.The testAddNewScene_Success() method verifies that a new scene can be added to an existing parent scene, ensuring the correct creation of the child scene and updating of the parent scene's choices.

2.The testAddNewScene_ParentSceneNotFound() method checks that an exception is thrown when attempting to add a scene to a non-existent parent.

3.The testGetSceneById_Success() and testGetSceneById_SceneNotFound() methods test the retrieval of scenes by ID, confirming successful retrieval when the scene exists and proper exception handling when it doesn't.

Also added a .gitignore file. Please let me know if there are any additional tasks or improvements that need to be addressed. I'm open to any suggestions!