Add unit tests for OptionButton

[wheatear-dev]

Further to #43440, this PR contains unit tests for OptionButton in tests/scene/test_option_button.h.

• Initialization:
  • no selectable items
  • 0 items in total
• Single item (an icon):
  • (specified) id and index correspond to each other
  • 1 item in total (until removed, then 0)
  • there are selectable items (until removed, then false)
• Multi-item structure
  • a mixture of 5 icons and items are created and added to the OptionButton
  • they are then steadily deleted and/or disabled, verifying the various properties until none remain

Additionally, an #include directive was added to tests/test_main.cpp, for this new file, to pick up the tests.

[Geometror]

Looks good to me, I leave it up to you whether you want to implement my suggestions. We can always extend the test cases later.

[Geometror]

You should add some checks for the item text getters as well.

In addtion, it would be nice if you could also add some checks for item tooltips.

[wheatear-dev]

Hi @Geometror 👋

Thanks for the review. I request this is merged as is! 😅

My availability is going to be limited for a while.

Anyone else - please feel free to tag in after 😄

Resolved

[akien-mga]

Thanks!