Is there an analogue of sandbox (playground) in Android Studio?

Question

android studio

Swift has a cool sandbox mode.
You write code and immediately get the result.

What I would like from android studio.
Do not run the entire application on the emulator, but quickly run a call to the data model
initialization
execution
see in the console what log outputs

There are no applications yet. there are files with json . Generated from them classes.
And I want to slowly increase the meat of models and other business logic.

Pervert via unittest ?