How to unit test a function that uses the new Angular 14's "inject" function?

I've created a function that utilizes that new Angular 'inject' function. Since the inject function can be used only when initializing a class (or factory) that is part of the dependency injection tree, this function is meant to be used in the constructor of a component / service.

I want to unit test this function with mock dependencies. The problem is I can't just call it in unit tests, because it will be called in an incorrect context. I can create a component / service just for the unit test purposes but it feels like too much boilerplate to test a simple function.

Is there a recommended way of doing this?

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