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kotlinlang

Hello, question regarding `expect/actual`
if the recommendation is to use interfaces instead of an expect/actual,  then how do you write tests for that common classes?

example:
```interface UUIDProvider {
   fun randomUID(): String
}

@Test
fun randomUID_isNotEmpty() {
    assertTrue(UUIDProvider().randomUID().isNotEmpty()) // we can't do that.
}```


In that case we are forced to create UUIDProvider using Di right?

Use interfaces instead of `expect/actual` for classes. In this case, if you didn't want to deal with DI, I'd suggest writing `expect/actual` factory functions to create the platform-specific interface implementation. `expect/actual` factory functions are also useful in main code for default implementations, while still allowing for injected ones. In that scenario, just remember to make those factory functions internal :slightly_smiling_face: