I want to write a test that checks if a property I have is a certain type. The property is a sealed class, so I want to write something like:

fun assertNetworkStateType(clazz: Class<*>) { assertTrue(networkState is clazz) }

so that I can call it like

assertNetworkStateType(NetworkState.Loading)

but I can't quite figure out what the type of that parameter would be.

If I understand you might want an inline function with a

reified

type parameter:

inline fun <reified T> assertNetworkStateType(obj: Any?) = assertTrue(obj is T)

and how would I call that?

Then you should explain what exactly you want 😉