@Sam Maybe this works, given a CoroutineScope:

scope.coroutineContext[ContinuationInterceptor]

Thx, the type when used with default dispatcher is kotlinx.coroutines.scheduling.DefaultScheduler, which happens to be internal. How can i check to see if it is default? internal object DefaultScheduler

send in a mock of the dispatcher and verify that it's being used?

Or add your custom

Element

to the CoroutineScope's `coroutineContext`and test for that Element's presence in your test-code.

custom Element is fine but nothing stops in that layer from ignoring the provided dispatcher or override with a different dispatcher, and the test would pass instead of failing

I see. Yep, then inserting a ‘mock’ Dispatcher and checking if it is still there is the best option.

yeah, mock is the only way