How to detect if a `CoroutineDispatcher` is suspended due to a delay?

[ZakTaccardi]

I want to be able to inform Espresso that it should not consider itself idle when there is an active coroutine with a specific name that is suspend due to a delay(..).

idlingDispatchers.reportNotIdleWhileCoroutineIsDelayed(
  CoroutineName("my_coroutine")
)

One way to achieve this would be to inject a custom delay(..) function, but I would prefer to avoid that to keep production code simple.

The difficulty I'm having is that I want to leverage the default behavior of DefaultDelay (which is internal) unless I am attempting to monitor a specific CoroutineName for idle.

[elizarov]

You can inject this behavior in a custom CoroutineDispatcher implementation by implementing a Delay interface, in which case the delay(...) function delegates to it.