I know I read the answer somewhere, but how can I mock a method like

fun updateParticipant(participant: Participant, update: Participant.() -> Unit)

? I am trying with

val participantOrchestrationService: ParticipantOrchestrationService = mockk(relaxed = true)
val dummy = Participant()
val update = slot<Participant.() -> Unit>()
every { participantOrchestrationService.updateParticipant(dummy) { capture(update) } } just Runs
update.captured(dummy)
dummy should {
	it.state == State.inactive
}

but getting

kotlin.UninitializedPropertyAccessException: lateinit property captured has not been initialized

any suggestion?

Can you please put the code to gist? It is very hard to read

thanks for the feedback. While creating a gist with a smaller example, I actually found the problem and it was in my code. the signature of

updateParticipant

is

fun updateParticipant(participant: Participant, update: Participant.() -> Unit = {}) : Unit

the

every

block should be

every { participantOrchestrationService.updateParticipant(dummy, capture(update)) } just Runs

, having

capture

in a lambda itself satisfied the compiler, but ofc the capturing itself never run. It was kinda of a dummy mistake. sorry for wasting your time

Nws