@Jon Bailey In your example for the new testing framework not working, you are using the same

scope

to create the container and to run the test. This will create a deadlock. The solution here is to use

backgroundScope

. Here is a rewritten version that should work (not tested):

data class ExampleState(val value: String = "")
    class ExampleContainerHost(scope: CoroutineScope):
        ContainerHost<ExampleState, Unit> {

        // create a container
        override val container = scope.container<ExampleState, Unit>(ExampleState())

        fun doSomethingUseful() = intent {
            reduce { ExampleState("foo") }
        }
    }

    @Test
    fun exampleTest() = runTest {
        ExampleContainerHost(this.backgroundScope).test(this) { // < --- Pass backgroundScope to orbit factory f-n
            expectInitialState()
            containerHost.doSomethingUseful()

            expectState { copy("foo") }
        }
    }

I guess this is mostly a missing documentation issue 🙂 I'll try to fix this soon