Little dispatcher exerciser

Foo.kt

import kotlinx.coroutines.*
import kotlinx.coroutines.launch;
import kotlinx.coroutines.scheduling.ExperimentalCoroutineDispatcher
import kotlinx.coroutines.test.setMain
import java.util.concurrent.TimeUnit
import kotlin.coroutines.coroutineContext

suspend fun log(msg: String) = println("[${Thread.currentThread().name} ${coroutineContext[CoroutineName]}] $msg")

fun main(args: Array<String>) = repeat(1) {
    println("--------------------------------------------------------")
    val simulated = SimulationDispatcher().blockingSimulated(1)
    runBlocking<Unit>(simulated) {
        log("Start")

        generateAmbientLoad()

        launch {
            delay(2000)
            log("Stop")
        }
    }
}

private fun CoroutineScope.generateAmbientLoad() {
    repeat(5) {
//        launch(Dispatchers.Main + CoroutineName("Foo")) {
        launch(CoroutineName("Foo")) {
            delay(2000)
            log("Hello $it")
        }
    }
}

@UseExperimental(InternalCoroutinesApi::class)
class SimulationDispatcher :
    ExperimentalCoroutineDispatcher(1, 1, TimeUnit.SECONDS.toNanos(60L), "SimulationDispatcher")