package sample

import kotlinx.coroutines.*
import kotlin.coroutines.CoroutineContext
import kotlin.coroutines.EmptyCoroutineContext
import kotlin.js.Promise
import kotlin.test.Test
import kotlin.test.assertEquals

class PromiseSampleTest {
    @Test
    fun testHelloAsync() = async {
        val result = getAsyncData().await()
        assertEquals(result, "Hello")
    }

    private fun getAsyncData(): Promise<String> {
        return Promise.resolve("Hello")
    }
}

fun <T> async(
    context: CoroutineContext = EmptyCoroutineContext,
    start: CoroutineStart = CoroutineStart.DEFAULT,
    block: suspend CoroutineScope.() -> T
): Deferred<T> {
    return GlobalScope.async(context, start, block)
}