ExceptionHandlingWithAsync.kt

ExceptionHandlingWithAsync.kt

    @Test
    fun `direct throw exception in async with scope with try-catch`() {
        runBlocking {
            val deferred: Deferred<String> = GlobalScope.async {
                println("start job")
                throw IllegalArgumentException("throw IllegalArgumentException from launch")
            }
            try {
                println(deferred.await())
            } catch (e: IllegalArgumentException) {
                println("catch error : ${e.message}")
            }
            println("finish")
        }
    }
    
    @Test
    fun `direct throw exception in async with scope with runCatching`() {
        runBlocking {
            val deferred: Deferred<String> = someScope.async(exceptionHandling) {
                println("start job")
                throw IllegalArgumentException("throw IllegalArgumentException from launch")
            }
            runCatching { deferred.await() }
                .onFailure { println("catching run: ${it.message}") }
                .onSuccess { println(it) }
            println("finish")
        }
    }