CoroutineNamesTest.kt

class CoroutineNamesTest {
  @Test fun coroutineNames() {
    runBlocking(CoroutineName("parent")) {
      println("parent: $coroutineContext")

      launch {
        println("unnamed child: $coroutineContext")
      }

      launch(CoroutineName("named child")) {
        println("named child: $coroutineContext")
      }
    }
  }
}

output.txt

parent: [CoroutineName(parent), CoroutineId(1), "parent#1":BlockingCoroutine{Active}@47d384ee, BlockingEventLoop@2d6a9952]
unnamed child: [CoroutineName(parent), CoroutineId(2), "parent#2":StandaloneCoroutine{Active}@2aafb23c, BlockingEventLoop@2d6a9952]
named child: [CoroutineName(named child), CoroutineId(3), "named child#3":StandaloneCoroutine{Active}@2eee9593, BlockingEventLoop@2d6a9952]