dart-sdk/tests/isolate/spawn_uri_exported_main_test.dart

import "dart:async";
import "dart:isolate";
import "package:expect/expect.dart";

main() {
  print("Spawning isolate.");
  var t = new Timer(new Duration(seconds:5), () {
	Expect.fail("Isolate was not spawned successfully.");
  });
  var rp = new RawReceivePort();
  rp.handler = (msg) {
    print("Spawned main called.");
    Expect.equals(msg, 50);
	rp.close();
  };
  Isolate.spawnUri(Uri.parse("spawn_uri_exported_main.dart"), null, rp.sendPort).then((_) {
    print("Loaded");
	t.cancel();
  });
}