!7

p {
  cleanUp_interruptThreads = true;
  assertEquals(ll(currentThread()), registeredThreads());
  
  // invoke & run module
  O o = runInSemiNewThread(#1008275);
  
  // count threads
  sleep(500);
  print(l(registeredThreads(o)));
  while (l(registeredThreads(o)) < 3) sleep(10);
  assertEquals(3, l(registeredThreads(o)));
  
  // clean up
  cleanUp(o);
  
  // see threads disappear
  sleep(500);
  print(l(registeredThreads(o)));
  print("Waiting for GC...");
  gc();
  while (l(registeredThreads(o)) > 0) sleep(10);
  
  assertEquals(1, l(registeredThreads()));
  print("OK!");
}