@Test
public void testSimple() throws InterruptedException, ExecutionException {
Callable<String> mainJob =
new Callable<String>() {
public String call() {
log.info("main job - " + Tasks.current());
messages.add("main");
DynamicTasks.queue(sayTask("world"));
return "bye";
}
};
DynamicSequentialTask<String> t = new DynamicSequentialTask<String>(mainJob);
// this should be added before anything added when the task is invoked
t.queue(sayTask("hello"));
Assert.assertEquals(messages, Lists.newArrayList());
Assert.assertEquals(t.isBegun(), false);
Assert.assertEquals(Iterables.size(t.getChildren()), 1);
ec.submit(t);
Assert.assertEquals(t.isSubmitted(), true);
Assert.assertEquals(t.getUnchecked(Duration.ONE_SECOND), "bye");
long elapsed = t.getEndTimeUtc() - t.getSubmitTimeUtc();
Assert.assertTrue(
elapsed < 1000,
"elapsed time should have been less than 1s but was " + Time.makeTimeString(elapsed, true));
Assert.assertEquals(Iterables.size(t.getChildren()), 2);
Assert.assertEquals(messages.size(), 3, "expected 3 entries, but had " + messages);
// either main or hello can be first, but world should be last
Assert.assertEquals(messages.get(2), "world");
}
