public final void testPublishingDuplicatedStat() {
DummyService service1 = injector.getInstance(DummyService.class);
DummyService service2 = injector.getInstance(DummyService.class);
service1.call();
service2.call();
Stats stats = injector.getInstance(Stats.class);
ImmutableMap<StatDescriptor, Object> snapshot = stats.snapshot();
assertEquals(2, snapshot.size(), snapshot.toString());